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BeagleBoard-xM System Reference Manual
Revision C.1.0
BeagleBoard-xM Rev C System Reference Manual
Revision 1.0 April 4, 2010
Page 1 of 164
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BeagleBoard-xM System Reference Manual
Revision C.1.0
NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at their own expense. All accessories used with this board must meet FCC certification to maintain compliance of this equipment.
NOTE:. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: —Reorient or relocate the receiving antenna. —Increase the separation between the equipment and receiver. —Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. —Consult the dealer or an experienced radio/TV technician for help. Changes or modifications not expressly approved by this manual for compliance could void the user's authority to operate the equipment.
THIS DOCUMENT This work is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported License. To view a copy of this license, visit http://creativecommons.org/licenses/bysa/3.0/ or send a letter to Creative Commons, 171 Second Street, Suite 300, San Francisco, California, 94105, USA. All derivative works are to be attributed to Gerald Coley of BeagleBoard.org. For more information, see http://creativecommons.org/license/resultsone?license_code=by-sa For any questions, concerns, or issues submit them to firstname.lastname@example.com
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Revision C.1.0
BEAGLEBOARD DESIGN These design materials referred to in this document are *NOT SUPPORTED* and DO NOT constitute a reference design. Only "community" support is allowed via resources at BeagleBoard.org/discuss.
THERE IS NO WARRANTY FOR THE DESIGN MATERIALS, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE DESIGN MATERIALS "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE DESIGN MATERIALS IS WITH YOU. SHOULD THE DESIGN MATERIALS PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION. We mean it; these design materials may be totally unsuitable for any purposes.
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INCLUDING ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE. marketing-.org. Due to the open construction of the product. FCC. This notice contains important safety information about temperatures and voltages. it is the user's responsibility to take any and all appropriate precautions with regard to electrostatic discharge. INCIDENTAL. This evaluation board/kit does not fall within the scope of the European Union directives regarding electromagnetic compatibility. The user assumes all responsibility and liability for proper and safe handling of the goods.org covering or relating to any machine. the goods being provided are not intended to be complete in terms of required design-. For additional information on BeagleBoard. Should this evaluation board/kit not meet the specifications indicated in the User's Guide. OR EVALUATION PURPOSES ONLY and is not considered by BeagleBoard.org to be a finished end-product fit for general consumer use. BeagleBoard.org currently deals with a variety of customers for products.S. EXPRESSED.org from all claims arising from the handling or use of the goods. and/or manufacturing-related protective considerations. EXCEPT TO THE EXTENT OF THE INDEMNITY SET FORTH ABOVE. DEMONSTRATION. and therefore our arrangement with the user is not exclusive.A. customer product design. OR CONSEQUENTIAL DAMAGES.org environmental and/or safety programs. OR STATUTORY. THE FOREGOING WARRANTY IS THE EXCLUSIVE WARRANTY MADE BY SELLER TO BUYER AND IS IN LIEU OF ALL OTHER WARRANTIES.org assumes no liability for applications assistance. TX 75081 U. As such. please contact visit BeagleBoard. including product safety and environmental measures typically found in end products that incorporate such semiconductor components or circuit boards. and therefore may not meet the technical requirements of these directives or other related directives. SPECIAL. process. No license is granted under any patent right or other intellectual property right of BeagleBoard. CE or UL. IMPLIED. Mailing Address: BeagleBoard. software performance. or combination in which such BeagleBoard.0 BeagleBoard. the board/kit may be returned within 30 days from the date of delivery for a full refund.org provides the enclosed product(s) under the following conditions: This evaluation board/kit is intended for use for ENGINEERING DEVELOPMENT. NEITHER PARTY SHALL BE LIABLE TO THE OTHER FOR ANY INDIRECT. restricted substances (RoHS). the user indemnifies BeagleBoard. recycling (WEEE).org 1380 Presidential Dr. or infringement of patents or services described herein. Persons handling the product(s) must have electronics training and observe good engineering practice standards. BeagleBoard. the Warnings and Restrictions notice in the User's Guide prior to handling the product.org products or services might be or are used. Further. specifically. #100 Richardson.1.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C. Please read the User's Guide and. Page 4 of 164 .
exposure to water. abuse. If no issue is found or express return is needed. To return a defective board. modifications.org/support Please refer to sections 12 and 13 of this document for the board checkout procedures and troubleshooting guides. the customer will pay all shipping costs. Before returning the board.1.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C. please request an RMA at http://beagleboard. please visit BeagleBoard. All boards will be returned via standard mail if an issue is found. excessive voltages.0 WARRANTY: The BeagleBoard is warranted against defects in materials and workmanship for a period of 90 days from purchase.org/support/rma Page 5 of 164 . This warranty does not cover any problems occurring as a result of improper use. or accidents.
REF: BB_SRM_xM
BeagleBoard-xM System Reference Manual
Revision C.1.0
Table of Contents
2.1 CHANGE HISTORY ............................................................................................................................16 2.2 BEAGLEBOARD VS. BEAGLEBOARD-XM .........................................................................................16 2.2.1 Hardware Changes ................................................................................................................16 2.2.2 Software Changes ..................................................................................................................17 2.3 –XM REVISION A2 VS. –XM REVISION A3 .......................................................................................17 2.4 –XM REVISION A3 VS. –XM REVISION B .........................................................................................17 2.5 –XM REVISION B VS. –XM REVISION C ...........................................................................................18 2.6 DEFINITIONS ....................................................................................................................................18 3.0 BEAGLEBOARD OVERVIEW .......................................................................................................21 BEAGLEBOARD VERSIONS ...............................................................................................................21
3.1 4.0
4.1 4.2 4.3 4.4 4.5 4.6 4.7 4.8 4.9 4.10 4.11 4.12 4.13 4.14 4.15 4.16 4.17 4.18 4.19 4.20 4.21 4.22 4.23 4.24 5.0
5.1 5.2 5.3 6.0
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6.2 6.3 6.4 6.5 6.6 6.7 6.8 6.9 6.10 6.11 6.12 6.13 7.0
7.1 SYSTEM BLOCK DIAGRAM ...............................................................................................................47 7.2 OVER VOLTAGE PROTECTION ..........................................................................................................49 7.3 POWER CONDITIONING ....................................................................................................................50 7.3.1 USB DC Source .....................................................................................................................51 7.3.2 Wall Supply Source ................................................................................................................52 7.3.3 DC Source Control ................................................................................................................52 7.3.4 AUX 3.3V Supply ...................................................................................................................53 7.4 METER CURRENT MEASUREMENT ...................................................................................................54 7.5 PROCESSOR CURRENT MEASUREMENT ............................................................................................54 7.6 VBAT POWER CONDITIONING .........................................................................................................56 7.7 TPS65950 RESET AND POWER MANAGEMENT ................................................................................56 7.7.1 Main Core Voltages ...............................................................................................................57 7.7.2 Main DC Input .......................................................................................................................57 7.7.3 Processor I2C Control ...........................................................................................................57 7.7.4 VIO_1V8 ................................................................................................................................57 7.7.5 Main Core Voltages Smart Reflex .........................................................................................59 7.7.6 VDD1 .....................................................................................................................................59 7.7.7 VDD2 .....................................................................................................................................59 7.8 PERIPHERAL VOLTAGES ...................................................................................................................60 7.8.1 VDD_PLL2 ............................................................................................................................60 7.8.2 VDD_PLL1 ............................................................................................................................61 7.8.3 VDAC_1V8 ............................................................................................................................61 7.8.4 VDD_SIM ..............................................................................................................................62 7.8.5 VMMC2 .................................................................................................................................62 7.8.6 VDD_VMMC1 .......................................................................................................................62 7.8.7 CAM_2V8 ..............................................................................................................................62 7.8.8 CAM_1V8 ..............................................................................................................................62 7.8.9 USB_1V8 ...............................................................................................................................62 7.8.10 EXP_VDD .........................................................................................................................63 7.9 OTHER SIGNALS ...............................................................................................................................63 7.9.1 Boot Configuration ................................................................................................................63 7.9.2 RTC Backup Battery ..............................................................................................................63 7.9.3 Power Sequencing .................................................................................................................64 7.9.4 Reset Signals ..........................................................................................................................64 7.9.5 mSecure Signal ......................................................................................................................66 7.10 PROCESSOR .................................................................................................................................66 7.10.1 Overview ...........................................................................................................................67 7.10.2 SDRAM Bus ......................................................................................................................67 7.10.3 GPMC Bus ........................................................................................................................68 7.10.4 DSS Bus ............................................................................................................................68 7.10.5 McBSP2 ............................................................................................................................68
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7.10.6 McBSP1 ............................................................................................................................68 7.10.7 McBSP3 ............................................................................................................................69 7.10.8 Pin Muxing........................................................................................................................69 7.10.9 GPIO Mapping .................................................................................................................71 7.10.10 Interrupt Mapping.............................................................................................................71 7.11 POP MEMORY DEVICE ................................................................................................................72 7.12 SYSTEM CLOCKS .........................................................................................................................72 7.12.1 32KHz Clock .....................................................................................................................73 7.12.2 26MHz Clock ....................................................................................................................73 7.12.3 McBSP_CLKS ...................................................................................................................74 7.13 USB OTG PORT ..........................................................................................................................74 7.13.1 USB OTG Overview ..........................................................................................................74 7.13.2 USB OTG Design ..............................................................................................................75 7.13.3 OTG ULPI Interface .........................................................................................................75 7.13.4 OTG Charge Pump ...........................................................................................................76 7.13.5 OTG USB Connector ........................................................................................................77 7.13.6 OTG USB Protection ........................................................................................................77 7.14 ONBOARD USB HUB ..................................................................................................................77 7.14.1 Power ................................................................................................................................78 7.14.2 HS USB PHY .....................................................................................................................79 7.14.3 USB HUB ..........................................................................................................................81 7.14.4 USB Port Connectors ........................................................................................................83 7.14.5 Ethernet.............................................................................................................................84 7.15 MICROSD ....................................................................................................................................85 7.15.1 microSD Power .................................................................................................................85 7.15.2 Processor Interface ...........................................................................................................85 7.15.3 Card Detect .......................................................................................................................86 7.15.4 Booting From SD/MMC Cards .........................................................................................86 7.16 AUDIO INTERFACE ......................................................................................................................87 7.16.1 Processor Audio Interface ................................................................................................87 7.16.2 TPS65950 Audio Interface ................................................................................................88 7.16.3 Audio Output Jack ............................................................................................................88 7.16.4 Audio Input Jack ...............................................................................................................88 7.17 DVI-D INTERFACE ......................................................................................................................89 7.17.1 Processor LCD Interface ..................................................................................................90 7.17.2 LCD Power .......................................................................................................................91 7.17.3 TFP410 Power ..................................................................................................................91 7.17.4 TFP410 Framer ................................................................................................................91 7.17.5 TFP410 Control Pins ........................................................................................................92 7.17.6 DVI-D Connector ..............................................................................................................93 7.18 LCD EXPANSION HEADERS.........................................................................................................95 7.19 S-VIDEO ......................................................................................................................................96 7.20 CAMERA PORT ............................................................................................................................97 7.20.1 Camera Power ..................................................................................................................98 7.20.2 Camera I2C Port ..............................................................................................................99 7.20.3 Processor Camera Port Interface .....................................................................................99 7.20.4 Camera Modules .............................................................................................................101 7.21 RS232 PORT..............................................................................................................................102 7.21.1 Processor Interface .........................................................................................................102 7.21.2 Level Translator ..............................................................................................................102 7.21.3 RS232 Transceiver ..........................................................................................................103 7.21.4 Connector .......................................................................................................................103 7.22 INDICATORS ..............................................................................................................................103 7.22.1 Power Indicator ..............................................................................................................104 7.22.2 PMU Status Indicator .....................................................................................................104
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......................123 8....26................................138 USB TO BLUETOOTH .110 7.........................26 AUXILIARY EXPANSION HEADER ........9 DMAREQ ............4 Reset ..................................................................................127 8.............................................................24...........9............................114 7......115 7...........................................5 LCD and Expansion Measurements .0 10.............................................................137 DVI-D MONITORS ..................128 8.........................................................................................................106 7..110 7.............................................26....................................116 8......................114 7..........5 Power Control.....105 7.................................................................141 BEAGLEBOARD EXPANSION CARD DESIGN INFORMATION .......................................................4 HSUSB1 Signals ....................133 8......................................................................................................................................................125 8.......23 JTAG ..............................................................5..............1 9................115 8..................................................5...........................................................6 AUDIO CONNECTIONS .....1....................5 9...........................2 9..........110 7..................................135 DC POWER SUPPLY ............133 8...............139 MECHANICAL INFORMATION ................................2 Expansion Signals ..........................................................................................................................................................................24....................1 Connector Pinout .................................................................................0 BEAGLEBOARD ACCESSORIES .........130 8........105 7.......26.121 8.............................................................................................................................................................110 7.................107 7...4 Auxiliary Access Header.......114 7....................5....................................................................................................................................131 8.............................................133 9.............................23.......................................4 9...............................................141 BEAGLEBOARD DIMENSIONS ..........2 Camera .........3 Audio McBSP2 Port..........2 MMC3 Signals .......26.........................................................................................1 Processor Interface ......4 HUB Power Indicator ....................................129 8.....105 7..116 8.........................................................106 7...........................5.......................................................REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C..............................6 10.........................................3 ETK Signals ................4 DVI-D ........................................................26..........121 8..............................................................................................................114 7...............1 10......................137 MICROSD CARDS ........1 POWER CONNECTOR .0 CONNECTOR PINOUTS AND CABLES ..............................................................................................................................................1 MCBSP5 Signals .............105 7..................................................................................................................................2 JTAG Connector ......5..........112 7...................3 Power .......23...............................................................22..................................................................26........................................8 GPIO Signals .......................................................................................................................5 LCD..............26.................................................................................................................................................26................................................................................................24.......................6 HDQ 1-Wire .............................................3 User Indicators ........................................................................7 AUDIO OUT ......................1 Battery ............................................................8 JTAG ..................................................115 7.................108 7...........................................................................................................................118 8....................................................................................................................................................................24 MAIN EXPANSION HEADER .9..................................................................................................................................................................................................................................................5 Alternate Clock .......................................138 USB TO WIFI ..........................................................................................................................24..........................5 Overvoltage Indicators .................................................................................................112 7...........7 ADC ........................................106 7.........................26............22...................................................................................................142 9.........................2 Page 9 of 164 ..............136 DVI CABLES ...............................................................................................2 Battery Installation ..........................22...............................................................................................3 9...................................................25 LCD EXPANSION HEADER .............................................27 AUDIO EXPANSION HEADER ...........................................................6 Mounting Scenarios ....................1 Processor Interface ......................5..............................................0 7............................................................9 BATTERY INSTALLATION .......................113 7..................................3 S-VIDEO...........................................................................................................................................................................................................................................................................................................117 8...............................................................111 7..................................2 USB OTG ....................119 8......126 8................24............................................................
........................ Figure 21............................................................................................................................................................................................................. 64 Reset Circuitry . Figure 23....................... Figure 28... 56 Main Power Rails ........................................................... 68 Page 10 of 164 .............. Figure 2................... 31 -xM Rev A Box Contents ..... 58 Peripheral Voltages .............................................................................. Figure 24.................................................................................................................. Figure 18.......................................................................... Figure 19............................. Figure 13....................................... 41 BeagleBoard Audio In Cable Connection....................................3 Power Section ..... Figure 20.........................................1 Signal Access Points ...................................................................................143 BOARD VERIFICATION TEST POINTS....................................... 38 BeagleBoard S-Video Connection ............ 48 Overvoltage Protection ................ 53 Processor Current Measurement .................... Figure 9... 32 USB OTG Connection ........................................................................................REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C..............................................................142 Expansion EEPROM ......................................................152 BILLS OF MATERIAL. 65 AM37x Block Diagram................................................................................. Figure 4........ Figure 27.............149 PCB COMPONENT LOCATIONS.................................2....................................................... 40 BeagleBoard Audio Out Cable Connection .....164 Figures Figure 1...........0 15......................................... 39 BeagleBoard DVI-D Connection ................................................................................ 43 BeagleBoard Button Location.................2 11...... 37 BeagleBoard Serial Cable Connection...............0 KNOWN ISSUES ....................... 36 BeagleBoard JTAG Connection . 51 AUX 3.................................................................... 34 USB Host Connection .........145 11............................................................ Figure 6.................................................................................................... 46 BeagleBoard-xM High Level Block Diagram ................................................................. 44 BeagleBoard microSD Card Location ...............................2.............................................................................................. 66 McBSP2 Interface ........ Figure 26............ 61 Power Sequencing ..............................1.150 SCHEMATICS ........ Figure 5. Figure 10....................................................0 Mounting Method ......................... 35 DC Power Connection ..............................0 16....................163 PCB INFORMATION .... 42 BeagleBoard Indicator Locations . Figure 15.................... Figure 16.... Figure 25.................. 49 Input Power Section .............................1 10........................ Figure 14.........................................................0 10................................ 24 The –xM Rev A Box ............... 47 BeagleBoard Major Components ...................................................... Figure 22.................................................................................................................. Figure 12..................... BeagleBoards C4 and –xM ................................... Figure 29...................................................................148 12............................................................ Figure 17.......................................................................................................................................... Figure 30.................................................................................2 TROUBLESHOOTING GUIDE .....................0 14.................. Figure 3..... Figure 7.................................... 45 BeagleBoard LCD Header Location ....147 11.............................. 54 VBAT Power Conditioning ........................... 21 USB Y-Cable ....................................................1.......................................... Figure 8................................ Figure 11....................0 13............................
............. 120 DVI-D Cable ............................... 87 DVI-D Interface ... 130 Audio Out Connector ............................................................ 97 Camera Port Interface ................................................................. Figure 52......................................................................................... Figure 72......................................... 131 JTAG 14 to 20 Pin Adapter ............ 117 OTG Host Shorting Pads ................................................. Figure 49...................................... 72 System Clocks ............... Figure 73. Figure 48....................... Figure 40................... 130 JTAG Connector Pinout.. Figure 33............................................................... Figure 39......................... Figure 42.................1... Figure 44..................................................................... 107 Power Connector ............................................................................... Figure 76...... 129 Audio Out Plug ............................. 117 S-Video Connector........................................................................................................................... 79 USB PHY Design ..... 125 Auxiliary Access Connector .................................... 78 HUB Power Circuitry ... Figure 67................................................................................. 120 LCD Expansion Connector Pins .. 85 Audio Circuitry ................................................................... 98 Camera Modules ...................................... 116 USB OTG Connector ................................... 101 RS232 Interface Design ................ Figure 61. Figure 32........ Figure 54............................................. 80 USB HUB Design ...................... 132 Optional Battery ................................................ Figure 53......... Figure 45......................................... Figure 58......................... Figure 60......................................................................... Figure 66.............................................................................................................................0 Figure 31.................. McBSP1 Interface ....................... 118 DVI-D Connector.................................................................................... Figure 37......................................... Figure 75...................................... 124 Camera Module ................................................................... 104 JTAG Interface...................................................................................................................................... Figure 47.................................................................. Figure 34........... Figure 51.................. Figure 65..................... 126 Top Mount LCD Adapter.............. 84 microSD Interface ...... 136 Page 11 of 164 ........................................................... 132 JTAG Connector Pinout........................................... Figure 55........ 102 Indicator Design .................... Figure 71.................................. 106 Main Expansion Header Processor Connections .............. Figure 57.... Figure 74...... Figure 68................................ 134 Resistor R65 ......................................... Figure 36. 89 S-Video Interface ............................... 69 McBSP3 Interface ...................................................... 128 Audio In Plug ..... Figure 41........................................................................ 69 POP Memory ....................... Figure 63.. Figure 35.......................... Figure 69........................................... 75 USB HUB Block Diagram ................................................................. 122 Camera Connector ..........................................................................................REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C.................................................................... Figure 50........................................................................................................................................................................................ 133 Optional Battery Location... 124 McBSP Audio Connector ..................................................................................................... 83 USB Based Ethernet Design ... 73 USB OTG Design ................................................. Figure 38....... Figure 70....................................................................................... Figure 46......................... 127 Bottom Mount LCD Adapter ......... Figure 43.......................... 119 DVI-D Cable ............................................... 134 DC Power Supply .................................................. Figure 56........................................ Figure 59.................................................................................................................................................. Figure 64. Figure 62................................................................... 129 Audio In Connector.......... 82 USB Port Power Design..............................
....0 Figure 77......... 115 DVI-D to HDMI Cable .................................................................................................. Table 26............................................................................ 76 TPS65950 ULPI Interface... Table 23..... 147 BeagleBoard Top Side Components ................................................................................................... 77 USB Host Port OMAP Signals ..........................................................1..... Table 30....................................................................................... Table 20.................................................................................................................................................REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C........... Table 2........ Table 5...... Table 12............................................................................................................. Figure 82.......... Table 21................................................................ Table 7...................................... Table 3.... 110 P13 GPIO Signals .............................................................. Table 11..... Figure 86..................................... Table 18.............................. 106 Expansion Connector Signals ..... Table 9........ 85 Processor Audio Signals ................................................. 113 P13 Auxiliary ETK Signals .................................................................... Figure 78..................... 96 S-Video Interface Signals .... Figure 87.............................................................................. 144 BeagleBoard Voltage Access Points .............................................. Change History .................................................................................................................. Table 8................................... Table 16......................................... Figure 85...... 88 Processor LCD Signals ................... Table 10............................................................... 71 Processor ULPI Interface ... 139 BeagleBoard Dimension Drawing ..... 97 Camera Interface Signals ............................................................ 137 USB to WiFi ............................... 99 Camera Pin Signal Mapping ........... 90 TFP410 Interface Signals ............ 114 P13 Auxiliary GPIO Signals .............................................................. 112 P13 MMC3 Expansion Signals ........................ Table 28...... Table 31................ 138 USB to Bluetooth ............................ Table 14...... 141 BeagleBoard Bottom Stacked Daughter Card ..... Table 24. 95 P13 LCD Signals....................................................................... 143 BeagleBoard Expansion Board EEPROM Schematic .................. Table 25.......................................................................... Figure 81....... 87 Processor Audio Signals .................................... 119 Page 12 of 164 ................. Table 13........................................................................................... 112 P13 McBSP5 Expansion Signals ............. Table 32................................................ 22 BeagleBoard Electrical Specification –xM Rev A ..................... Figure 83... Table 19............................................ 16 BeagleBoard-xM Features ..................................................................... 150 BeagleBoard Bottom Side Components ............................... 111 P13 Auxiliary Expansion Signals ..................................... Figure 84......................................................................... 100 JTAG Signals ............................................................................... 113 P13 High Speed USB Expansion Signals .................... Table 15................ 108 Expansion Connector Signal Groups ......... 76 USB OTG Charge Pump Pins .................................................................. Table 6.... Table 17................................................ 29 Processor Pin Muxing Settings ....... Table 27...................................................................... Table 22...... 80 SD/MMC OMAP Signals .. 145 BeagleBoard Signal Access Points ........................... HDMI to DVI-D Cable ..................................... 151 Tables Table 1.......................................... Table 29............... 108 P11 GPIO Signals ........... Figure 79................................. Table 4....................... 71 Processor Interrupt Pins . 70 Processor GPIO Pins .............. 142 BeagleBoard-xM Expansion Headers . Figure 80................................................... 91 P11 LCD Signals.......................................................
......................................................... Table 45............................................................................................................. Table 40.......................... 146 Troubleshooting ......................................................................... Table 34...... Table 39............................................................ Table 42.............................................................. 136 DVI-D Monitors Tested ................................. 149 NOTES Page 13 of 164 .....................................................................................................................1.... 131 DC Power Supply Specifications ....................................................................................................... 125 P17 Auxiliary Access Signals .... 123 P10 McBSP2 Signals . 127 JTAG Signals ...................................................................................................... 126 Connector Dimensions .............................................. P11 LCD Signals........................................ Table 44. Table 46......................................................................... 139 USB to Bluetooth Adapters ........................... 121 P13 LCD Signals.............................................. Table 48..................0 Table 33..................................... 140 Voltages .................. Table 41.......... Table 47........................................ Table 38..... 136 DC Power Supplies .. Table 37.... 137 SD/MMC Cards Tested............ 122 P10 Camera Signals ................. Table 35............................................. Table 43................................................................................................................REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C........ Table 36........... 138 USB to WiFi Adapters ............ 148 Known Issues .........
Section 3. Section 4. For the remainder of this document the DM3730 will be referred to as the processor. AM3715. can also be found on the TI website.0– Connector Pinouts and Cables The section describes each connector and cable used in the system. purchase cables. the processor is a DM3730 processor manufactured and sold by Texas Instruments and information on this can be found at the TI website. Section 7.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C.0– Connections Covered here is how to connect the various cables to the BeagleBoard. This document provides detailed information on the overall design and usage of the BeagleBoard from the system level perspective. Section 9. The processor used on the BeagleBoard-xM is compatible with several Cortex A8 processors manufactured by Texas Instruments. a low cost ARM Cortex A8 board supported through BeagleBoard. This is a very detailed section that goes into the design of each circuit on the board. The key sections in this document are: Section 2. is that the DSP is not included on the AM3715.0– Definitions and References This section provides definitions for commonly used terms and acronyms.0 Introduction This document is the System Reference Manual for the BeagleBoard-xM.0– Overview This is a high level overview of the BeagleBoard. It is expected that the user will refer to the appropriate documents for these devices to access detailed information.0– System Architecture and Design This section provides information on the overall architecture and design of the BeagleBoard.1. Section 5. Section 8. Additional information for the ARM only version. It is not intended to provide detailed documentation of the processor or any other component used on the board. or to perform debugging as needed.0– Specification Provided here are the features and electrical specifications of the BeagleBoard.0-Product Contents Describes what the BeagleBoard package looks like and what is included in the box.0– Change History Provides tracking for the changes made to the System Reference Manual. Page 14 of 164 .0 1. The key difference between the AM3715 and the DM3730.org. Section 6. Currently. This will allow the user to create cables.
0.Bill Of Material This section describes where to get the latest Bill of Material for the BeagleBoard.BeagleBoard Components This section provides information on the top and bottom side silkscreen of the BeagleBoard showing the location of the components.0. It does not guarantee that these devices will work on all OS implementations. but does provide an idea of the types of cables and accessories that can be supported and how to find them. Section 13.1. Section 17.0 Section 10.BeagleBoard Schematics These are the schematics for the BeagleBoard and information on where to get the PDF and OrCAD files.0.0.0 – Mechanical Information is provided here on the dimensions of the BeagleBoard.Known Issues This section describes the known issues with the current revision of the BeagleBoard and any workarounds that may be possible.. Section 16.BeagleBoard PCB Information This section describes where to get the PCB file information for the BeagleBoard. Section 15. This is not an exhaustive list.0. Page 15 of 164 . Section 14. Section 11.0– BeagleBoard Accessories Covered in this section are a few of the accessories that may be used with BeagleBoard.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C.0 – Troubleshooting Here is where you can find tips on troubleshooting the setup of the BeagleBoard. Section 12. It also provides a definition of what they need to be.
2.0 2.2 silicon Date 6/4/2010 6/21/2020 7/23/2010 10/18/2010 10/26/2010 4/4/2010 By GC GC GC GC GC GC 2.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C.1 Change History Change History Table 1 tracks the changes made for each revision of this document.2. Rev A A1 A2 A3 B C Change History Changes Initial release.1 silicon revision.2 BeagleBoard vs.0 2. Table 1.1. The BeagleBoard refers to the original board and the BeagleBoard-xM is the newer version. Moved to ES1. BeagleBoard-xM There are several differences between the BeagleBoard and the BeagleBoard-xM . Updated to new power OVP scheme Updated with camera and Memory information Moved to Rev B PCB.1 Hardware Changes AREA Processor ARM Frequency DSP Frequency SGX Frequency DDR DDR Speed NAND SD Connector USB Host Ports Host Port Speed Serial Connector Camera Header Ships with 4G SD Overvoltage Protection Power LED turnoff Serial Port Power Turnoff BeagleBoard-xM DM3730 1GHZ 800Mhz 200Mhz 512MB 166MHz 0 uSD 4 FS/LS/HS DB9 Yes Yes Yes Yes Yes BeagleBoard OMAP3530 720MHz 520MHz 110MHz 256MB 166MHz 256MB MMC/SD 1 HS Header No No No No No Comments Direct connect to USB to Serial Cable Leopard Imaging Camera module Contains bootable desktop Page 16 of 164 . Design changes and moved to revision ES1.
only for expansion. updated SW can be used to turn off the DVI interface by taking the pin LO. o Moved DVI_PUP pin to the TPS65950 GPIO2. No electrical difference.1.1 revision. o Slightly modified PCB layout (Rev B) to correct the following o Changed silkscreen on L12 to R159 to reflect the usage of a resistor instead of an inductor. No SW impact and Angstrom kernel. No electrical difference.4 –xM Revision A3 vs. No electrical difference. For a detailed description of the issues present in the ES1. No electrical difference. o Changed routing on R66 and R68 to make them separate paths instead of parallel. however. Not populated on Rev A3. There may be issues with other distributions until such time as their code is updated. Loaded with a zero ohm resistor. o Added R156 to remove the required lifting of U18 pin 4. –xM Revision A2 vs. o A demo version of the Angstrom desktop distribution. Below are the differences between the Rev A2 and Rev A3 revisions. o Added R158 to allow isolation of drain pin on TPS2141. o Changed R120 to 0603 package to align with arts purchased. 2.2.1. o Added R160 and R155 as a possible future option. Resistor is not loaded on Revision A3. o Use of a universal Beagle XLoader and UBoot. No electrical difference. Page 17 of 164 . –xM Revision B The only change from Rev –A3 to the Rev B was the replacement of the processor form ES1.3 There were no major hardware feature changes between the Rev A2 and Rev A3 revisions. o Added 33 ohm resistor R157 in series with MMC clock line. Resistor was used on Rev A2.2 Software Changes Following are the changes to the SW. Electrical change from A2.0 MMC3 Expansion Header McBSP2 Expansion Header 2. No electrical difference. These will work on any Beagle made. Not used on board.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Yes Yes No No Revision C.0 to ES1. No electrical difference. –xM Revision A3 2. They include support for the 512MB DDR and the removal of the NAND from the –xM board.
GPIO171=0.1 to ES1. o Resistor loading was changed to allow for the reading of the Rev C revision by the SW.com/lit/er/sprz319a/sprz319a.ti. o Fixed capacitor footprint in the PCB layout.ti. o Changed the default power state of the USB HUB to OFF as an added layer of protection to make sure the USB power rails are off on initial power up. then the board is powered from the DC jack.5 There were seven changes made to the BeagleBoard-xM Rev C version over the Rev B design.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C. There are no issues resolved by ES1. This required a PCB footprint change.P pin LO to turn it on.0 please refer to http://focus. This will minimize the initial current drain on the board. o Redesigned the overvoltage protection circuit. ES1.pdf . –xM Revision C 2. GPIO_172=1. please refer to http://focus. If LO. and GPIO_173=0.6 Definitions Page 18 of 164 . For a detailed description of the issues present in the ES1. o Added the ability for the SW to detect when the board is powered from the DC supply or the OTG supply. Overall operation is the same as the original version with te exception that it is now possible to power the entire board over the USB OTG port. SW can turn on the HUB power as needed by setting the TPS65950 LEDA/VIBRA. The HUB will only work in the DC powered mode so this change allows the board to know not to try and initialize the USB Host when under OTG power.2 revision.2 that are anticipated to have any impact on the operation of the BeagleBoard-xM. Status is read from GPIO. –xM Revision B vs. 2.2 is the latest revision. The current part was targeted for EOL and a new one was required. There are no issues resolved by ES1. We were seeing issues with a small number of boards being damaged on the TPS2054 USB power FET..1 that are anticipated to have any impact on the operation of the BeagleBoard-xM. Care should be taken not to add high current devices on the USB ports as that will cause the host to shut down the USB port. so a new design was implemented. o Replaced the microSD connector with a new part. This includes the HUB. o Replacement of the processor from ES1.2.6 pin on the TPS65950.pdf .com/lit/er/sprz319a/sprz319a.1.
Secure Digital microSD. .The original version of the board based on the DM3530 BeagleBoard-xM.The newer version of the board based on the DM3730.Synchronous Dynamic Random Access Memory BeagleBoard.Small version of the standard SD card MDDR.0 SD.1. Page 19 of 164 .Mobile Dual Data Rate SDRAM.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C.
0 October 18. 2010 Page 20 of 164 .0 BeagleBoard-xM Rev B System Reference Manual Revision 0.1.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C.
By utilizing standard interfaces. Figure 1 is a picture of each of these versions. Please refer to the BeagleBoard System Reference Manual for information on that version. 3. Figure 1. The BeagleBoard is on the left and the BeagleBoard–xM is on the right. All of the design information is freely available and can be used as the basis for a product.org/hardware/design .1. It can be found at http://beagleboard.0 3. The Figure 1 shows pictures of the two different versions. the BeagleBoard is highly extensible to add many features and interfaces. the BeagleBoard and the BeagleBoard–xM. BeagleBoard and BeagleBoard-xM Page 21 of 164 .REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C. It has been equipped with a minimum set of features to allow the user to experience the power of the processor and is not intended as a full development platform as many of the features and interfaces supplied by the processor are not accessible from the BeagleBoard. This manual covers the revision A and B of the –xM version only.1 BeagleBoard Versions There are two different versions of the beagle in production.0 BeagleBoard Overview The BeagleBoard is designed specifically to address the Open Source Community. It is not intended for use in end products. BeagleBoards will not be sold for use in any product as this hampers the ability to get the boards to as many community members as possible and to grow the community.
0 4.0 OTG Port USB Host Ports Ethernet Audio Connectors SD/MMC Connector User Interface Video Camera Power Connector Overvoltage Protection Main Expansion Connector 2 LCD Connectors Auxiliary Audio Auxiliary Expansion Feature Texas Instruments Cortex A8 1GHz processor Micron 4Gb MDDR SDRAM (512MB) 200MHz Power Regulators Audio CODEC Reset USB OTG PHY GPIO Pins 14-pin JTAG UART 3 LEDs 6 layers 3. 1.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C.1" x 3.ADC.3V.1. Processor POP Memory PMIC TPS65950 BeagleBoard-xM Features Debug Support PCB Indicators HS USB 2.74 x 76.0" (78. Power Error USB Power PMU Mini AB USB connector TPS65950 I/F SMSC LAN9514 Ethernet HUB Up to 500ma per Port if adequate 4 FS/LS/HS power is supplied 10/100 From USB HUB 3.1 BeagleBoard Features Table 2 provides a list of the BeagleBoard's features.0 BeagleBoard Specification This section covers the specifications of the BeagleBoard and provides a high level description of the major components and interfaces that make up the BeagleBoard.HDQ Page 22 of 164 .8V) McSPI McBSP DVI-D Connector USB Power I2C MMC2 Access to all of the LCD control signals plus I2C 4 pin connector MMC3 GPIO PWM 3. 5V.5mm L+R out L+R Stereo In MicroSD 1-User defined button Reset Button S-Video Supports Leopard Imaging Module DC Power Shutdown @ Over voltage UART Power (5V & 1. 4.2mm) 2-User Controllable Power. Table 2.8V McBSP2 GPIO.5mm 3.
4mm pitch POP package.4 Power Management The TPS65950 is used on the BeagleBoard to provide power with the exception of a 3. POP (Package on Package) is a technique where the memory is mounted on top of the processor.2 Processor The BeagleBoard-xM processor is the DM3730CBP 1GHz version and comes in a . o Install a thumbdrive into one of the USB ports o Add a USB to Hard Disk adapter to one of the USB ports Support for these devices is dependent upon driver support in the OS.3V regulator which is used to provide power to the DVI-D encoder and RS232 driver and an additional 3. For this reason. you will not find an actual part labeled DM3730CBP. The key function of the POP memory is to provide: o 4Gb MDDR SDRAM x32 (512MB @ 166MHz) Unlike with earlier versions of the board. 4. but instead see the part number for the memory. 4.3 Memory There are two possible memory devices used on the –xM. It is possible however. that additional non volatile memory storage can be added to BeagleBoard by: o Accessing the memory on the uSD card o Use the USB OTG port and a powered USB hub to drive a USB Thumb drive or hard drive.1. In addition to the power the TPS65950 also provides: o o o o o Stereo Audio Out Stereo Audio in Power on reset USB OTG PHY Status LED Page 23 of 164 .REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C. no other memory devices are on the BeagleBoard.3V regulator to power the USB Hub. when looking at the BeagleBoard. The -00 assembly uses the Micron POP memory and the -01 uses the Numonyx POP memory.0 The following sections provide more detail on each feature and sections of the BeagleBoard. 4.
6 HS USB 2. Figure 2.0 OTG Port The USB OTG port can be used as the primary power source and communication link for the BeagleBoard and derives power from the PC over the USB cable.0 4. Care should be taken not to overload the USB ports as the total power supplied to the ports will not enable full power to all of the USB ports as you can have with the DC power. There are instances where the PC or laptop does not supply sufficient current to power the board as it does not provide the full 500mA. Figure 2 shows and example of the Y-Cable for the USB. 4. Page 24 of 164 .5 HS USB 2. USB Y-Cable The BeagleBoard requires a Y-Cable minAB to USB A cable or as mentioned a single cable can be used if the USB Hub is powered down or not loaded on all of the ports.0 Host Ports On the board are four USB Type A connectors with full LS/FS/HS support. Under this mode the USB HUB will now be powered based on the design changes made to the over volt circuitry. It is possible to take the current supplied by the USB ports to 1A by using a Y cable.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C. Each port can provide power on/off control and up to 500mA of current at 5V as long as the input DC is at least 3A. The ports will not function unless the board is powered by the DC jack. The client port is limited in most cases to 500mA by the PC.1. They cannot be powered via the OTG port.
This cable or adapter is not provided with the BeagleBoard. The audio CODEC is provided inside the TPS65950.9 S-Video Connector A 4 pin DIN connector is provided to access the S-Video output of the BeagleBoard.5mm standard stereo output audio jack is provided to access the stereo output of the onboard audio CODEC. The user must use a HDMI to DVI-D cable or adapter to connect to a LCD monitor. DO NOT PLUG IN THE DVI-D CONNECTOR TO A DISPLAY WITH THE BEAGLEBAORD POWERED ON.27mm pitch 2x10 headers are provided to gain access to the LCD signals. This is a separate output from the processor and can contain different video output data from what is found on the DVI-D output if the software is configured to do it.11 LCD Header A pair of 1. This is the standard LCD panel interface of the processor and will support 24b color output. 4. This allows for the creation of LCD boards that will allow adapters to be made to provide the level translation to support different LCD panels.0 4.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C. PLUG IN THE CABLE TO THE DISPLAY AND THEN POWER ON THE BEAGLEBOARD.5mm standard stereo audio input jack is provided to access the stereo output of the onboard audio CODEC. 4. 4. The BeagleBoard is equipped with a DVI-D interface that uses an HDMI connector that was selected for its small size. 4. Page 25 of 164 . It does not support the full HDMI interface and is used to provide the DVI-D interface portion only. The default is NTSC. but can be changed via the Software. DDC2B (Display Data Channel) or EDID (Enhanced Display ID) support over I2C is provided in order to allow for the identification of the LCD monitor type and the required settings. It will support NTSC or PAL format output to a standard TV.7 Stereo Audio Output Connector A 3. A standard HDMI cable can be used when connecting to a monitor with an HDMI connector.8 Stereo Audio In Connector A 3.1.10 DVI-D Connector The BeagleBoard can drive a LCD panel equipped with a DVI-D digital input.
REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C.1. As there is no NAND boot option on the board. If this LED ever turns on. 4. o One to indicate that power is applied to the onboard USB HUB and can be controlled via the SW. If you press this button on power up.0 4. please remove the power connector and look for the correct power supply in order to prevent damage to the board. There is also one red LED on the BeagleBoard that provides an indication that the power connected to the board exceeds the voltage range of the board. It is can be used by the UBoot SW to switch between user scripts to allow different boot configurations to be selected as long as that feature is included in the UBoot used.13 Reset Button When pressed and released. This replaces the 6 in 2 SD/MMC connector found on the BeagleBoard.15 Indicators There are five green LEDs on the BeagleBoard that can be controlled by the user. the board will not boot properly. 4. When the wall supply is plugged in.12 microSD Connector A single microSD connector is provided as a means for the main non-volatile memory storage on the board.14 User Button A button is provided on the BeagleBoard to be used as an application button that can be used by SW as needed. this button is no longer needed to force an SD card boot. 4. The power supply is not provided with the BeagleBoard. o One on the TPS65950 that is programmed via the I2C interface o Two on the processor controlled via GPIO pins o One Power LED that indicates that power is applied and can be turned off via SW. Page 26 of 164 . it will remove the power path from the USB connector and will be the power source for the whole board. causes a power on reset of the BeagleBoard. A wall supply 5V can be plugged into the DC power jack fro full access to all functions of the board. 4.16 Power Connector Power can be supplied via the USB OTG connector for some application that does not require the USB Host ports.
a RED LED will turn on. 3MP. Unlike on the original version of the Beagle. This connector is populated on the board and is ready for the camera module to be installed. Make sure the DC supply is regulated and a clean supply. Page 27 of 164 . 4. If the power is over the voltage specification. a straight through non null modem cable is required. 4. For proper operation of the cameras. The cable you used on the BeagleBoard will NOT work on the –xM version. 2MP. A USB to Serial cable can be plugged directly into the Beagle. This header is populated on each board. The 100mA is a function of the OTG port itself.20 Camera Connector A single connector has been added to the BeagleBoard–xM board for the purpose of supporting a camera module. The supported resolutions include VGA. Due to multiplexing. The camera module does not come with the board but can be obtained from Leopard Imaging.0 When using the USB OTG port in the host mode.8V Levels are supported.1. This will prevent the power from actually making it to the circuitry on the board and will stay on as long as the power exceeds the voltage specification. 4. so the hub must be powered. 4. Only 1. and 5MP camera modules.8V on all signals.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C.19 Main Expansion Header A single 28 pin header is provided on the board to allow for the connection of various expansion cards that could be developed by the users or other sources.18 RS232 DB9 Connector Support for RS232 via UART3 is provided by DB9 connector on the BeagleBoard for access to an onboard RS232 transceiver. The 100mA is not impacted by having a higher amperage supply plugged into the DC power jack. different signals can be provided on each pin. A standard male to female straight DB9 cable may be used or you can use a USB to serial adapter that will plug directly into the board without the need for any other cables. The interface is at 1. the correct SW drivers are required. the DC supply must be connected as the USB port will be used to provide limited power to the hub at a maximum of 100mA.3V.17 JTAG Connector A 14 pin JTAG header is provided on the BeagleBoard to facilitate the SW development and debugging of the board by using various JTAG emulators. DO NOT expose the JTAG header to 3.
4.22 McBSP Expansion Header A 4 pin connector is provided to allow access to the McBSP2 signals for audio applications.21 MMC3 Expansion Header New to the BeagleBoard-xM is a 20 pin connector provided to allow access to additional signals including GPIO and the MMC3 port. the audio interface on the TPS65950 must be disabled by the SW.35" x 3.23 BeagleBoard Mechanical Specifications Size: 3.062" RoHS Compliant: Yes Weight: TBW Page 28 of 164 . In order to use these signals.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C. This connector is populated on the board.0 4.45" Max height: TBM Layers: 6 PCB thickness: . 4.. This connector is populated on the board.1.
7 3 -3.5 1.24 Electrical Specifications Table 3 is the electrical specification of the external interfaces to the BeagleBoard-xM Rev C.4 7 30 30 30 30 Kohms MHz MHz MHz MHz V V mA MHz MHz 1.8 3.0 1.5 +/-60 V V mA Kbit/S V .4 -5. Table 3.8 1.8V) Current USB Host (Same as the DC supplied by the power plug or USB 5V) Current (Depends on what the DC source can supply over what the board requires) Maximum current supplied by all four USB Host ports Total USB OTG High Speed Mode Full Speed Mode Low Speed Mode USB Host High Speed Mode Full Speed Mode Low Speed Mode RS232 Transmit High Level Output Voltage Low Level output voltage Output impedance Maximum data rate Receive High level Input Voltage Lo Level Input Voltage Input resistance JTAG Realview ICE Tool XDS560 XDS510 Lauterbach(tm) microSD Voltage Mode 1.85 30 5.75 4.1.8 mA Mb/S Mb/S Mb/S Mb/S Mb/S Mb/S 5 -5 +/-35 250 -2.2 5 5.2 1.5 480 12.5 5.71 2.8V Voltage Mode 3.2 5.89 220 48 25 65 Page 29 of 164 .8 4. BeagleBoard Electrical Specification -xM Rev C Specification Power Input Voltage USB Current USB Input Voltage DC Current DC Max Voltage without damage Expansion Voltage (5V) Curent (Dépends on source curent available) Expansion Voltage (1.7 1.8 5 Varies 1500 480 12.5 1.0V Current Clock DVI-D Pixel Clock Frequency 5 350 5 750 5 750 1.0 4.2 12 5.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C.2 V mA V mA V V A V mA V Min Typ Max Unit 4.
02 kHz) 2 0 Hz to 20 kHz. A-weighted audio.53 Vrms differential output voltage and load impedance = 16 Ohms) Peak-to-Peak output voltage Total Harmonic Distortion @ 0 dBFs Idle channel noise (20Hz to 20KHz) Environmental Temperature range 600 1024 x 768 .88 50 75 1 82.5 -75 -78 V mVp-p .5 1.02 kHz @ -1 dBFs) Total harmonic distortion (sine wave @ 1.7 67.1.56 1.5 V mV Ohms Vpp dB dB -80 -85 14 16 17.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual 3.5 -75 -85 +85 ohms mW Vpp dB dB C -80 -90 0 Page 30 of 164 .0 High level output voltage Swing output voltage Maximum resolution S-Video Full scale output voltage (75ohm load) Offset voltage Output Impedance Audio In Peak-to-peak single-ended input voltage (0 dBFs) Total harmonic distortion (sine wave @ 1. Gain = 0 dB Audio Out Load Impedance @100 pF Maximum Output Power (At 0.3 400 Revision C.
1 BeagleBoard In the Box The final packaged -xM Rev C product will contain the following items: o 1 Box with the following items inside: o 1 BeagleBoard in an ESD Bag o 1 uSD card o 1 uSD Card to MMC Adapter NO CABLES ARE PROVIDED WITH THE BEAGLEBOARD.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C. 5.1.0 Product Contents Under this section is a description of what comes in the box when the BeagleBoard is purchased. The -xM Rev C Box Page 31 of 164 .0 5. Figure 3.
REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C.3 Repairs If you feel the board is in need of repair. -xM Rev C Box Contents 5. follow the RMA Request process found at http://beagleboard. It contains all of the code required for the board to boot to an Angstrom validation image.1. Page 32 of 164 . The BeagleBoard–xM does come with a 4GB microSD card that the board boots from.org/support/rma Do not send the board in for repair until a RMA authorization has been provided. It can also be used to boot to UBoot by hitting a key during the booting process before it reads the UImage. You will see a login prompt but no GUI will be visible. 5.0 Figure 4.2 Software on the BeagleBoard There is no NAND flash memory on the board so no SW is preinstalled on the board as it is on the BeagleBoard.
Page 33 of 164 . You can power the board from this port. you should be able to power the board with minimal issues as long as you do not load down the USB Host ports with heavy current devices. monitors. such as the USB Host ports and the Ethernet Port.0 BeagleBoard Connections This section provides an overview of all of the connectors on the BeagleBoard-xM. but there may not be enough power supplied by the PC to power all features. Beagleboard. PC equipment. This will depend on the current available from the HOST PC.org does not handle refunds.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C. the ID pin must be grounded. and any other add-on component or device meets the FCC Part 15 requirements. The user is responsible for compliance with this statement. If you use the double ended USB cable.1 Connecting USB OTG The USB OTG port connects to the PC host and uses a miniAB cable through which power can be provided to the BeagleBoard. Care should be taken to insure that all add-on boards. Any changes or modifications to this board that causes the board to no longer comply with the FCC Part 15 requirements voids the user's rights to use this system.0 Do not return the board to the distributor unless you want to get a refund. You must get authorization from the distributor before returning the board. 6. 6. There is also an option to ground the ID on the board and is discussed later in this document. power supplies. This means that you must have a 5 pin cable connected to the OTG port on the BeagleBoard and you must use a powered USB HUB. Only the use of FCC Part 15 approved devices in the BeagleBoard-xM installation is allowed.1. Figure 5 shows where the cable is connected to the BeagleBoard. If the OTG Port is to be used as a Host.
0 Figure 5.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C. USB OTG Connection Page 34 of 164 .1.
1. Figure 6 shows the location of the USB Host connectors.0 6.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C.2 Connecting USB Host The Beagle is equipped with 4 USB Host connectors. Figure 6. USB Host Connection Page 35 of 164 .
You need to make sure the supply is a regulated 5V supply. It is required that on the BeagleBoard-xM board that an external power supply used if the USB Host is to be used.3 Connecting DC Power A DC supply can be used to power the BeagleBoard by plugging it into the power jack. you must have an external DC supply powering the BeagleBoard. Figure 7.D x 5. The power supply is not provided with the BeagleBoard. If you are using the USB OTG port in the OTG or host mode.5mm O.D. Figure 7 shows where to insert the power supply into the power jack.0 6. Page 36 of 164 .1. x 9. turning on a red LED. but can be obtained from various sources. DC Power Connection The power supply must have a 2.5mm and can be either straight or right angle.1mm I.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C. The board will not function until the correct power supply is used. Connecting anything other than 5V will activate the over voltage circuitry.
BeagleBoard JTAG Connection DO NOT expose the JTAG header to 3.4 Connecting JTAG A JTAG emulator can be used for advanced debugging by connecting it to the JTAG header on the BeagleBoard. It supports 1.0 6.3V.1. There is no overvoltage protection on these pins and the pins connect direct to the processor.8V only.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C. Only the 14pin version of the JTAG is supported and if a 20pin version is needed. Figure 8 shows the connection of the JTAG cable to the BeagleBoard. Figure 8. the board will be damaged beyond repair and the board will NOT be replaced under any circumstances Page 37 of 164 . If you do this. you will be required to contact your emulator supplier for the appropriate adapter to be supplied by that manufacturer.
1. The configuration of the DB9 is such that a USB to serial adapter can be plugged direct into the Beagle connector.0 6. BeagleBoard Serial Cable Connection If you are using a standard serial port on the PC. New to the BeagleBoard-xM version is the removal of the 10 pin header and the addition of a female DB9 connector. Figure 9 shows where the serial cable is to be installed.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C. No null modem cable is required. Page 38 of 164 .5 Connecting Serial Cable In order to access the serial port of the BeagleBoard a serial cable is required. The cable used on the BeagleBoard will not work on the BeagleBoard–xM board. a straight through male to female cable is required. Figure 9.
This cable is not supplied with the BeagleBoard.6 Connecting S-Video An S-Video cable can be connected to the BeagleBoard and from there it can be connected to a TV or monitor that supports an S-Video input. Figure 10. Figure 10 shows the connector for the S-Video cable.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C.0 6.1. BeagleBoard S-Video Connection Page 39 of 164 .
0 6. PLUG IN THE CABLE TO THE DISPLAY AND THEN POWER ON THE BEAGLEBOARD. a HDMI to DVI-D cable is required. This cable is not supplied with BeagleBoard but can be obtained through numerous sources. BeagleBoard DVI-D Connection DO NOT PLUG IN THE DVI-D CONNECTOR TO A DISPLAY WITH THE BEAGLEBAORD POWERED ON.7 Connecting DVI-D Cable In order to connect the DVI-D output to a monitor. Figure 11 shows the proper connection point for the cable. Page 40 of 164 .1.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C. Figure 11.
Figure 12.5mm jack. Figure 12 shows where the cable connected to the stereo out jack.0 6. The audio cables are not provided with the BeagleBoard-xM. BeagleBoard Audio Out Cable Connection Page 41 of 164 . but can be obtained from just about anywhere.1.8 Connecting Stereo Out Cable An external Audio output device.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C. such as external stereo powered speakers. can be connected to the BeagleBoard via a 3.
BeagleBoard Audio In Cable Connection Page 42 of 164 .9 Connecting Stereo In Cable External Audio input devices. The audio cables are not provided with the board. Figure 13. can be connected to the BeagleBoard-xM via a 3.0 6.5mm jack. Figure 13 shows where the cable is connected to the stereo input jack.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C. such as a powered microphone or the audio output of a PC or MP3 player. but can be obtained from several sources.1.
Page 43 of 164 . Figure 14 shows the location of each indicator. BeagleBoard Indicator Locations POWER indicates that power is applied to the board. Figure 14.0 6. VOLT will turn on when the DC voltage exceeds specification HUB turns on when power is applied to the USB HUB.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C. Each indicator will be described in more detail later in this document. USR0/1 can be used by the SW as needed PMU is controlled from the power management chip and can be connected to a PWM.1.10 Indicator Locations There are five green and one red indicator on the BeagleBoard.
If you do press the User Button on power up. the board will not boot. the RESET button when pressed will force a board reset and the USER button which can be used by the SW for user interaction. Page 44 of 164 .1.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C. Figure 15 shows the location of the buttons. Figure 15.0 6.11 Button Locations There are two buttons on the BeagleBoard-xM. BeagleBoard Button Location The User button does no affect the boot source of the board as is the case on the BeagleBoard version.
12 microSD Connection The microSD is the boot source for the board. Figure 16.1.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C. Figure 16 shows the location of the microSD connector. BeagleBoard microSD Card Location The microSD card should be inserted with the writing on the card facing up. The white silkscreen area on top of the board works as a guide to align the card for insertion. The connector is mounted on the bottom side of the board. Page 45 of 164 . It uses a push-push connector for the insertion and removal of the microSD card.0 6.
Figure 17 shows the location of the LCD headers on the board. Page 46 of 164 .REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C. Figure 17.1.05 (1. BeagleBoard LCD Header Location Adapter boards are becoming available for such things as LCD panels and VGA adapters.0 6.27mm) pitch.13 LCD Connection There are two headers provided to access the LCD signals on the BeagleBoard-xM. it is difficult to design an interface that will work with all LCD panels. As different LCD panels have different requirements. That is the reason only the raw signals are brought out on these headers. These headers are 2x10 headers with a spacing of . How these connectors are used is determined by the design of the adapter board that is connected to them.
1.1 System Block Diagram Figure 18 is the high level block diagram of the BeagleBoard-xM. 7. BeagleBoard-xM High Level Block Diagram Figure 19 shows the location of the key components on the board. Page 47 of 164 . Figure 18.0 7.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C.0 BeagleBoard-xM System Architecture and Design This section provides a high level description of the design of the BeagleBoard-xM and its overall architecture.
o The pin names differ from the actual schematic. You will notice certain things in this section. BeagleBoard Major Components The information found in the remainder of this section describes in detail the architecture and design of the BeagleBoard-xM. For ease of reading. o The schematic has been created for each section showing only the pertinent components and their connections. the names have been truncated to only show the specific functions of that pin as used in the design.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C. Page 48 of 164 .1.0 Figure 19.
up to 28V. This is useful to allow the SW to determine that if in the OTG power mode. The NCP349 provides a FLAG output. The design of this circuit has been changed on the Rev C version of the board and is much simpler and more affective. The board will not power up if the voltage is in excess of the 5. a red LED. This was the reason for the circuit design change. connecting power via the OTG port provided 5V to the DC_5V rail which Page 49 of 164 47k Figure 20.8V max level. A low NMOSFET protects the systems connected on the OUT0/1 pins against positive overvoltage. making sure that the voltage is not connected to the USB power FET. Also new for the Rev C is the ability to power the HUB for the USB OTG port. the output is delayed before it is turned on to insure that the voltage is not in excess of 5. We were seeing a small number of boards that still had this device sustaining damage. with EN pin = low.5MM VIO_1V8 VIO_1V8 R138 R144 R131 10K 7 1 6 10K 6 nDC_PWR 10K Q2A RN1907 U33 IN0 IN1 OUT1 OUT0 5 4 3 DC_5V_USB 6 IN0 IN1 OUT1 OUT0 5 4 R121 3 510 DC_IN D13 LTST-C150CKT RED GND 2 GND EN FLAG NCP349MNAE EN FLAG 10k On powerup.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C.8V. Figure 20 is the diagram of the circuitry design. is the ability to detect when the board is DC powered by reading the nDC_PWR signal. The NCP349 provides overvoltage protection for positive voltage. USB Host circutry power is OFF. which alerts the system that a fault has occurred by turning on D13.0 7. The primary function of this circuit it to prevent voltage levels in excess of the specification from reaching other circuitry on the board and causing damage to the board. New to the Rev C as well. Also new in the REV C is the fact that the USB 5V defaults to off. DC_IN DC_5V U31 7 1 P2 2 3 1 CONN_PWR1_2. Having this default to off provides an additional level of protection. As U31 is always on. 2 6 nUSBHOST_PWR_EN 6 1 These functions are controlled by the NCP349 device.1.2 Over Voltage Protection A new feature found on the BeagleBoard–xM board is the overvoltage protection circuit. that the USB Host ports are not available. Overvoltage Protection 2 NCP349MNAE . At power up.
1. Figure 21 is the design of the main power input section.0 in turn will supply power to the DC in rail which can then be used to power the HUB as long as U33 is enabled. It is recommended that a DC supply be used. then the DC supply must also be used.3 Power Conditioning There are two possible sources of the 5V required by the BeagleBoard. Page 50 of 164 . The USB supply is sufficient to power the BeagleBoard in most as long as you understand that the USB Host ports will not function.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C. If the OTG port is used as a Host port. 7. It can come from the USB OTG port connected to a PC or a 5V DC supply. for example tying two BeagleBoards together via a UBS OTG cable. It should also be noted that if an OTG configuration is used. both of the BeagleBoards must be powered by the DC supply.
2 NCP349MNAE Page 51 of 164 . while keeping the inrush current low.3. The TPS2141 is a USB 2.5MM 5 SW_EN SW_IN SW_IN SW_OUT SW_OUT SW_PLDN GND PPAD 8 G5 VB DD+ ID G1 G3 6 10 11 9 8 13 12 14 1 SW_PG 7 15 TPS2141PWP DC_5V U34 7 1 6 IN0 IN1 GND OUT1 OUT0 FLAG 5 4 3 EN Figure 21.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C. Both the switch and LDO limit inrush current by controlling the turn on slew rate.0 Specification-compatible IC containing a dual-current limiting power switch and an adjustable low dropout regulator (LDO). The dual-current-limiting feature of the switch allows USB peripherals to utilize high-value capacitance at the output of the switch.1 USB DC Source The USB specification requires that the current consumed prior to enumeration be limited to 100mA @ 5V (500mW). The 5V DC from the USB is routed through the TPS2141 switch to insure that this requirement is met as uncharged capacitors on the BeagleBoard can exhibit a large current drain during start up that could exceed this requirement.1. Input Power Section 7.0 mini USB-AB 7 G2 G4 9 VBUS_5V0 1 2 3 4 5 P20 U6 4 LDO_IN LDO_PLDN LDO_OUT 6 LDO_EN ADJ LDO_PG 3 2 P21 2 3 1 CONN_PWR1_2.
In the event that a higher DC load is required due to the addition of a Daughtercard or if all the USB host ports need to supply the full 500mA per port.3. There is a signal called nUSB_POWER which if a logic level "1" (5V) indicates that there is 5V supplied by the USB OTG port. It is possible to provide 5V via the expansion connectors as would be the case from a daughter card to prevent you from having to have two DC supplies. This insures that the 5V from the USB is not connected by disabling the internal FET.1mm plug with a center hot configuration. the current limiting is not required. in the case of the DC voltage. the switch is disabled because the ground is removed from pin 5 of the TPS2141. If this signal is low.2 Wall Supply Source A wall supply can be used to provide power to the board. and the DC dummy jack is installed.3 DC Source Control Unlike when powering from the USB OTG port. a powered hub must be used to support peripherals on the OTG port. you will need to place an unconnected connector into the DC power jack to insure that the DC from the OTG port is not shorted to the 5V supplied via the expansion connector. When in the DC mode of operation. If you are using the USB HUB or Ethernet interface. You should be careful in doing this. 7. additional current is required. The maximum current should not exceed 3A. The TPS65950 will be responsible for handling the supply of the VBUS_5V0 rail in the OTG or Host modes. a higher current supply can be used. A regulated 5V DC supply of at least 2A is required and a rating of 3A is preferred.1. the TPS2141 is enabled. the switch limits the current delivered to the capacitive load to less than 100 mA. As long as the DC supply is not connected. When the DC supply is plugged in. assuming that the USB ports and expansion headers are likely to be used. It needs to have a 2. the switch current limit increases to 800mA (minimum). This condition could be used on the daughtercard to know that it is OK to supply power onto the expansion bus to power the board. it is plugged in.3. the USB OTG can be used in the Host or Client modes.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C. In the case where there is no USB plugged in. there is no 5V available to be routed so the removal of the pullup in pin 5 has no affect. As this is limited to 100mA. The higher current limit provides short circuit protection while allowing the peripheral to draw maximum current from the USB bus. When in the USB powered mode and no DC supply is connected.0 During turn on. allowing the power to be supplied to the board from the OTG port through the integrated switch inside the TPS2141. When the output voltage from the switch reaches about 93% of the input voltage. the switch for the USB is enabled. then that indicates that there is no Page 52 of 164 . 7. at which point higher current loads can be turned on. If you plan to use the USB OTG port.
The 3. This means that in order to power the board from the expansion headers. the user chooses to turn of the power LED.4 AUX 3. that the 3.0603 5 10K 6 1 U18A POWER R12 2 SN74LVC2G06DCKR SW_EN GND PPAD 7 15 SW_PG TPS2141PWP U7A TPS65950 GPIO. You will also see that the 3. The input to the LDO is supplied by the main DC_5V.0 DC power connected and there is no USB OTG port connected.3V LDO which is being used to supply the 3. is recommended however.1uF. By default the voltage is on.3.10V GRN PWRLED_R 4. It is always possible that at any point a USBOTG cable could be installed.1.3V as required on the BeagleBoard for the DVI-D interface and the UART. the DC dummy jack must be installed and there is a method to verify that condition.0603 3V3_ADJ R10 C207 R9 D5 LTST-C190GKT VIO_1V8 C204 0.TMS N12 R54 10K Figure 22.1%. D5.1%. AUX 3.3V Supply design.3V. If during a low power mode. VBAT AUX_3V3 R8 U2 4 LDO_IN LDO_PLDN LDO_OUT 6 LDO_EN ADJ LDO_PG 10 11 9 8 200K.3V rail controls the serial port power.3V Supply The TPS2141 has an integrated 3. 7.7uF.3V supply. For this reason. This insures that the power to the LDO can be supplied by either the USB or the DC wall supply and that the current measurement includes the 3.3 Power Section Page 53 of 164 . so this will be powered down as well. It should also be noted. that a large pullup be provided on the daughtercard to make the signal a logic level "1" (5V) to detect the true state of the DC jack.6. Figure 22 is the AUX 3. this GPIO pin can be used to turn off the power LED.0603 3 2 SW_IN SW_IN SW_OUT SW_OUT SW_PLDN 5 13 12 14 1 330 620K.3V supply powers the power LED.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C.1/CD2/JTAG.3V supply can be turned off by activating GPIO1 on the TPS65950 to a 1.
1x.1% 0.6.0805.3V TL1963A R49 12K.1 R13 . The maximum value that can be input to the ADC inputs is based on the setting of the VINTANA2.10V 10K. These values along with resistance of R13 are used to calculate the current consumption of the board. USB ports.1uF. Figure 24 is the schematic of the measurement circuitry.1% R48 12K.2K. for a maximum value of 5. There are two pairs of resistors provided on the TPS65950 that measure the voltage on either side of R13. The voltage drop across R13 will be small as the value of the resistor is 0.10V VBAT_MAIN J2 1 + 2 C5 C7 0.1% C84 R53 0.1.0805 10uF.1uF.25V.1uF.2V SHDN GND GND ADJ HDR2_. So.5 Processor Current Measurement The resistor across J2 can also be used to measure the current of the board by reading the voltage drop across R13 from software. is a .4 Meter Current Measurement Jumper J2 is a header that allows for the voltage drop across the resistor to be measured using a meter. R13. You will need to make sure you have a sensitive meter to make your measurements. The resistor.0 7. This is done via the I2C control bus to the TPS65950 from the processor.1. Please keep in mind.1% C83 U7A TPS65950 N11 P11 ADCIN5 ADCIN3 R52 10K.1mV per mA of current.5V.415V which keeps it below the 2. either USB or DC.1 ohms. For every 100 mA of Page 54 of 164 .1 ohm resistor across which the voltage is measured.10V VBAT 4. providing a way to measure the current consumption of the BeagleBoard from the main voltage rails. 7.OUT voltage rail which defaults to 2.6K. DC_5V U3 2 1 3 IN OUT 4 6 5 VBAT_FB R14 56.CER. The reading you get is .5V point.1% R15 22. Processor Current Measurement This results in a value that is 46% of the actual value. that this current reading does not include any current consumed by the USB HUB.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C. or the Expansion headers.1% RTSO/CLK64K/BERCLK/ADCIN5 CTSI/BERDATA/ADCIN3 Figure 23. the voltage read would be 2. In order to prevent the voltage levels from exceeding this value a pair of resistors of 12K and 10K is used to scale the voltage down.
In order to determine the actual power.1. the input voltage and the voltage drop must be measured.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C. Page 55 of 164 .01V will be detected.0 current a voltage of .
The TL1963A is a linear low-dropout (LDO) voltage regulator and is thermal shutdown and current limit protected.6K. Included in this section are: o o o o Main Core Voltages Peripheral Voltages Power Sequencing Reset Page 56 of 164 .3V C7 0. It has the ability to deliver 1A of current.0805.1% J2 4.10V SHDN GND GND ADJ HDR2_.6 VBAT Power Conditioning This circuitry regulates the DC input to a nominal 4.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C.1 R13 . Using 4.1uF.1. 7.2V to meet this requirement.2K.1. This is required in order to meet the maximum DC voltage level as specified by the TPS65950 Power Management device which is 4.2V. Figure 25 is the power conditioning section of the BeagleBoard. U3.0 7.7V. which can come from a DC wall supply or the USB. the TL1963A.1x. VBAT Power Conditioning The TPS65950 provides the main power rails to the board and has a maximum limit of 4.6. is used to convert the DC_5V.7 TPS65950 Reset and Power Management The TPS65950 supplies several key functions on the BeagleBoard.7V on its VBAT input and a nominal of 4.2V rating of the TPS65950. although this is far and above the requirements of the board.0805 TL1963A Figure 24.2V 1 + 2 C5 10uF. to 4. This section covers a portion of those functions centered on the power and reset functions. By adjusting the values of R14 and R15. the actual voltage can be adjusted if needed. VBAT_MAIN DC_5V VBAT U3 2 1 3 IN OUT 4 6 5 VBAT_FB R14 56.2V gives us some margin and meets the nominal 4.2VDC level.CER.1% R15 22.
7. When the VSEL bit is set to 0.3V level. 7.2V at power up.4 VIO_1V8 The VIO_1V8 rail is generated by the TPS65950 VIO regulator.80 V. the output voltage is 1.1. 7.0 o Current measurement via SW The other functions are covered in other sections in this document and are grouped by their overall board functions.1uF cap is also provided for high frequency noise filtering. The voltage is set by configuring the VSEL bit (VIO_VSEL[0]). 7.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C. I2C_0 is used to control the TPS65950 device.7. Figure 26 is the interfacing of the TPS65950 to the system as it provides the three main rails.85 V.2V. VIO can be put into sleep or off mode by configuring the SLEEP_STATE and OFF_STATE fields of the VIO_REMAP register.8V. A .3V) VIO_1V8 (1. the default value of this LDO is 1.7.3 Processor I2C Control The various components in the TPS65950 are controlled from the processor via the I2C interface. the output voltage is 1. This regulator output is used to supply power to the system memories and I/O ports. When the TPS65950 resets. Each rail has a filter cap of 10uF connected to each of the three inputs. Page 57 of 164 . Please refer to the TPS65950 documents for a full explanation of the device operation. The explanation of the various regulators found on the TPS65950 is based upon how they are used in the board design and are not intended to reflect the overall capability of the TPS65950 device.2V.85 V.1 Main Core Voltages The TPS65950 supplies the three main voltage rails for the processor and the board: o o o VDD1 (1.7.8 V or 1. It is one of the first power supplies to be switched on in the power-up sequence.8V) The VOCORE_1V3 defaults to 1. adjustable) VDD2 (1.85 V.8 V. The default for the BeagleBoard is 1. but can be adjusted by software to the 1.2 Main DC Input The main supply to the TPS65950 for the main rails is the VBAT rail which is a nominal 4. VIO does not support the SmartReflex voltage control schemes. the processor must write 1 to the VSEL field to change the output to 1. and when it is set to 1. 7. The VIO output is a stepdown converter with a choice of two output voltage settings: 1.
CER.6.IN VDD2.1uF.0805.3V 0.1uF.GND 10uF.6.CER.0603 0.LM3010 T2_VDD2.IN VDD1.CAPP CP.CER.10V 10uF.7uF.1.2A.IN VDD1.0805. Main Power Rails Page 58 of 164 .LM3015 C111 T2_VDD1.0805.SDA nSLEEP1 nSLEEP2 IO_1P8 4.3V.C.FB VDD2.0 U7B TPS65950 Power control 4 4 4 I2C4_SCL I2C4_SDA nSLEEP VBAT F8 D6 B14 C4 P7 G9 VMODE1(VDD1) VMODE2(VDD2)/I2C.6.IN VDD2.GND 10uF.0603 MEM_1V8 C139 C140 C189 0.10V R66 R67 0.0603 C105 CP.10V 1 2 1uH.6.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual VBAT R1 10K 8 REGEN A10 REGEN VBAT Revision C.L VDD2.CER.GND VDD2.L VIO.CAPM T6 R6 VBAT D14 E14 E15 L4 E13 2 1uH.CAPP C106 2.6./I2C.2uF.GND USB CP CP.OUT VIO.3V 10uF.2A.IN VIO.L VDD1.L VDD1.GND VDD1 VDD1 1 C110 C112 0.C.L P3 R4 N3 R3 T4 VIO.0805.OUT VDD1.3V R7 T7 CP.6.SR.0805.6.6.3V C117 C118 10uF.CER.SCL N.L C14 D15 D16 B15 C15 C16 VDD1.0805.1uF.CAPM CP.L VDD1.6.CER.L VIO.3V 10uF.LM3015 C136 C138 C132 R2 T3 T2_VIO.IN VDD1.3V VBAT VDD2 VDD2 L5 0.6.GND VIO.3V VBAT VIO VIO_1V8 L6 1 2 1uH.IN VIO.GND VDD1.1uF.L C119 10uF.CER.3V Figure 25.0805.CER.GND VDD1.3V T14 R15 R13 P14 N13 T13 R14 VDD2.IN CP.0805.SR.L VDD2.10V 10uF. N.
7. The MODE field of the VDD1_SR_CONTROL register can be set to 0 to put VDD1 in an ACTIVE state. The output voltage of the VDD1 regulator can be scaled by software or hardware by setting the ENABLE_VMODE bit (VDD1_VMODE_CFG[0]).REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C.6 V and 1. The VDD1 output voltage is given by VSEL*12.1. depending on the value of the STEP_REG field of the VDD1_STEP[4:0] register. the sleep mode output voltage of VDD1 equals the floor voltage that corresponds to the VFLOOR field (VDD1_VFLOOR[6:0]).5 mV. This regulator is used to power the processor core. 7.5 Main Core Voltages Smart Reflex VDD1 and VDD2 regulators on the TPS65950 provide SmartReflex-compliant voltage management. the TPS65950 provides the VDD1_SR_CONTROL register. VDD1 can be configured to the same output voltage in sleep mode as in active mode by programming the DCDC_SLP bit of the VDD1_VMODE_CFG[2] register to 0.6 VDD1 The VDD1 rail is supplied by the VDD1 regulator of the TPS65950. To perform VDD1 voltage control through the SmartReflex interface.7. Apart from these modes. When the DCDC_SLP bit is 1. In each of these modes. SmartReflex control of the VDD1 and VDD2 regulators can be enabled by setting the SMARTREFLEX_ENABLE bit (DCDC_GLOBAL_CFG[3]) to 1. The default output voltage at power-up depends on the boot mode settings.7. the VDD1 output voltage can also be controlled by the processor through the SmartReflex I2C interface between the DM3730 and the TPS65950. the output voltage ramp can be single-step or multiple-step. Regardless of the mode used.45 V in steps of 12.5 mV + 600 mV.7 VDD2 The VDD2 voltage rail is generated by the TPS65950 using the VDD2 regulator. The processor can request the TPS65950 to scale the VDD1 output voltage to reduce power consumption. The VOCORE_1V3 rail should be set to 1. VDD1 output voltage can be programmed by setting the VSEL field of the VDD1_SR_ CONTROL register. The VDD2 regulator is a stepdown converter with a configurable output voltage of between Page 59 of 164 . The SmartReflex controller in the processor interfaces with the TPS65950 counterpart through the use of a dedicated I2C bus.7. The default voltage scaling method selected at reset is a software-controlled mode.0 7. which in the case of the BeagleBoard is 1. The VDD1 regulator is a 1. The processor computes the required voltage and informs the TPS65950 using the SmartReflex I2C interface.1A stepdown power converter with configurable output voltage between 0. setting the field to 1 moves VDD1 to a SLEEP state.3V after boot up.2V.
3 V. When VDD2 is controlled by the VMODE2 signal or with the SmartReflex interface. When the VDD2 is used in software-control mode. and VDD2_ROOF registers is similar to the use of the corresponding signals and registers for VDD1. VDD2_STEP. the VSEL (VDD2_ DEDICATED[4:0]) field can be programmed to provide output voltages of between 0. based on the value of the VSEL field (VPLLI_DEDICATED[3:0]).REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C. Page 60 of 164 .0 0. 1.6 V and 1.2 V.45 V. VDD2_FLOOR.6 V to 1. 7.45 V. The VDD2 provides different voltage regulation schemes.1 VDD_PLL2 This programmable LDO is used to power the processor PLL circuitry. On the board this rail is used to power DVI output for pins DSS_DATA(0:5). 7.5 mV + 600 mV. The output voltage for a given value of the VSEL field is given by VSEL*12. The use of the VMODE2 signal and the VDD2_VMODE_CFG. the range of output voltage is 0.0 V. the TPS65950 sets the VDD2 output voltage to 1.5 V.8V for proper operation of the DVI-D interface.8. These are: o o o o o o o o o o VDD_PLL2 VDD_PLL1 VDAC_1V8 VDD_SIM VMMC2 VDD_VMMC1 CAM_2V8 CAM_1V8 USB_1V8 EXP_VDD Figure 27 shows the peripheral voltages supplied by the TPS65950. 1.6 V and 1. The VDD2_SR_CONTROL register is provided for controlling the VDD2 output voltage in SmartReflex mode. VDD2 differs from VDD1 in its current load capabilities with an output current rating of 600 mA in active mode.1. The VPLL2 must be set to 1. VDD2 shares the same SmartReflex I2C bus to provide voltage regulation. DSS_DATA(10:15) and DSS_DATA(22:23).8 Peripheral Voltages There are 10 additional voltages used by the system that are generated by the TPS65950.45 V.45 V and is used to power the processor core. The VPLL2 LDO can be configured through the I2C interface to provide output voltage levels of 1. If the VSEL field is programmed so that the output voltage computes to more than 1. or 1.8 V.
8 V in on power mode.10V 2.RIGHT VBAT.10V C124 1uF.10V C114 1uF.1.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C.10V C123 1uF.1uF. linear regulator used for the processor PLL supply.6.IN VAUX12S VPLLA3R VINT A3 C1 B2 R9 K1 L1 H15 K15 C113 1uF.10V VPLL2 VPLL1 VDAC.LEFT VBAT. or 1.10V BKBAT IO.10V C125 1uF.OUT VMMC1.3 VDAC_1V8 The VDAC programmable LDO regulator is a high-PSRR.CER.0603 T2_VPRECH VBAT C104 0.10V C126 1uF. It is controllable with registers via I2C and can be powered down if needed.1uF.USB VDAC.OUT VAUX2. Peripheral Voltages 7. The VDAC LDO can be configured to provide 1. 1. U7B BCI TPS65950 VAC ICTLAC1 ICTLAC2 ICTLUSB1 ICTLUSB2 VPRECH PCHGAC PCHGUSB VCCS VBATS VBAT BCIAUTO Backup battery IO Level IO_1P8 N5 N7 P2 P6 P1 N2 N4 N6 P5 P4 R5 N1 R65 M14 C8 D11 D12 D9 D10 C108 1uF.2uF.OUT VAUX3.3 V. linear regulator that powers the PROCESSOR dual-video DAC.10V VIO_1P8 BT1 0.10V VBAT BKBAT VIO_1V8 C107 0.OUT J15 H14 L2 K2 A4 C2 B3 G16 M3 M2 C122 C121 1uF.10V C128 10uF.2 VDD_PLL1 The VPLL1 programmable LDO regulator is low-noise.6.0805.OUT VAUX1.RIGHT VBAT.2V.8V for the BeagleBoard.1P8 VBAT. The VDD_PLL1 rail is initialized to 1.10V C116 1uF.8. low-noise.LEFT BAT_LI_RTC C109 VMMC2.OUT VAUX4.10V 1uF.IN VMMC1.IN VBAT.10V C127 1uF.0 7.3V VDD_PLL2 VDD_PLL1 VDAC_1V8 VDD_SIM VMMC2 VDD_MMC1 CAM_2V8 CAM_1V8 USB_1V8 EXP_VDD(1. The VDAC_1V8 rail should be set to 1. based on the value of the VSEL field (VDAC_DEDICATED[3:0]).85V-3V) C120 1uF.OUT VSIM VMMC2.IN VAUX4.10V C115 1uF.8.8V.3V Figure 26.10V C213 1uF. Page 61 of 164 .
1. 1. Page 62 of 164 .OUT rail from the TP65950. 1. 2.0V in the event 3V cards are being used. See the camera module section for more information.8. The VMMC1 rail defaults to 3.3 V.0 V and can deliver up to 50mA.85 to 3.4 VDD_SIM This voltage regulator is a programmable. See the camera module section for more information.7 CAM_2V8 This rail powers the optional camera module and uses the VAUX4.8V for proper operation of the camera module.8V I/O rail of the USB PHY and includes a discharge resistor and overcurrent protection (short-circuit).8. 7.5 to 2.OUT rail from the TPS65950.8V and can deliver up to 200mA of power. low dropout.0 V.OUT rail from the TPS65950.0V as directed by the TPS65950 boot pins and will deliver up to 220mA. 7.2 V.9 USB_1V8 The VAUX2 LDO regulator is a programmable linear voltage converter that powers the 1. The voltage rail is labeled VDD_EHCI on the schematic. The VSEL field (VSIM_DEDICATED[3:0]) can be programmed to provide output voltage of 1.8 CAM_1V8 This rail powers the optional camera module and uses the VAUX3. This railed should be set to 1. 7. The default output voltage of this LDO as directed by the TPS65950 boot pins is 1. VMMC2 is provided as an auxiliary voltage rail on P17.8.15V and can deliver up to 100mA of current.7 to 2.8 V.6 VDD_VMMC1 The VMMC1 LDO regulator is a programmable linear voltage converter that powers the MMC1 slot and includes a discharge resistor and overcurrent protection (short-circuit). It can be set to 3. The VAUX2 LDO is powered from the main VBAT rail. 7. or 3. VMMC2 is adjustable from 1. VAUX4 is adjustable from .8V. The VAUX2 rail defaults to off as directed by the TPS65950 boot pins and will deliver up to 100mA. This railed should be set to 1. linear voltage regulator supplying the bottom 4 bits of the 8 bit SD/MMC card slot. The proper setting of this rail is determined by the application and the HW supplied that connects to P17. The VMMC1 LDO is powered from the main VBAT rail.0 7.8. the Auxiliary Access Header.5 VMMC2 The VMMC2 rail uses the VMMC2. 7.8V for proper operation of the camera module.8. VAUX4 is adjustable from 1. 1.8V and can deliver up to 100mA of power.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C.8.8 V. This LDO regulator can also be turned off automatically when the MMC card extraction is detected.
10 EXP_VDD The EXP_VDD rail uses the VAUX1. The proper setting of this rail is determined by the application and the HW supplied that connects to P13. 7. the LCD Expansion Header.OUT rail from the TP65950. R65 must be installed.11 for information on the battery selection and installation.1 Boot Configuration The boot configuration pins on the TPS65950 determine the power sequence of the device. In order to support the processor on the board with the correct power configuration.9. The battery can be purchased from DigiKey or other component suppliers. 7. The board does not come equipped with the battery. You must make sure that prior to installing the battery that R65 is removed.0 7.8. EXP_VDD is provided as an auxiliary voltage rail on P13.1.2 RTC Backup Battery An optional battery to backup for the Real Time Clock that is in the TPS65950 is provided for in the design.9 Other Signals This section describes other signals in the design that have not been categorized. Page 63 of 164 . Refer to section 9. the boot pin configuration is fixed at: o BOOT0 tied to VBAT o BOOT1 tied to Ground. 7.0V and can deliver up to 200mA of current.5 to 3. EXP_VDD is adjustable from 2. When the battery is not installed.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C.9.
in this case the processor. the TPS65950 knows the type of OMAP processor that it needs to support.3 Power Sequencing Based on the boot configuration pins.9. Figure 27. Page 64 of 164 . The voltages are ramped in a sequence that is compatible with the processor. clocks.0 7.4 Reset Signals The BeagleBoard uses three distinct reset circuits: o Warm Reset o Cold Reset o User Reset Figure 28 shows the connections for the Reset interfaces. and reset signal come up. Figure 27 is the sequence in which the power rails.1. Power Sequencing 7.9.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C.
REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C.9.4.4. consequently. the signal becomes open drain. this pin becomes an input to the processor. By running the signal through a buffer. There is no way for the user to generate a warm reset on the BeagleBoard. which requires a pullup on the signal. When an internal reset occurs.2 Cold Reset On power up as shown in Figure 27. The TPS65950 can be configured to perform a warm reset of the device to bring it into a known defined state by detecting a request for a warm reset on the NRESWARM pin. Reset Circuitry 7. It also allows for the reset signal to be pulled low or held low for an extended time by circuitry on the expansion card if needed. by pressing the reset switch S2. power on reset.4.1uF 5 1 R42 10K 4 2 U5A 6 3 1 B3F-1000 SN74LVC2G07DCKR 2 Figure 28. By pushing the Reset button.1 Warm Reset The warm reset is generated by the processor on power up. an interrupt is generated into the processor. The software that is run as a result of this can then do whatever housekeeping is required and then send the processor into a reset mode. After initialization.7K VIO_1V8 AH25 AF24 SYS_nRESPWRON SYS_nRESWARM/GPIO_30 2 4 6 8 10 12 14 16 18 20 22 24 26 28 P9 1 3 5 7 9 11 13 15 17 19 21 23 25 27 VBAT IO_1P8 VBAT nRESPWRON nRESWARM PWRON A13 B13 A11 nRESPWRON nRESWARM PWRON 4.9. This will allow the nRESPWRON signal to be pulled low. SN74LVC2G07. 7.7K VIO_1V8 VIO_1V8 R59 PROCESSOR nRESET S2 C12 R53 DNI 0. The signal from the TPS65950 is an output only and is not an open drain signal.9.1. the TPS65950 generates nRESPWRON. The nRESWARM signal is a bidirectional reset. nRESWARM goes low and resets all the peripherals and the TPS65950. to force a reset to the PROCESSOR processor and to any device on the expansion card that require a reset. The minimum duration of the pulse on the nRESWARM pin should be two 32-kHz clock cycles.0 U7A T P S 6 5 9 5 0 DM3730 U4B R61 4. Page 65 of 164 .3 User Reset The USER RESET button can be used to request a Warm Reset from the processor. The nRESWARM output is open-drain. 7. an external pullup resistor is required.
DM37x Block Diagram Page 66 of 164 . please refer to the processor Technical Reference Manual.5 mSecure Signal This signal provides for protection of the RTC registers in the TPS65950 be disabling that function via a control signal from the processor. This signal is referenced in the TPS65950 documentation. In the BeagleBoard design it is not used but it is pulled high to insure the desired operation is maintained. 7.10 Processor The heart of BeagleBoard-xM is the DM3730 processor.0 7.4 PWRON You will notice another signal on the TPS65950 called PWRON.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C.9.1.4. Figure 29 is a high level block diagram of the processor. For more information on the operation on the signal. Figure 29.9. 7.
refer to the Technical Reference Manual (TRM). and graphics processing sufficient to various applications. These pins are located on the bottom of the processor.0 7. such as: o Windows CE o Linux o QNX o Symbian o Others This processor device includes state-of-the-art power-management techniques required for high-performance low power products. Some features are not available in the lower-tier devices. multimedia application device and is integrated onto TI's advanced 45-nm process technology. The base address for the DDR SDRAM in the POP device is 0x8000 0000. Its connectivity is limited to the POP memory access on the top of the processor and therefore is only accessible by the SDRAM memory. you will notice on page 3 there are a lot of signals labeled NA0…65.1. If you look at the –xM schematic.10.10.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C. The processor architecture is configured with different sets of features in different tier devices. The DM3730 supports the following functions and interfaces on the BeagleBoard: o Microprocessor unit (MPU) subsystem based on the ARM Cortex-A8™ microprocessor o POP Memory interface o 4Gb MDDR (512Mbytes) o 24 Bit RGB Display interface (DSS) o SD/MMC interface o USB OTG interface o NTSC/PAL/S-Video output o Power management o Serial interface o I2C interface o I2S Audio interface (McBSP2) o Expansion McBSP1 o JTAG debugging interface 7. In the Rev Page 67 of 164 .1 Overview The DM3730 is a high-performance. The processor supports high-level operating systems (OSs). image.The architecture is designed to provide best-in-class video. For more information.2 SDRAM Bus The SDRAM bus is not accessible on the BeagleBoard.
10. 7.5 McBSP2 The multi-channel buffered serial port (McBSP) McBSP2 provides a full-duplex direct serial interface between the processor and the audio CODEC in the TPS65950 using the I2S format. The memory on the GPMC bus is NAND and therefore will support the classical NAND interface. However. 7.8V so it will require buffering of the signals to drive most LCD panels. Processor Figure 30. The DSS is configured to a maximum of 24 bits. Only four signals are supported on the McBSP2 port. Figure 30 is a depiction of McBSP2. Its connectivity is limited to the POP memory access on the top of the processor and therefore is only accessible by the NAND memory. these there are no signals on these pins.6 McBSP1 Page 68 of 164 . in the case of the processor on the BeagleBoard–xM.10. The address of the memory space is programmable. McBSP2 Interface 7.0 BeagleBoard processor. The logic levels of the LCD expansion connectors are 1. but can be used in lower bit modes if needed. 7.10.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C.1.10.4 DSS Bus The display subsystem provides the logic to display a video frame from the memory frame buffer in SDRAM onto a liquid-crystal display (LCD) display via the DVI-D interface or to a standalone LCD panel via the LCD interface connectors. these pins provided access to the SDRAM bus.3 GPMC Bus The GPMC bus is not accessible on the BeagleBoard.
0 McBSP1 provides a full-duplex direct serial interface between the processor and the expansion interface.1.8 Pin Muxing Page 69 of 164 . McBSP1 Interface 7.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C. Figure 31 is a diagram of McBSP1.7 McBSP3 McBSP3 provides a full-duplex direct serial interface between the processor and the expansion interface. Processor Figure 32.10. unlike the 4 signals on the other ports. Processor Figure 31. There are 6 signals supported on McBSP1. Figure 32 is a diagram of McBSP3. McBSP3 Interface 7.10.
the majority of pins have multiple configurations that the pin can be set to.0 On the processor.1. Processor Pin Muxing Settings Signal DSS MMC1 MMC2 UART3 GPMC UART1 I2C1 I2C2 I2C3 I2C4 JTAG TV_OUT SYS_nRESPWRON SYS_nRESWARM SYS_nIRQ SYS_OFF SYS_CLKOUT SYS_CLKOUT2 SYS_CLKREQ SYS_XTALIN GPIO_149 GPIO_150 McBSP1 McBSP2 McBSP3 GPIO_171 GPIO_172 Mode Default Default User Default Default Default Default Default Default Default FIXED Default Default Default Default Default Default Default Default FIXED 4 4 Default User Default 4 4 Page 70 of 164 . In some cases.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C. the settings required for those pins depends on how they are to be used. Each pin can have a maximum of 8 options on the pin. it will be indicated. For an explanation of the options. Table 4. In the case of the signals going to the expansion connector. please refer to the Expansion Header section. the default signal is the correct signal. the pin can become different signals depending on how they are set in the software. The USER notation under mode indicates that this is an expansion signal and can be set at the discretion of the user. Each pin can be set to a different mode independent of the other pins on the connector. In order for the BeagleBoard to operate. In essence. Where the default setting is needed. A FIXED indicates that there is only one function for that signal and that it cannot be changed. Table 4 is a list of all of the signals used on the processor for the BeagleBoard and the required mode setting for each pin. the pins used must be set to the correct signal. This is called the pin mode and is indicated by a three bit value (0:3).
may also be set as a GPIO pin.10. For information on those. Table 5 shows which of these GPIO pins are used in the design and whether they are inputs or outputs. Goes to the processor over the SYS_nIRQ pin. P12 Page 71 of 164 . While GPIO pins can be used as interrupts.1. TPS65950 Pin Processor PIN AF26 AH8 INT/GPIO SYS_nIRQ GPIO_29 GPIO0 Processor Interrupt Pins USAGE Interrupt from the TPS65950 SD Write protect lead.10 Interrupt Mapping There are a small number of pins on the processor that act as interrupts. 7. Some of these interrupts are connected to the TPS65950 and their status is reflected through the main TPS65950 interrupt. refer to the Expansion Connector section. If it is an interrupt. Can be polled or set to an interrupt. then it is covered in the interrupt section. Table 6 lists the interrupts.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C. Table 6. such as those that connect to the expansion connector.9 GPIO Mapping There are a number of GPIO pins from the processor that are used on the BeagleBoard design. Used to put the device in the boot mode or as a user button input Other signals. Table 5.0 7. the table only covers the GPIO pin mode. A Hi = DVI-D enabled. OMAP PIN AA9 W8 AG9 J25 AE21 INT/GPIO GPIO_149 GPIO_150 GPIO_23 GPIO_170 GPIO_7 I/O O O I O I Signal LED_GPIO149 LED_GPIO149 MMC1_WP DVI_PUP SYSBOOT_5 Processor GPIO Pins USAGE Controls User LED0 Controls User LED1 SD/MMC card slot Write protect Controls the DVI-D interface.10. MMC1 card detect input.
1. Figure 33.0 AF25 AE17 AE25 T21 SY S_XTALIN SY S_32K McBSP_CLKS U4B SY S_CLKREQ/GPIO_1 Page 72 of 164 . but those are discussed in separate sections.0 7.1uF. The memory is a MCP (Multi Chip Package) that contains a dual Mobile DDR SDRAM stack. Figure 34 shows the components that make up the System Clocks. Figure 33 shows the POP Memory concept. 7. POP Memory The Memory device mounts on top of the processor. 26MHz and McBSP_CLKS. The configuration used on the board is a 200MHz 4Gb MDDR SDRAM device from Micron. VIO_1V8 OSC_EN R55 Y1 U7A 1 2 NC +VCC 4 3 26MHZ R56 33 HFCLK_26MHz R47 33 HFCLKOUT OSC_EN CLK256FS A14 R12 C6 D7 G10 D13 P15 P16 N10 HFCLKIN HFCLKOUT CLKEN CLKEN2 CLKREQ CLK256FS 32KXOUT 32KXIN 32KCLKOUT TPS65950 4.12 System Clocks There are three main clocks needed for the operation of the board. There are additional clocks needed elsewhere in the system.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C. such as USB HUB. 32KHz.11 POP Memory Device The processor uses what is called POP (Package-on-Package) memory.10V COM/CASE OUT OSC_26MHZ_EAE R51 C102 22PF T2_XOUT 33 2 Y3 32KHz Cry stal 1 C103 22PF T2_XIN Processor OMAP3730_ES1.7K C85 0.
12. the host processor must set the correct date and time to enable the RTC. The 32. Page 73 of 164 .5-M byte.12.2 TPS65950 Setup When the TPS65950 enters an active state.0 7. the Processor must immediately indicate the HFCLKIN frequency (26 MHz) by setting the HFCLK_FREQ bit field (bits [1:0]) in the CFG_BOOT register of the TPS65950. 7.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Figure 34. The 26MHz clock is provided by an onboard oscillator. 7. The TPS65950 receives the external HFCLKIN signal on ball A14 and uses it to synchronize or generate the clocks required to operate the TPS65950 subsystems.2.12. The clock signal enters via ball AE17 on the PROCESSOR. the USB subsection does not work.2.12. 7.3 Processor 26MHz The 26MHz clock for the processor is provided by the TPS65950 on ball R12 through R38.2.768-kHz clock drives the RTC embedded in the TPS65950. On the BeagleBoard.1 26MHz Source The BeagleBoard is designed to support two suppliers of the 26MHz oscillator. Y2. The three DCDC switching supplies (VIO. HFCLK_FREQ must be set by the processor during the initial power-up sequence. System Clocks Revision C.12. but it can be disabled if desired under SW control. this is done by the internal boot ROM on startup. The TPS65950 has a separate output from the crystal to drive the processor that buffers the resulting 32-kHz signal and provides it as 32KCLKOUT. 7. which is provided to the processor on ball AE25. The RTC is not enabled by default. and the PWR registers are accessed at a default 1.1 32KHz Clock The 32KHz clock is needed for the TPS65950 and the processor and is provided by the TPS65950 via the external 32KHz crystal. The default mode of the 32KCLKOUT signal is active. The TPS65950 must have this clock in order to function to the point where it can power up the BeagleBoard. Y1. and in that condition. and VDD2) operate from their free-running 3-MHz (RC) oscillators.1.2 26MHz Clock This section describes the 26MHz clock section of the BeagleBoard. a 33 ohm resistor is providing to minimize any reflections on the clock line. HFCLK_FREQ has a default of being not programmed. This is the reason the 26MHz clock is routed through the TPS65950. VDD1.
7.3 McBSP_CLKS An additional clock is also provided by the TPS65950 called McBSP_CLKS.0 7. this port will be used as a Host port in many applications. NOTE: In order to use the OTG in the Host mode. The USB OTG supplement does not prevent the use of a hub. Only the USB host can schedule the configuration and data transfers over the link. The USB peripherals cannot initiate data transfers. a USB host acting as a master and a USB peripheral acting as a slave. Page 74 of 164 . Client port. control the connection and exchange Host/Peripheral roles between each other. but it describes role swapping only in the case of a one-to-one connection where two OTG devices are directly connected. The main use is as a client port.12. As the Rev B does not have a Host USB port. If a standard hub is used. The standard USB uses a master/slave architecture. The USB OTG compatible devices are able to initiate the session. 7. It can be used as an OTG port. is intended to be a client mode in order to pull power from the USB host which is typically a PC. is not really needed. or Host port. An example might be connecting a USB keyboard or printer to BeagleBoard or a USB printer that knows how to grab documents from certain peripherals and print them.13 USB OTG Port The BeagleBoard has a USB OTG (On-the-Go) port.0 specification.13.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C. With the addition of the USB Host ports. The combination of the processor and the TPS65950 allows the BeagleBoard to work as an OTG device if desired. the BeagleBoard must be powered from the DC supply. The primary mode of operation however.1. they only respond to instructions given by a host. the supplement notes that using it will lead to losing USB OTG role-swap capabilities making one device as the Default-Host and the other as the Default-Peripheral until the hub is disconnected.1 USB OTG Overview USB OTG is a supplement to the USB 2. This clock is provided to the PROCESSOR in order to insure synchronization of the I2S interface between the processor and the TPS65950. the need to use three OTG port as a Host. USB OTG works differently in that gadgets don't need to be pure peripherals because they can sometimes act as hosts. as that is the mode that will supply the power needed to power the BeagleBoard.
1. This leads to a corresponding increase in complexity and pin count. with an 8-bit bi-directional data bus.13.1uF. 1 + DATA0 DATA1 DATA2 DATA3 DATA4 DATA5 DATA6 DATA7 DN DP ID 2 PGB0010603MR 0.1 Processor Interface The controller for the ULPI interface is the Processor.13.2 USB OTG Design Figure 34 is the design of the USB OTG port on the BeagleBoard. Pin count reductions minimize the cost and footprint of the PHY chip on the PCB and reduce the number of pins dedicated to USB for the link controller.13. Unlike full. plus clock. which utilize serial interfaces. The ULPI used on the BeagleBoard keeps this down to only 12 signals because it combines just three control signals. ULPI stands for UTMI+ low pin interface and is designed specifically to reduce the pin count of discrete high-speed USB PHYs.0603 Figure 35.0 systems. high-speed requires a parallel interface between the controller and PHY in order to run the bus at 480Mbps.and low-speed USB systems. USB OTG Design 7.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C. Table 7 describes the signals from the processor that are used for the USB OTG interface. This bus is also used for the USB packet transmission and for accessing register data in the ULPI PHY.7uF. 7.3. U7A 4 4 4 4 4 4 4 4 4 4 4 4 USB0HS_CLK USB0HS_STP USB0HS_DIR USB0HS_NXT USB0HS_DAT0 USB0HS_DAT1 USB0HS_DAT2 USB0HS_DAT3 USB0HS_DAT4 USB0HS_DAT5 USB0HS_DAT6 USB0HS_DAT7 VBUS_5V0 L15 L14 L13 M13 K14 K13 J14 J13 G14 G13 F14 F13 UCLK STP DIR NXT TPS65950 VBUS_5V0 7 G2 G4 9 P1 T11 T10 R11 J1 JMP PGB0010603MR D1 D2 C3 D3 D4 1 2 3 4 5 R8 R57 0.0 7. .6.0603 VBUS C86 4.10V PGB0010603MR PGB0010603MR Page 75 of 164 8 G5 VB DD+ ID G1 G3 6 USB_CLIENT / OTG PORT mini USB-AB . It defines an interface between USB link controller (processor) and the TPS65950 that drives the actual bus.3 OTG ULPI Interface ULPI is an interface standard for high-speed USB 2.3V. It provides all of the required signals to drive the interface.
13. Table 8 is a list of the signals used on the TPS65950 for the ULPI interface. Page 76 of 164 .3.1. Table 9 describes the charge pump pins. the BeagleBoard will need to be powered from the DC supply. the USB charge pump is in high impedance.13. When the TPS65950 acts as a B-device. If used in the OTG mode as an A-device.4 OTG Charge Pump When the TPS65950 acts as an A-device. TPS65950 ULPI Interface Signal UCLK STP DIR NXT DATA0 DATA1 DATA2 DATA3 DATA4 DATA5 DATA6 DATA7 Description High speed USB clock High speed USB stop High speed USB dir High speed USB direction High speed USB Data bit 0 High speed USB Data bit 0 High speed USB Data bit 0 High speed USB Data bit 0 High speed USB Data bit 0 High speed USB Data bit 0 High speed USB Data bit 0 High speed USB Data bit 0 Type I/O I O O I/O I/O I/O I/O I/O I/O I/O I/O Ball L15 L14 L13 M1 K14 K13 J14 J13 G14 G13 F14 F13 7. the USB charge pump is used to provide 4.2 TPS65950 Interface The TPS65950 USB interfaces to the Processor over the ULPI interface. If acting as a B-device. Table 8. there will not be a voltage source on the USB OTG port to drive the BeagleBoard.8 V/100 mA to the VBUS pin.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Table 7. Processor ULPI Interface Revision C.0 Signal hsusb0_clk hsusb0_stp hsusb0_dir hsusb0_nxt hsusb0_data0 hsusb0_data1 hsusb0_data2 hsusb0_data3 hsusb0_data4 hsusb0_data5 hsusb0_data6 hsusb0_data7 Description Dedicated for external transceiver 60-MHz clock input from PHY Dedicated for external transceiver Stop signal Dedicated for external transceiver Data direction control from PHY Dedicated for external transceiver Next signal from PHY Transceiver Bidirectional data bus Transceiver Bidirectional data bus Transceiver Bidirectional data bus Transceiver Bidirectional data bus Transceiver Bidirectional data bus Transceiver Bidirectional data bus Transceiver Bidirectional data bus Transceiver Bidirectional data bus Type I O I I I/O I/O I/O I/O I/O I/O I/O I/O Ball T28 T25 R28 T26 T27 U28 U27 U26 U25 V28 V27 V26 7.
REF: BB_SRM_xM
BeagleBoard-xM System Reference Manual
USB OTG Charge Pump Pins
Revision C.1.0
Table 9.
The charge pump input voltage. Connected to VBAT. The charge pump flying capacitor plus. The charge pump flying capacitor minus. The charge pump ground.
Power O O GND
The charge pump is powered by the VBAT voltage rail. The charge pump generates a 4.8-V (nominal) power supply voltage to the VBUS pin. The input voltage range is 2.7 V to 4.5 V so the 4.2V VBAT is within this range. The charge pump operating frequency is 1 MHz. The charge pump integrates a short-circuit current limitation at 450 mA.
7.13.5 OTG USB Connector
The OTG USB interface is accessed through the miniAB USB connector. If you want to use the OTG port as a USB Host, pin 4 of the connector must be grounded. The -xM Rev A version of Beagle provides jumper pad, J6 that allows for a small piece of solder to be placed on the pads to perform this function. It should be noted that with the USB Host port on the -xM Rev A Beagle, the need to convert the OTG port to a host mode is greatly diminished.
7.13.6 OTG USB Protection
Each lead on the USB port has ESD protection. In order for the interface to meet the USB 2.0 Specification Eye Diagram, these protection devices must be low capacitance.
Onboard USB HUB
A new feature of the –xM board is the inclusion of an onboard USB 4 port hub with an integrated 10/100 Ethernet. This section describes the design of the HUB and the interface to the processor. This allows for the support of LS and FS USB devices without the need for an external USB HUB. Figure 36 is a high level block diagram of the system design of the integrated HUB.
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REF: BB_SRM_xM
BeagleBoard-xM System Reference Manual
Revision C.1.0
Figure 36. USB HUB Block Diagram
The following section covers each of the key function in the overall design. o o o o o Power HS USB PHY HUB USB Port Power Ethernet
7.14.1 Power
The power for the HUB is provided by two sources. Figure 37 is the design of the HUB power circuitry. The HUB_3V3 rail, the main supply rail for the HUB, is provided by U16, a TL1963A LDO. Power for the LDO is provided by the DC_5V_USB rail from the overvoltage protection circuit. The LDO is set to provide 3.3V and is set by R111 and R113. This rail can be turned on or off from the processor by using the I2C bus to communicate to the TPS65950. By default, the LDO is turned off. The TPS65950 provides the USB_1V8 rail which is used by the USB PHY. The processor can turn on or off this rail by communicating with the TPS65950 via the I2C bus.
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BeagleBoard-xM System Reference Manual
Revision C.1.0
AM37xx_ES1.0 I2C1_SDA I2C1_SCL U4B J21 K21
DC_5V_USB VBAT 2 1 3 R120 HUB_3V3 OUT 4 C177 6 5 U16_FB R111 56.2K,1% R113 32.4K,1% 4.7uF,6.3V,0603 D14 LTST-C190GKT
200K,1%,0603 4.7uF,6.3V,0603 C211
Figure 37. HUB Power Circuitry
A green LED, D14, indicates that power is applied to the HUB circuitry.
The configuration of the HS USB PHY is basically the same as on the Rev BeagleBoard design. A PHY is required between the processor ULPI interface and the USB HUB. Figure 39 shows the processor and PHY interface.
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0603 C166 .8_0 CPEN VBAT NC GND (QFN) 22 19 18 23 24 8 11 14 20 32 30 28 17 21 12 33 USB33_VBUS USB33_ID USB33_RBIAS R99 R100 R102 10K.8_1 VDD1.0603 CLKOUT HUB_3V3 U14 29 31 2 1 3 4 5 6 7 9 10 13 16 15 27 26 25 STP DIR NXT CLKOUT DATA0 DATA1 DATA2 DATA3 DATA4 DATA5 DATA6 DATA7 SPK_R SPK_L RESETB REFCLK XO USB3320 VBUS DM DP ID RBIAS REFSEL0 REFSEL1 REFSEL2 VDD3.10V 10uF.3V.3 VDDIO VDD1.3V.7uF.6. Page 80 of 164 4.3 L12 USB_1V8F C206 C164 USB_1V8 1 2 C165 30MHZ_50mA C205 C167 0.10V Figure 38.1.06K_1%_0603 OMAP3730_ES1.0 USB_1V8 R98 0.CER.7uF. Table 10.0 U4B AF7 AG7 AH7 AG8 AH8 AB2 V3 Y2 Y3 Y4 AA3 R8 AE7 HSUSB2_TLL_STP HSUSB2_TLL_DIR HSUSB2_TLL_NXT HSUSB2_D0 HSUSB2_D1 HSUSB2_D2 HSUSB2_D3 HSUSB2_D4 HSUSB2_D5 HSUSB2_D6 HSUSB2_D7 GPIO_56 HSUSB2_CLK USB33_VDD3.3V R103 10K HUB_3V3 C169 C168 4.0603 0. USB PHY Design The interface to the processor is the HSUSB2 interface.1uF.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C.1uF.0805.6.6.3V. Signal Hsusb2_clk Hsusb2_stp Hsusb2_dir Hsusb2_nxt Hsusb2_data0 Hsusb2_data1 Hsusb2_data2 Hsusb2_data3 Hsusb2_data4 Hsusb2_data5 Hsusb2_data6 Hsusb2_data7 Gpio_147 USB Host Port OMAP Signals Input/Output O O I I I/O I/O I/O I/O I/O I/O I/O I/O O Description External transceiver 60-MHz clock output to PHY External transceiver Stop signal Transceiver data direction control from PHY Next signal from PHY Bidirectional data bus signal for 12-pin ULPI operation Bidirectional data bus signal for 12-pin ULPI operation Bidirectional data bus signal for 12-pin ULPI operation Bidirectional data bus signal for 12-pin ULPI operation Bidirectional data bus signal for 12-pin ULPI operation Bidirectional data bus signal for 12-pin ULPI operation Bidirectional data bus signal for 12-pin ULPI operation Bidirectional data bus signal for 12-pin ULPI operation Enable/reset line to the USB PHY.0603 0.7uF.10V 4.1uF.10V 0. The signals used on this interface are contained in Table 10.6.DNI USBDM0 USBDP0 0 8.1uF.
5kΩ pull-up resistors. The 3.8V and therefore the resistor will dissipate approximately 80μW of power.3 USB HUB The key component in the HUB design is a SMSC LAN9514 USB HUB plus Ethernet device. The USB3322 transceiver fully integrates all of the USB termination resistors on both DP and DM. only the host mode of operation is being supported as it is used to connect to the HUB on the board. The PHY used in the design is a USB3320 series device from SMSC. All of the signals and their functions align with the descriptions found in the processor interface section. but was added as a "just in case" option if the CLKOUT signal was a source of noise in the PHY. The RBIAS block in the PHY consists of an internal bandgap reference circuit used for generating the driver current and the biasing of the analog circuits. In order to interface to the processor. 1% tolerance. Page 81 of 164 . The SMSC PHY device supports this mode and is used on the Beagle. the USB_1V8 rail to power the I/O rails and the HUB_3V3 to power the rest of the device.14.0 Transceiver (PHY) that meets all of the electrical requirements to be used as a Hi-Speed USB Host. The USB3320 is a highly integrated Hi-Speed USB2.3V rail for the device is generated internally and requires a filter and bypass cap to be connected externally. This block requires an external 8. the device must be used in the 60MHz clock mode. a zero ohm series resistor was added. The USB3322 device requires two voltages. The USB_1V8 rail is derived from the VAUX2 rail supplied by the TPS65950 PMIC. These resistors require no tuning or trimming. we ground the ID pin to force it into a Host mode at all times. This is not required. It was proven not to be the case. On -XM Rev A.0 The husb2_clk signal is an output only and is used to support a HS USB PHY that supports an input clock mode.06KΩ. 7. This includes 1. Figure 40 is the HUB design. The clock for the PHY is derived from the 60MHz signal generated by the processor. 15kΩ pull-down resistors and the 45Ω high speed termination resistors. The nominal voltage at RBIAS is 0. As we are not using this device to support the OTG protocol but instead as a host device. This is done by tying the CLKOUT signal on the USB PHY to VIO_1V8.1. In this design.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C. reference resistor connected from RBIAS to ground.
The main power supply for the LAN9514 is the HUB_3V3 supplied by the dedicated power regulator.10V C193 0.6.3V.10V 0.10V Pow er VDD33IO VDD33IO VDD33IO VDD33IO VDD33IO VDD33A VDD33A VDD33A VDD33A VDD33A VDD33A VDD33A 0.7uF.1uF.10V C174 GPIO + Misc.1uF.1uF.1uF.1uF.0603 AUTOMDIX_EN 41 EXRES RXP RXN TXP TXN 52 53 55 56 RXP RXN TXP TXN AUTOMDIX_EN HUB_3V3 R105 13 34 40 47 nHUB_RESET 0.1uF.1uF.1.10V L11 1 2 2.1uF.10V C194 Upstream HUB_3V3 C197 C196 R101 R109 100K HUB_VBUS 11 USRBIAS 63 VBUS_DET USBRBIAS USBDP0 USBDM0 59 58 USBDP0 USBDM0 0.10V 0.10V C191 0.0 PHYs.05 DCR C181 C183 VDD18CORE 15 38 VDD18ETHPLL VDD18USBPLL 48 62 VDD18CORE VDD18CORE VDD18ETHPLL VDD18USBPLL VSS(FLAG) 65 C186 C187 1uF.8V core voltage is derived from an internal LDO and requires external filtering. a 10/100 Ethernet PHY.1% 1uF. four integrated downstream USB 2.1uF.10V C175 0.0603 0.10V U15 L10 1 2 2. Page 82 of 164 0. an integrated upstream USB 2.7uF.10V C182 C185 0.0 Amp/0.1uF. a 10/100 Ethernet Controller.10V C195 5 10 49 51 54 57 64 .4K. USB HUB Design The LAN9514/LAN9514i is a high performance Hi-Speed USB 2.0 PHY. A 1.10V Dow nstream USBDM2 USBDP2 PRTCTL2 USBDM3 USBDP3 PRTCTL3 1 2 14 3 4 16 USBDM2 USBDP2 USBDM_2 USBDP_2 USBDM4 USBDP4 PRTCTL4 USBDM5 USBDP5 PRTCTL5 6 7 17 8 9 18 USBDM4 USBDM_3 USBDP_3 USBDP4 USBDM_4 USBDM5 USBDP_4 USBDP5 26 HUB_3V3 EEDI EEPROM Ethernet EEDO EECS EECLK 25 24 23 R118 10K HUB_3V3 HUB_EXRES R63 50 12. TEST1 TEST2 TEST3 TEST4 n_RESET nFDX_LED/GPIO0 nLNKA_LED/GPIO1 nSPD_LED/GPIO2 GPIO3 GPIO4 GPIO5 GPIO6 GPIO7 20 21 22 35 36 37 42 43 100K 3 HUB_RESET 3 U18B SN74LVC2G06DCKR 4 12 XI XO HUB_3V3 R112 1M R129 R128 R108 R107 xtal2-216x60-hcm49 1 25.0 hub.10V 12K.1%.1uF.1uF.0 HUB_3V3 HUB_3V3A C190 HUB_3V3 19 27 33 39 46 C184 C180 4.1uF.3V.000MHz C178 33pF 2 61 60 Clocks XI XO nTRST TMS TDI TDO TCK CLK24_EN CLK24_OUT 44 45 CLK24_EN R106 10K 10K HUB_nTRST 28 10K HUB_TMS 29 10K HUB_TDI 30 31 10K HUB_TCK 32 JTAG LAN9514 qf n64-11x27-smsc Y4 C179 33pF Figure 39.1uF.05 DCR 4.6. The LAN9514/LAN9514i contains an integrated USB 2.1uF.10V C192 0.0 hub with a 10/100 Ethernet controller.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C.0 Amp/0.10V C176 0.0603 0. Filtering is required on all input pins.10V 0.
DM. Figure 41 is the design of the power control for each USB host port.1uF. DP. USB Port Power Design Page 83 of 164 0.0 The LAN9514 requires an external 25MHZ crystal to generate the required internal clocks. In an over current condition the signal is immediately turned off without waiting for the processor to turn off the power. U13. VBUSA SHIELD DASHIELD DA+ GNDA SHIELD VBUSB DBSHIELD DB+ GNDB P16 USB-A Conn.1. The optional 24MHz clock output is not used on the board and is disabled. DC_5V_USB 2 6 3 4 7 8 U13 IN1 IN2 EN1 EN2 EN3 EN4 OUT1 OUT2 OUT3 OUT4 OC1 OC2 OC3 OC4 15 14 11 10 16 13 12 9 VBUS1 VBUS2 VBUS3 VBUS4 C171 C172 C173 0.4 USB Port Connectors There a two dual port type A USB connectors used on the –xM board each one provides connections for four signals. The LAN9514 detects the overcurrent condition and keeps the over current condition turned off. a TPS2045.10V GND GND C170 . VBUSA SHIELD DASHIELD DA+ GNDA SHIELD VBUSB DBSHIELD DB+ GNDB MH1 MH2 MH3 MH4 USBDM4 USBDP4 PRTCTL4 USBDM5 USBDP5 PRTCTL5 6 7 17 8 9 18 VBUS3 USBDM_3 USBDP_3 VBUS4 USBDM_4 USBDP_4 A1 A2 A3 A4 B1 B2 B3 B4 MH1 MH2 MH3 MH4 Figure 40. and Ground. Each port can be turned on or off from the LAN9514 over the USB interface.1uF.1uF. The ESD protection is integrated into the USB HUB. 7.10V 1 5 TPS2054BD LAN9514 U15 1 2 14 3 4 16 VBUS1 USBDM_1 USBDP_1 VBUS2 USBDM_2 USBDP_2 A1 A2 A3 A4 B1 B2 B3 B4 USBDM2 USBDP2 PRTCTL2 USBDM3 USBDP3 PRTCTL3 P14 USB-A Conn. VBUS. You will notice that there are no external ESD devices on the connector.10V ESD_RING C160 + 100UF C161 + 100UF C162 + 100UF C163 + 100UF 0.14. This enables the port to automatically switch the TX and RX leads if needed. The AUTOMIDX feature is enabled which allows for auto polarity detection.10V 0. The overcurrent detect output is tied to the enable pin from the LAN9514.1uF.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C. is a four port FET with over current detection.
3 10BASE-T and 802. 10.9. A . HUB_3V3 49. 7.9.10V RXP RXN TXP TXN 52 53 55 56 RXP RXN TXP TXN 4 5 13 14 HUB_3V3 nLNKAR R119 0. The Ethernet features auto polarity correction and Auto-MIDX. USB Based Ethernet Design The 10/100 Ethernet controller provides an integrated Ethernet MAC and PHY which are fully IEEE 802.3u 100BASE-TX compliant. P15.1% R115 49.022uF.1210 nFDX_LED/GPIO0 nLNKA_LED/GPIO1 nSPD_LED/GPIO2 20 21 22 HUB_3V3A Figure 41.GND1 RCT GND2 Y ELC SHD1 Y ELA SHD2 GRNC GRNA GRN+ GRNY ELY EL+ ETHER C198 0.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C.1% R117 nLNKA nSPD R104 R50 330 330 Page 84 of 164 .1.14. The LAN9514 device while performing the function of the HUB also contains the Ethernet controller.0 Each USB Host port has its own dedicated FET and power control.9.5 Ethernet Figure 41 is the circuitry that applies to the Ethernet interface on the board. A connector.1uf capacitor is provided for bypass capacitance on each rail. with integrated magnetics is used to provide the physical interface off the board.1% R116 LAN9514 U15 P15 3 1 2 7 8 6 nSPDR 11 12 9 10 15 16 17 18 TCT_RCT TCT TD+ TDRD+ RD.9.1% R110 49. A 100uf capacitor is connected to each USB power port for added surge current capabilities.1% R114 49.
The maximum current this rail can provide is 220mA as determined by the TPS65950 regulator. SD/MMC Command pin SD/MMC Data pins I/O O I/O I/O Pin N28 M27 N27.2 Processor Interface There are no external buffers required for the microSD operation. The default setting on this rail is 3.N25.3V R135 10K P7 U7A TPS65950 VMMC1.15 microSD The board provides a single microSD interface.1.CER.6.P28.P27. Maximum current can be limited by the overall current available from the USB interface of the PC. Table 11 provides a description of the signals on the MMC card. Table 11.0 7.OUT CD1 U4A MMC1_DAT2 MMC1_DAT3 MMC1_CMD MMC1_CLK MMC1_DAT0 MMC1_DAT1 PROCESSOR 10K 10K 10K 10K 10K N25 P28 M27 N28 N27 N26 R16 33 10K C2 P12 1 2 3 4 5 6 7 8 DAT2 GND CD/DAT3 CD CMD GND3 VDD GND4 CLOCK TBD1 VSS TBD2 DAT0 TBD3 DAT1 microSD SCHA2B0300 9 10 11 12 13 14 15 Figure 42. VDD_MMC1 R74 R75 R76 R77 R72 R73 C144 C145 0. SD/MMC OMAP Signals Signal Name MMC1_CLK MMC1_CMD MMC1_DAT(0.1 microSD Power The microSD connector is supplied power from the TPS65950 using the VMMC1 rail.10V VIO_1V8 10uF. it cannot be used for the typical SDIO or MMC functions..0V as set by the Boot ROM and under SW control.0805. Page 85 of 164 .15. The processor provides all of the required interfaces for the microSD interface.8V cards. Its primary use is for providing the boot source for SW. microSD Interface 7.80V for use with 1.7) Description SD/MMC Clock output. can be set to 1.1uF. Unlike the BeagleBoard.N26. 7. Figure 42 is the microSD interface design on the BeagleBoard.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C.15.
0 P26.R27. o 3-V power supply.2 from the MMCA Technical Committee and the Secure Digital I/O Card Specification v2. The ROM code only supports standard operating voltage range (3-V). The MMC/SD specification defines two operating voltages for standard or high-speed cards. o Clock frequency: – Identification mode: 400 kHz – Data transfer mode: 20 MHz o Only one card connected to the bus o FAT12/16/32 support.15.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C.1. the Card Detect pin is grounded. if enabled. An interrupt. 4-bit SD mode. Page 86 of 164 . with or without master boot sector (MBR). A limited range of commands is implemented in the ROM code. The SW can be written such that the system comes out of sleep or a reduced frequency mode when the card is detected.R25 7. This is detected on pin P12 of the TPS65950. The ROM code reads out a booting file from the card file system and boots from it. is sent to the processor via the interrupt pin. The high-speed microSD host controllers handle the physical layer while the ROM code handles the simplified logical protocol layer (read-only protocol). 7.0 from the SD Association.3 Card Detect When a card is inserted into the connector. 3-V I/O voltage on port 1 o Initial 1-bit MMC mode.15. Including high-capacity (size >2GB) cards: HC-SD and HC MMC.4 Booting From SD/MMC Cards The ROM code supports booting from the microSD cards with some limitations: o Support for SD cards compliant with the Multimedia Card System Specification v4.
P/DIG.MAIN.MAIN.1 C97 100PF F1 G1 C96 100PF AUXL AUXR C98 C99 0. Table 12.MIC. It supports the I2S format to the TPS65950. U7A TPS65950 HSOL HSOL HSOR B4 B5 HSOR C88 E3 F3 HSMIC.M C92 100pF MIC.M C94 100PF DIG.1uF.M/DIG.10V 0.P MIC.16. Used to synchronize with the TPS65950 PGB0010603MR I/O I I/O I/O I/O I Pin R21 M21 N21 P21 T21 Page 87 of 164 .0 7.SUB.SUB. Audio Circuitry 7.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C.P MIC. In Table 12 are the signals used on the processor to interface to the CODEC. Processor Audio Signals Signal Name mcbsp2_dr mcbsp2_dx mcbsp2_clkx mcbsp2_fsx Mcbsp_clks Description Received serial data Transmitted serial data Combined serial clock Combined frame synchronization External clock input.M MIC. McBSP2 provides a full-duplex.MAIN.0 MIC. direct serial interface between CODEC inside the TPS65950.MIC1 E2 F2 G2 H2 MIC.MAIN.1 Processor Audio Interface There are five McBSP modules called McBSP1 through McBSP5 on the processor.1.10V C100 D10 47pF D11 C101 47pF CONN_AUXL CONN_AUXR 1 3 2 C95 100PF C93 100pF C87 INTER_HSOLR58 47uF.0 DIG.P HSMIC.1uF.CER 33 33 CONN_HSOL CONN_HSOR 1 3 P5 2 AUDIO_OUT C89 D8 47pF C90 D9 HSMIC.MIC.MIC.P HSMIC. Figure 43 is the Audio circuitry design on the BeagleBoard.16 Audio Interface The BeagleBoard supports stereo in and out through the TPS65950 which provides the audio CODEC.CER INTER_HSORR60 47uF.M PGB0010603MR 47pF PGB0010603MR AUDIO_IN P6 AUXL AUXR PGB0010603MR Figure 43.
0 7. This interface is not amplified and may require the use of amplified speakers in certain instances. In Table 13 are all the signals used to interface to the processor. the TPS65950 receives frame synchronization and bit clock. you must disable via SW this interface on the TPS65950. 7.SYNC I2S. it may require additional amplification of the signal for proper use. If the TPS65950 is the master.16.16.16. 7. Page 88 of 164 .5mm jack is supplied to support external audio inputs including stereo or mono. The TPS65950 supports the I2S left-justified and right-justified data formats. DOUT CLK256FS Description Clock signal (audio port) Synchronization signal (audio port) Data receive (audio port) Data transmit (audio port) Synchronization frame sync to the PROCESSOR I/O I/O IO I O O Pin L3 K6 K4 K3 D13 A new feature on the –xM is the ability to access the audio signals for use on an external add on board.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C.5mm jack is provided on BeagleBoard to support external stereo audio output devices such as headphones and powered speakers. If this feature is to be used. Table 13.2 TPS65950 Audio Interface The TPS65950 acts as a master or a slave for the I2S interface.4 Audio Input Jack A single 3.3 Audio Output Jack A single 3.CLK I2S.1.DIN I2S. If it is the slave. but doesn't support the TDM slave mode. If a microphone is o be used. Processor Audio Signals Signal Name I2S. it must provide the frame synchronization (I2S_SYNC) and bit clock (I2S_CLK) to the processor.
you would need to install the BLUE boxes and leave out the RED boxes. Reflected in Figure 44 are four resistor packs inside either Red or Blue boxes.10V PTC_RXEF010 RP1F RP1E RP1D RP1C RP1B RP1A AG22 AH22 AG23 AH23 AG24 AH24 E26 F28 F27 G26 AD28 AD27 AB28 AB27 AA28 AA27 G25 H27 H26 H25 E28 J26 AC27 AC28 6 5 4 3 2 1 11 12 13 14 15 16 10 10 10 10 10 10 DC_5V RT1 C153 0.10V Insures that the DVI-D is powered down at powerup.7K 13 14 CONN_HDMI 10K 10K 1K 10K ISEL BSEL DVI_DSEL DK3 DK2 DK1 PD ISEL/RESET BSEL/SCL DSEL/SDA DK3 DK2 DK1 TFADJ DKEN RSVD2 NC MSEN 19 35 34 49 11 TFADJ DKEN 410_NC MSEN R92 4.10V C157 0.10V U12 4 4 I2C3_SCL I2C3_SDA I2C3_SCL I2C3_SDA 3 5 4 6 VCCA VCCB A1 B1 A2 B2 OE GND TXS0102DCU 7 Internal 10K Pullups. the signals for DSS_D18-D23 need to be moved to other pins.45K_1%_0603 2 FERRITE.10V C152 0. The resistor packs in the RED boxes are installed and the BLUE boxes are not installed on the –xM to support the 720p resolution.7K TGND TGND TGND DGND DGND DGND 26 32 20 16 48 64 3 DVI_UP R43 10K 3 U5B SN74LVC2G07DBVR 4 VIO_1V8 C159 0. MMZ1608R301A DVI_DVDD C155 0.1uF. AUX_3V3 DVI_PVDD L7 L8 L9 1 1 1 VIO_1V8 R84 8. For legacy operation. MMZ1608R301A C154 0. These pins are different than those that are currently used on the BeagleBoard.1uF. DDC I2C Interface Figure 44.1uF. Figure 44 is the DVI-D interface design.DNI Page 89 of 164 .10V 2 FERRITE. The basic change requires that the DSS_D0-D5 need to be moved to the pins that normally carry the DSS_D18-D23 leads. In this case. The processor requires that different pins be used if 720p resolutions are required.DNI RES_0_0402.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C. but you may want to do this if your design were to need to work in the legacy mode.10V C156 0.1uF.1uF.17 DVI-D Interface The LCD interface on the processor is accessible from the DVI-D interface connector on the board.10V Adjusted for .1.DNI RES_0_0402.0 7. 8 1 2 DDC_I2C3_SCL DDC_I2C3_SDA C158 0.1uF.1uF. MMZ1608R301A TVDD 2 FERRITE. 17 65 DSS_PCLK DSS_ACBIAS DSS_HSY NC DSS_VSY NC D28 E27 D26 D27 TFP410 PGND TP RES_0_0402. DVI-D Interface One of the main changes in the DSS area on the –xM is the change of the DSS pin usage. The SW will take care of this automatically. These are the loading options to enable the new mode used by the –xM or the legacy mode used by the BeagleBoard.9V DVI_VREF R85 8.06K_1%_0603 Processor U4A t 100Ma 1 33 12 29 23 18 U11 PD0 PD1 PD2 PD3 PD4 PD5 PD6 PD7 PD8 PD9 PD10 PD11 PD12 PD13 PD14 PD15 PD16 PD17 PD18 PD19 PD20 PD21 PD22 PD23 IDCK+ IDCKDE VSY NC HSY NC VREF P12 TXD2TXD2+ 30 31 TXD2TXD2+ 3 1 2 15 16 TXD1TXD1+ 27 28 TXD1TXD1+ AUX_3V3 DVI_+5v HTPLG TXD0TXD0+ 9 24 25 HTPLG R86 10K TXD0TXD0+ 6 4 5 18 17 19 9 7 8 11 10 12 DAT2DAT2+ DAT2_S MTG1 SCL SDA MTG2 DAT1DAT1+ DAT1_S MTG3 +5V MTG4 DDC/CEC GND HPLG DAT0DAT0+ DAT0_S CLK_S CLK+ CLKCEC NC MTG1 MTG2 MTG3 MTG4 DSS_D0 DSS_D1 DSS_D2 DSS_D3 DSS_D4 DSS_D5 DSS_D6 DSS_D7 DSS_D8 DSS_D9 DSS_D10 DSS_D11 DSS_D12 DSS_D13 DSS_D14 DSS_D15 DSS_D16 DSS_D17 DSS_D18 DSS_D19 DSS_D20 DSS_D21 DSS_D22 DSS_D23 RP2C 3 RP2D 4 RP2E 5 RP2F 6 RP2G 7 RP2H 8 RP3A 1 RP3B 2 RP3C 3 RP3D 4 RP3E 5 RP3F 6 RP3G 7 RP3H 8 RP4A 1 RP4B 2 RP4C 3 RP4D 4 RP7H RP7G RP7F RP7E RP7D RP7C 8 7 6 5 4 3 14 10 13 10 12 10 11 10 10 10 9 10 16 10 15 10 14 10 13 10 12 10 11 10 10 10 9 10 16 10 15 10 14 10 13 10 9 10 10 10 11 10 12 10 13 10 14 10 RP4H 8 RP4F 6 RP4G 7 RP4E 5 AUX_3V3 R93 R94 R95 R96 R97 9 10 11 10 10 10 12 10 R90 R91 DVI_CLK+ DVI_DEN DVI_PUP DVI_DATA0 DVI_DATA1 DVI_DATA2 DVI_DATA3 DVI_DATA4 DVI_DATA5 DVI_DATA6 DVI_DATA7 DVI_DATA8 DVI_DATA9 DVI_DATA10 DVI_DATA11 DVI_DATA12 DVI_DATA13 DVI_DATA14 DVI_DATA15 DVI_DATA16 DVI_DATA17 DVI_DATA18 DVI_DATA19 DVI_DATA20 DVI_DATA21 DVI_DATA22 DVI_DATA23 DSS_D18 DSS_D19 DSS_D20 DSS_D21 DSS_D22 DSS_D23 AH26 AG26 AF18 AF19 AE21 AF21 RP5A RP5B RP5C RP5D RP5E RP5F 1 2 3 4 5 6 16 15 14 13 12 11 10 10 10 10 10 10 63 62 61 60 59 58 55 54 53 52 51 50 47 46 45 44 43 42 41 40 39 38 37 36 57 56 2 DVI_VSY NC 5 DVI_HSY NC 4 3 10 13 15 14 6 7 8 DVDD DVDD DVDD TVDD TVDD PVDD TXC+ TXC- 22 21 TVDD TXC+ TXCAUX_3V3 R89 R88 R87 510 1K VIO_1V8 4.1uF.
TFP410 is active when Hi. I2C3 data line. These resistors are in the form of Page 90 of 164 . and GPIO_170. Table 14.0 7. All of the signals used are described in Table 14. There are three other signals used to control the DVI-D that originate at the processor. These are I2C3_SCL. Used to communicate with the monitor to determine setting information.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C.17. TFP410.1 Processor LCD Interface The main driver for the DVI-D interface originates at the processor via the DSS pins. I2C3 clock line. Processor LCD Signals Signal dss_pclk dss_hsync dss_vsync dss_acbias dss_data0 dss_data1 dss_data2 dss_data3 dss_data4 dss_data5 dss_data6 dss_data7 dss_data8 dss_data9 dss_data10 dss_data11 dss_data12 dss_data13 dss_data14 dss_data15 dss_data16 dss_data17 dss_data18 dss_data19 dss_data20 dss_data21 dss_data22 dss_data23 GPIO_170 I2C3_SCL Description LCD Pixel Clock LCD Horizontal Synchronization LCD Vertical Synchronization Pixel data enable (TFT) output LCD Pixel Data bit 0 LCD Pixel Data bit 1 LCD Pixel Data bit 2 LCD Pixel Data bit 3 LCD Pixel Data bit 4 LCD Pixel Data bit 5 LCD Pixel Data bit 6 LCD Pixel Data bit 7 LCD Pixel Data bit 8 LCD Pixel Data bit 9 LCD Pixel Data bit 10 LCD Pixel Data bit 11 LCD Pixel Data bit 12 LCD Pixel Data bit 13 LCD Pixel Data bit 14 LCD Pixel Data bit 15 LCD Pixel Data bit 16 LCD Pixel Data bit 17 LCD Pixel Data bit 18 LCD Pixel Data bit 19 LCD Pixel Data bit 20 LCD Pixel Data bit 21 LCD Pixel Data bit 22 LCD Pixel Data bit 23 Powers down the TFP410 when Lo. Used to communicate with the monitor to determine setting information. I2C3_SDA. The PROCESSOR provides 24 bits of data to the DVI-D framer chip. Type O O O O O O O O O O O O O O O O O O O O O O O O O O O O O I/O Ball (Legacy) D28 D26 D27 E27 AG22 AH22 AG23 AH23 AG24 AH24 E26 F28 F27 G26 AD28 AD27 AB28 AB2 AA28 AA27 G25 H27 H26 H25 E28 J26 AC27 AC28 J25 AF14 Ball (720p) D28 D26 D27 E27 H26 H25 E28 J26 AC27 AC28 E26 F28 F27 G26 AD28 AD27 AB28 AB2 AA28 AA27 G25 H27 AH26 AG26 AF18 AF19 AE21 AF21 BLUE0 BLUE1 BLUE2 BLUE3 BLUE4 BLUE5 BLUE6 BLUE7 GREEN0 GREEN1 GREEN2 GREEN3 GREEN4 GREEN5 GREEN6 GREEN7 RED0 RED1 RED2 RED3 RED4 RED5 RED6 RED7 AF14 I2C3_SDA I/O AG14 AG14 10ohm series resistors are provide in the signal path to minimize reflections in the high frequency signals from the processor to the TFP410.1.
By default.5653 57 56 2 4 5 6 7 8 Page 91 of 164 .17.3V rail into the TFP410. The adjustable 1. In order to insure a noise free signal. During active video (DE = high). the transmitter encodes pixel data. high-speed bus that connects seamlessly with the 1. L4. the transmitter encodes HSYNC and VSYNC.8-V digital interface provides a low-EMI. Otherwise some of the bits will not have power supplied to them.8V. DATA[23:0]. there are three inductors. Table 15.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C. 7. The DVI interface on the BeagleBoard supports flat panel display resolutions up to XGA at 65 MHz in 24-bit true color pixel format. the ability to shut off the DVI-D display is not supported.17. This will be fixed on the next letter revision of the board. During the blanking interval (DE = low). VDD_PLL2 is not turned and must be activated by SW. 7.4 TFP410 Framer The TFP410 provides a universal interface to allow a glue-less connection to provide the DVI-D digital interface to drive external LCD panels.3 TFP410 Power Power to the TFP410 is supplied from the 3. The bottom 12 bits of the 24-bit pixel bus. Tied to ground to support the single ended mode.3V regulator in U1. the TPS2141. Single ended clock input. Both of these rails are controlled by the TPS65950 and must be set to 1. relative to the clock input IDCK±. L5. Horizontal sync input Vertical sync input These three inputs are the de-skew inputs DK[3:1]. Table 15 is a description of all of the interface and control pins on the TFP410 and how they are used on BeagleBoard.8V and 24-bit interface output by the processor.1. Data enable. two voltage rails must be active. and L6 that are used to filter the 3.1-V to 1. It should be noted that on the Rev A2 version.17. The maximum clock frequency of these signals is 65MHz.2 LCD Power In order for the DSS outputs to operate correctly out of the processor. A low level indicates a powered on receiver is detected at the Type I I I I I I I I I I Ball 36–47 50–55. TFP410 Interface Signals Signal Name DATA[23:12] DATA[11:0] IDCK+ IDCKDE HSYNC VSYNC DK3 DK2 DK1 Description The upper 12 bits of the 24-bit pixel bus. used to adjust the setup and hold times of the pixel data inputs DATA[23:0].0 resistor packs on the BeagleBoard. VIO_1V8 and VDD_PLL2. 7.
17. Lo to select the single ended clock mode. This allows the other modes for the TFP410 to be set by the other control pins. 7. This pin controls the amplitude of the DVI output voltage swing.17. are pulled low by the internal pulldown resistors in the TFP410.17. This is the default mode Page 92 of 164 . A HI selects normal operation and a LO selects the powerdown mode. EDGE. A high level indicates a powered on receiver is not detected. VREF) and state pins (PD.3 DSEL The DSEL pin is pulled low to select the single ended clock mode from the PROCESSOR.5.17. Selects the 24bit and single-edge clock mode. DSEL.1.1 ISEL The ISEL pin is pulled LO via R99 to place the TFP410 in the control pin mode with the I2C feature disabled. DKEN).0 MSEN ISEL BSEL DSEL EDGE DKEN VREF PD TGADJ differential outputs.5. The de-skew pins. determined by the value of the pullup resistor RTFADJ connected to 3.5 DKEN The DKEN signal is pulled HI to enable the de-skew pins. O 11 I I I I I I I 13 13 14 9 35 3 10 I 19 7. DK1-DK3.2 BSEL The BSEL pin is pulled HI to select the 24 bit mode for the Pixel Data interface from the processor. A high level selects the primary latch to occur on the rising edge of the input clock IDCK A HI level enables the de-skew controlled by DK[1:3] Sets the level of the input signals from the PROCESSOR. 7.4 EDGE The EDGE signal is pulled HI through R82 to select the rising edge on the IDCK+ lead which is the pixel clock from the PROCESSOR.3V. 7. 7.5 TFP410 Control Pins There are twelve control pins that set up the TFP410 to operate with the processor. This pin disables the I2C mode on chip.22.214.171.124.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C. Configuration is specified by the configuration pins (BSEL. Most of these pins are set by HW and do not require any intervention by the processor to set them.17. 7.
SN74LVC2G07. pin J25 comes in the safe mode. The DK1-DK3 pins adjust the timing of the clock as it relates to the data signals.6 DVI-D Connector Page 93 of 164 . indicates that there is a powered monitor plugged into the DVI-D connector. 7. If the GPIO_170 pin is HI.8V. 7. causing the signal to be pulled HI by R98.5.17. This is done by U188.8.131.52 TFADJ The TFADJ signal controls the amplitude of the DVI output voltage swing.7 VREF The VREF signal sets the voltage level of the DATA. DE. Because the PD signal on the TFP410 is 3.10 RSVD2 This unused pin is terminated to ground as directed by the TFP410 data manual. and IDCK+ leads from the processor.17.0 of operation. this signal must be converted to 3. determined by the value of R95. a 10K resistor.9V by R64 and R65. If desired. meaning it is not being driven. the output of U4 will also go LO. 7. This signal is not connected to the processor and is provided as a test point only. a non-inverting open drain buffer. placing the TFP410 in the power down mode. As the processor is 1. 7.17.8 PD The PD signal originates from the processor on the GPIO_170 pin. the level is set to .3V referenced.8V to match the processor. 7. 7.5.17. On power up.1.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C. the output will support being pulled up to 3.17.3V. When the processor powers on.5. 7. the resistors can be installed to pull the signals high. R109 insures that the signal is pulled LO. then the open drain signal is inactive. VSYNC. HSYNC. the TFP410 is disabled by R109. Even though U4 is running at 1.5.11 NC This unused pin is pulled HI as directed by the TFP410 data manual.3V. However. When GPIO_170 is taken low.17. it is not expected that any of the resistors will need to be installed. when low. putting the TFP410 in the power down mode.6 MSEN The MSEN signal.5.
1 Shield Wire Each signal has a shield wire that is used in the cable to provide signal protection for each differential pair.6. The Cable is not supplied with the BeagleBoard but is available from numerous cable suppliers and is required to connect a display to the BeagleBoard.4 DAT2+/DAT2- The differential signal pair DAT2+/DAT2. The BeagleBoard does not support HDMI but only the DVI-D component of HDMI. a resetable fuse. 7.6.17. a TXS0102. the I2C bus is level translated by U11.6.transmits the 8-bit red pixel data during active.8V I/O.1. is based on the I²C bus.6.17. 7.7 HDMI Support Page 94 of 164 . called DDC2B.17.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C. removing the need for an external resistor. 7. 7. It provides for a split rail to allow the signals to interface on both sides of the circuit. The monitor contains EEPROM programmed by the manufacturer with information about the graphics modes that the monitor can display. The current version of DDC.17.transmits the differential clock from the TFP410. 7.6.transmits the 8-bit green pixel data during active video.2 DAT0+/DAT0- The differential signal pair DAT0+/DAT0. This interface in the LCD panel is powered by the +5V pin on the connector through RT1.3 DAT1+/DAT1- The differential signal pair DAT1+/DAT1. Inside of TXS0102 is a pullup on each signal.0 In order to minimize board size. 7. 7.17.6 DDC Channel The Display Data Channel or DDC (sometimes referred to as EDID Enhanced Display ID) is a digital connection between a computer display and the processor that allows the display specifications to be read by the processor.transmits the 8-bit blue pixel data during active video and HSYNC and VSYNC during the blanking interval. a HDMI connector was selected for the DVI-D connection. As the processor is 1. This signal is tied directly to ground.5 TXC+/TXC- The differential signal pair TXC+/TXC.6.6. The standard was created by the Video Electronics Standards Association (VESA).17.17.
7. The audio and encryption features of HDMI are not supported by the BeagleBoard. You will need an active DVI-D to VGA adapter. P11 LCD Signals Pin# 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Signal DC_5V DC_5V DVI_DATA1 DVI_DATA0 DVI_DATA3 DVI_DATA2 DVI_DATA5 DVI_DATA4 DVI_DATA12 DVI_DATA10 DVI_DATA23 DVI_DATA14 DVI_DATA19 DVI_DATA22 I2C3_SDA DVI_DATA11 DVI_VSYNC DVI_PUP GND GND I/O PWR PWR O O O O O O O O O O O O I/O O O O PWR PWR Description DC rail from the Main DC supply DC rail from the Main DC supply LCD Pixel Data bit LCD Pixel Data bit LCD Pixel Data bit LCD Pixel Data bit LCD Pixel Data bit LCD Pixel Data bit LCD Pixel Data bit LCD Pixel Data bit LCD Pixel Data bit LCD Pixel Data bit LCD Pixel Data bit LCD Pixel Data bit I2C3 Data Line LCD Pixel Data bit LCD Vertical Sync Signal Control signal for the DVI controller. Table 16 shows the signals that are on the P11 connector. This may require a change in the software running on the Beagle. 7.6.0 The digital portion of the DVI-D interface is compatible with HDMI and is electrically the same. This is due to the routing on the PCB where we allowed the routing to take precedence to get it to route with no addition of layers to the design. DVI is enabled. Another option for these signals is to buy a board that connects to the J4 and J5 expansion connectors and generates the RGB signals for the VGA display. Buying a DVI to VGA adapter connector will not work on a VGA display. Ground bus Ground bus Page 95 of 164 . When Hi. Can be used to activate circuitry on adapter board if desired.18 LCD Expansion Headers Access is provided on the -XM Rev A to allow access to the LCD signals. which provides RGB analog signals. is not supported by the BeagleBoard. Whether or not the Beagle will support those monitors is dependent on the timings that are used on the BeagleBoard and those that are accepted by the monitor.8 DVI to VGA The analog portion of DVI.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C.1. A standard HDMI cable may be used to connect to the HDMI input of monitors or televisions. You will notice that the signals are not in a logical order or grouping. Table 16.17.
The 3.3V rail also has limited capacity on the power as well.0 The current available on the DC_5V rail is limited to the available current that remains from the DC supply that is connected to the DC power jack on the board. Page 96 of 164 . If the TFP410 is disabled on the Beagle. Table 17 shows the signals that are on connector P13. It is not required that the TFP410 be disabled when running an adapter card.8V rail is for level translation only and should not be used to power circuitry on the board.19 S-Video A single S-Video port is provided on the BeagleBoard. then 80mA is freed up for use on an adapter card connected to the LCD signals connectors.8V except the DVI_PUP which is a 3. P13 LCD Signals I/O PWR PWR O O O O O O O O O Pin# 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Signal 3. Table 17. All signals are 1. 7. It is suggested that the 5V rail be used to generate the required voltages for an adapter card.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C.8V buffer reference rail.3V VIO_1V8 DVI_DATA20 DVI_DATA21 DVI_DATA17 DVI_DATA18 DVI_DATA15 DVI_DATA16 DVI_DATA7 DVI_DATA13 DVI_DATA8 NC DVI_DATA9 I2C3_SCL DVI_DATA6 DVI_CLK+ DVI_DEN DVI_HSYNC GND GND Description 3. Figure 45 is the design of the SVideo interface. Keep in mind that some of that power is needed by the USB Host power rail and if more power is needed for the expansion board. the main DC power supply current capability may need to be increased.3V reference rail 1.3V signal.1. but the power should be taken into consideration when making this decision. LCD Pixel Data bit LCD Pixel Data bit LCD Pixel Data bit LCD Pixel Data bit LCD Pixel Data bit LCD Pixel Data bit LCD Pixel Data bit LCD Pixel Data bit LCD Pixel Data bit No connect LCD Pixel Data bit I2C3 Clock Line LCD Pixel Data bit DVI Clock Data Enable Horizontal Sync Ground bus Ground bus I/O O O O O PWR PWR The 1.
1% 0. including the input VBAT rail.3uh inductor are across the feedback resistors to improve the quality of the S-Video signal. 7.65K. USB cameras may also be used if desired. but this interface has many HW assisted features and can support camera modules from VGA to 5MP resolutions.10V Processor W28 Y 28 Y 27 W27 W26 TV_OUT2 TV_OUT1 TV_VFB1 TV_VFB2 TV_VREF U4B 1 2 3.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C.20 Camera Port A new addition to the –xM is the camera port.DNI C9 0. This camera port uses the native camera interface of the processor.3uH CONN_SVideo Figure 45.0 L2 C10 47pF L3 C11 47pF P4 P1 P2 P3 P4 5 6 7 1 2 3 4 MH1 MH2 MH3 R32 R33 R34 1.1. Figure 37 reflects the filtering that is used on these rails. S-Video Interface Table 18 is the list of the signals on the S-Video interface and their definitions. Table 18. The connector configuration is designed to be compatible with the camera modules from Leopard Imaging. Page 97 of 164 .1% 1. A 47pf CAP and 3. Figure 46 is the Camera interface design.1uF.3uH 1 2 3. S-Video Interface Signals Signal tv_out1 tv_out2 tv_vref tv_vfb1 tv_vfb2 I/O O O I O O Description TV analog output composite TV analog output S-VIDEO Reference output voltage from internal bandgap Amplifier feedback node Amplifier feedback node Power to the internal DAC is supplied by the TPS65950 via the VDAC_1V8 rail.65K.
7K DC_5V_USB 2 1 3 U16 IN OUT 4 6 5 U16_FB R111 56.7K 4.10V C213 1uF.1% R113 32. Page 98 of 164 . Each of these are described in the following sections.4K.SDA I2C.1. The power is controlled by setting the LEDA signal on the TPS65950.CNTL.3V and is controlled by turning on and off the USB HUB power rail at U16.20.SCL 4.3V.OUT LEDA B3 G16 F15 C128 1uF.20.0 0 DC_5V R19 R20 I2C.1.2K. Camera Port Interface The design of the camera interface is described in more detail in the remainder of this section.0 U4B AE15 AF15 C25 B23 C23 C26 B25 L27 K27 L28 K28 A25 D24 C24 B24 AH17 AG17 C27 A24 A23 J21 K21 F618-MG -D051-XX-CF358 VIO_1V8 D4 D5 U7B TPS65950 VAUX4. Access to this register is via the I2C2 interface on the processor.7uF.6. It is selected by installing either R151 or R154.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C. The default is set at 3.10V CAM_CLKA CAM_WEN CAM_FLD P10 CAM_D11 CAM_D10 CAM_D9 CAM_D8 CAM_D7 CAM_D6 CAM_D5 CAM_D4 CAM_D3 CAM_D2 CAM_D1 CAM_D0 1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 I2C2_SDA I2C2_SCL CMOS_OE CAM_IO R83 0. 7.1% HUB_3V3 SHDN GND GND ADJ C177 4.0603 TL1963A Figure 46.1 CAM_ANA Power The DC input can be either 5V or 3.OUT VAUX3.0603 VIO_1V8 R155 10K I2C2_SDA I2C2_SCL CAM_XCLKA CAM_WEN CAM_FLD CAM_D11 CAM_D10 CAM_D9 CAM_D8 CAM_D7 CAM_D6 CAM_D5 CAM_D4 CAM_D3 CAM_D2 CAM_D1 CAM_D0 CAM_PCLK CAM_HS CAM_VS I2C1_SDA I2C1_SCL CAM_ANA CAM_DIGITAL R154 R151 DNI.3V.1 Camera Power There are three main power sources required by the camera module.0 OMAP3730_ES1.CNTL. 7.
20. it will damage the processor if the camera module is inserted. Camera Interface Signals Signal cam_hs cam_vs cam_xclka cam_d0 cam_d1 cam_d2 cam_d3 cam_d4 Function HS VS Clock Camera Data Camera Data Camera Data Camera Data Camera Data Description Camera Horizontal Synchronization Camera Vertical Synchronization Camera Clock Output Camera image data bit 0 Camera image data bit 1 Camera image data bit 2 Camera image data bit 3 Camera image data bit 4 I/O I/O I/O O I I I I I Processor A24 C25 AG17 AH17 B24 C24 D24 Page 99 of 164 . This will set the level of all of the interface signals to the processor.3 CAM_IO Power The I/O power is a 1.20.8V rail that is supplied by the TPS65950.1.8V.1.20. 7. This makes the 3. 7. If this rail is set to a voltage higher than 1. Table 19. The power is controlled via the I2C1 interface from the processor by setting the VAUX4 regulator to 1.8V.3V rail more suitable as it allows you to totally remove the power form the camera module. There are no pullups on the board for the I2C to prevent conflict with add on boards that do have the pullups.1. It is provided for future use. The I/O status of each pin is defined from the perspective of the processor. If an add-on board is not used. 7. The cam_wen signal is labeled as CMOS_OE on the schematic.20. This is used for the internal logic in the camera module. All of the current camera modules do not use this signal and this signal has no affect on the operation of the camera modules. 7.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C.3 Processor Camera Port Interface Table 19 shows the signals that are the interface between the processor and the camera modules.0 The 5V is on whenever a power source is applied to the board and cannot be controlled.2 Camera I2C Port The processor uses the I2C2 port to communicate to the camera module to set the registers in the device.8V.2 CAM_DIGITAL Power The digital power is a 1. the SW will need to enable the internal pullups on the I2C2 signals in order for the interface to work.8V rail that is supplied by the TPS65950. The power is controlled via the I2C1 interface from the processor by setting the VAUX3 regulator to 1.
These are signals that are not used by the camera module.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Camera image data bit 5 Camera image data bit 6 Camera image data bit 7 Camera image data bit 8 Camera image data bit 9 Camera image data bit 10 Camera image data bit 11 Camera field identification Camera pixel clock Camera Write Enable Revision C. The table covers the currently available camera modules that are compatible with the Beagle –xM. you must take into account the order of the bits.1. In order to work with the different modules. these signals need to be tied low by enabling the internal pulldown resistors. Table 20 shows the mapping of the pins on the camera sensors to the pins on the processor.3MP LI-LBCM1M1 10 D9 MCLK D8 GND D7 SDATA D6 SCLK D5 RESET D4 OE D3 GND D2 CAM_IO D1 CAM_IO D0 GND PULL-DOWN 2MP LI-LBCM2M1 10 D9 MCLK D8 GND D7 SDATA D6 SCLK D5 RESET D4 OE D3 GND D2 CAM_IO D1 CAM_IO D0 GND PULL-DOWN 3MP LI-BCM3M1 8 D7 MCLK D6 GND D5 SDATA D4 SCLK D3 RESET D2 OE D1 GND D0 CAM_IO PULL-DOWN CAM_IO PULL-DOWN GND PULL-DOWN 5MP LI-LBCM5M1 12 D11 MCLK D10 GND D9 SDATA D8 SCLK D7 RESET D6 OE D5 GND D4 CAM_IO D3 CAM_IO D2 GND D1 VGA LI-LBCMVGA 10 D9 MCLK D8 GND D7 SDATA D6 SCLK D5 RESET D4 OE D3 GND D2 CAM_IO D1 CAM_IO D0 GND PULL-DOWN Page 100 of 164 . Resolution Camera Module Part Number Data Width---> PIN NAME I/O/V 1 D11 I 2 MCLK O 3 D10 I 4 GND PWR 5 D9 I 6 SDATA I/O 7 D8 I 8 SCLK I/O 9 D7 I 10 RESET O 11 D6 I 12 OE O 13 D5 I 14 GND PWR 15 D4 I 16 CAM_IO PWR 17 D3 I 18 CAM_IO PWR 19 D2 I 20 GND PWR 21 D1 I Camera Pin Signal Mapping 1. the pin should be set up as a GPIO pin. You will notice some of the lettering in red. In order for the data to be correct. Table 20. When used as a reset.0 cam_d5 cam_d6 cam_d7 cam_d8 cam_d9 cam_d10 cam_d11 cam_fld cam_pclk cam_wen Camera Data Camera Data Camera Data Camera Data Camera Data Camera Data Camera Data RESET Pixel Clock I I I I I I I I/O I I A25 K28 L28 K27 L27 B25 C26 C23 C27 B23 The cam_fld signal is used as a RESET signal to the camera board.
20.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual GND PULL-DOWN CAM_ANA CAM_ANA CAM_ANA PCLK GND HS CAM_DIG VS CAM_DIG GND GND GND PULL-DOWN CAM_ANA CAM_ANA CAM_ANA PCLK GND HS CAM_DIG VS CAM_DIG GND GND GND PULL-DOWN CAM_ANA CAM_ANA CAM_ANA PCLK GND HS CAM_DIG VS CAM_DIG GND GND Revision C. Figure 47. The figure below shows the different modules that can be used.0 22 23 24 25 26 27 28 29 30 31 32 33 34 GND D0 CAM_ANA CAM_ANA CAM_ANA PCLK GND HS CAM_DIG VS CAM_DIG GND GND PWR I PWR PWR PWR I PWR I PWR I PWR PWR PWR GND PULL-DOWN CAM_ANA CAM_ANA CAM_ANA PCLK GND HS CAM_DIG VS CAM_DIG GND GND GND D0 CAM_ANA CAM_ANA CAM_ANA PCLK GND HS CAM_DIG VS CAM_DIG GND GND 7.1. Camera Modules Page 101 of 164 .4 Camera Modules The camera module can be purchased from Leopard Imaging or one of their distributors. The part numbers can be found in Table 20. It uses the same modules as the LeopardBoard DM355 version.
21.10V232_C2.1uF. Figure 48 shows the design of the RS232 port.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C.1uF.DNI 0.10V 232_C1+2 C148 0.1uF.1uF.10V 232OE 15 U9 C1+ C1C2+ C2DIN ROUT EN FORCEON VCC VV+ 7 3 232_V232_V+ C149 0. The 3MP module is next on the list.1uF. AUX_3V3 VIO_1V8 C147 0.DNI 0 P8 232_PIN2 232_PIN3 1 2 3 4 5 6 7 8 9 1 2 3 4 5 6 7 8 9 SHL1 10 GND FORCEOFF SHL2 11 14 SN65C3221EPW DSUB_FEMALE_SHORT Figure 48.10V DOUT RIN INVALID 13 8 10 16 RS232_TX1 RS232_RX1 R78 R79 R80 R82 0 0.1uF. It is expected that all of the listed modules will work and no complications are expected as they are all compatible at the hardware level. UART3_Tx and UART3_Rx. Other boards will be added as the SW drivers are completed.2 Level Translator Page 102 of 164 .1uF.1 Processor Interface Two lines.10V C151 0. only the VGA camera board has been confirmed to work on the –xM board. 7.21 RS232 Port A single RS232 port is provided on the BeagleBoard and provides access to the TX and RX lines of UART3 on the processor.4 232_C2+5 C150 0.6 11 9 1 12 7 8 1 2 UART3_TX_3V UART3_RX_3V C146 0.0 At this time.10V232_C1. 7. are provided by the processor.21.1. RS232 Interface Design 7.10V U10 3 3 UART3_TX UART3_RX R81 10K 3 5 4 6 VCCA VCCB A1 B1 A2 B2 OE GND TXS0102DCU AUX_3V3 C143 0. The UART3 function contains a programmable baud generator and a set of fixed dividers that divide the 48-MHz clock input down to the expected baud rate and also supports auto bauding.
3V. 7. your results may vary based on cabling. This requires that the voltage levels be translated.3 RS232 Transceiver The RS232 transceiver used is the SN65C322 which consists of one line driver. This is new on the –xM version and replaces the 10 pin header. all outputs are placed in the high-impedance state.3V rail and is active at power up. This is accomplished by the TXS0102 which is a two-bit noninverting translator that uses two separate configurable powersupply rails. Page 103 of 164 . The A port tracks VCCA.5-V supply. When the output-enable (OE) input is low.0 All of the I/O levels from the processor are 1. While the processor can easily drive a 1Mbit/S rate. 3. P9. These devices provide the electrical interface between an asynchronous communication controller and the serial-port connector.3V. Figure 49 shows the connection of all of these indicators. The charge pump and four small external capacitors allow operation from a single 3-V to 5. The SN65C3221 operates at data signaling rates up to 1 Mbit/s and a driver output slew rate of 24 V/ms to 150 V/ms. one line receiver. including GND).8V while the transceiver used runs at 3.1.4 Connector Access to the RS232 port is through a 9 pin DB9 connector. 7.8V and the B port tracks VCCB.22 Indicators There are five green indicators on the BeagleBoard: o o o o o Power PMU_STAT USER0 USER1 HUB Power All of the green LEDs are programmable under software control. the OE is tied high via a 10K ohm resistor to insure that it is always on. and the loads and drive capability on the other end of the RS232 port.21. A standard male to female straight DB9 cable can be used or a USB to DB9 adapter can be plugged direct into the board. distance. and a dual charge-pump circuit with ±15-kV IEC ESD protection pin to pin (serial-port connection pins. The transceiver is powered from the 3.21. 1. This allows the port to be used for UART based peripheral booting over the port. 7. This allows for low-voltage bidirectional translation between the two voltage nodes.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C. In this design.
Indicator Design 7.4K. The first circuit can provide up to 160 mA and the second. is used to drive the LED that is connected to the VBAT rail through a resistor. The second driver.1. D5.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C. Turning on this LED is not something that a person should try to do as it indicates that the user is not paying attention and has plugged in a potentially damaging power supply into the power jack. Indicator D5 does not indicate which power source is being used to supply the main power to the board but only that it is active. Software does have the ability to turn off this regulator and thereby turning off the LED.1% R113 32.1 LTST-C190GKT GRN VIO_1V8 4 U2 LDO_IN LDO_PLDN LDO_OUT 6 LDO_EN ADJ LDO_PG 3 2 SW_IN SW_IN SW_OUT SW_OUT SW_PLDN 10 11 AUX_3V3 D5 LTST-C190GKT 5 6 R39 Q1A RN1907 330 D6 VBAT 1 U18A GRN 6 10K GRN U4B Processor GPIO_149 GPIO_150 AA9 W8 2 USER0 R40 VBAT 330 D7 LTST-C190GKT 9 8 2 1 3 5 RN1907 DC_IN 5 D13 LTST-C150CKT GND PPAD VOLTERR_R 4 DC_IN R121 U19 4 5 2 VDD SENSE RSET GND NC 3 1 VOLTDET 2 R130 10K 510 VOLT_ERR 6 Q2A RN1907 TPS3803G15 Figure 49.P LEDGND GPIO.3V rail supply and ground.B. 50 mA. The TPS65950 provides LED driver circuitry to power two LED circuits that can provide user indicators. By default this is always disabled on power up.B output. LED.22.M LEDA/VIBRA.1 Power Indicator This indicator.2 PMU Status Indicator This output is driven from the TPS65950 using the LED. 7. Each LED circuit is independently controllable for basic power (on/off) control and illumination level (using PWM).6.1% 4.7uF. connects from the 3. It indicates that the entire power path is supplying the power to the board.3V.2K. DC_5V_USB 2 1 3 U16 IN OUT 4 HUB_3V3 C177 6 5 U16_FB R111 56. Page 104 of 164 1 7 15 10k 47k SN74LVC2G06DCKR POWER R12 13 12 14 1 330 USER1 10k 47k Q1B SW_EN SW_PG TPS2141PWP GRN 10k 47k .0603 D14 SHDN GND GND ADJ TL1963A USB ACTIVE LTST-C190GKT GRN VBAT LTST-C190GKT GRN R64 D12 330 G15 F15 F16 N12 U7A TPS65950 R136 330 R8 VBAT LEDB/VIBRA.0 There is also a single RED LED on the board.22.
7.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C.5 Overvoltage Indicators The Over Voltage LED. It is possible to set the LED to flash automatically without software control if desired. TPS3803. turns on the LED. A transistor pair. turns on whenever the DC voltage exceeds 5. 7. register-controlled. that can be driven directly from a GPIO pin on the processor.22. The output level of the processor is 1. D6 and D7.1. Page 105 of 164 . This output is driven from the TPS65950 using the LED. duty cycle based on a nominal 4-Hz cycle which is derived from an internal 32-kHz clock. 7.4 HUB Power Indicator The HUB power LED. D13.22. D14. Figure 50 shows the interconnection to the processor. The processor can control the LED by communicating via the I2C to the TPS65950. A logic level of 1 will turn the LED on. RN1907 is used to drive the LEDs from the VBAT rail.A output.23 JTAG A JTAG header is provided to allow for advanced debugging on the BeagleBoard by using a JTAG based debugger.22. These can be used for any purpose by the software.8V and the current sink capability is not enough to drive an LED with any level of brightness. 7.3 User Indicators There are two user LEDs.0 The PWM inside the TPS65950 can be used to alter the brightness of the LED if desired or it can be turned on or off by the processor using the I2C bus.3V. is turned on whenever the USB HUB power is active. The detection circuit. The PWM is programmable.
1.8V level.23.24 Main Expansion Header Page 106 of 164 .1uF.10V R24 R25 R26 R27 R28 R29 R30 R31 10K JTAG_TDO JTAG_nTRST JTAG_TMS JTAG_TDI JTAG_TCK JTAG_RTCK JTAG_EMU0 JTAG_EMU1 Figure 50. All signals are a 1.2 JTAG Connector The JTAG interface uses a 14 pin connector. Table 21 describes the signals on the JTAG connector.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual VIO_1V8 VIO_1V8 Revision C.0 P3 2 4 8 10 12 14 2 4 8 10 12 14 1 3 5 7 9 11 13 1 3 5 7 9 11 13 JTAG_TMS JTAG_TDI JTAG_TDO JTAG_RTCK JTAG_TCK JTAG_EMU0 HDR 2x7 JTAG_EMU1 JTAG_nTRST AA19 AA17 AA18 AA20 AA13 AA12 AA11 AA10 Processor U4B 10K 10K 100K 100K 100K 100K 100K C8 0.23. All JTAG emulator modules should be able to support this interface.1 Processor Interface The JTAG interface connects directly to the OMAP processor. 7. JTAG Interface 7. JTAG Signals Signal JTAG_TMS JTAG_TDI JTAG_TDO JTAG_RTCK JTAG_TCK JTAG_nTRST JTAG_EMU0 JTAG_EMU1 Description Test mode select Test data input Test Data Output ARM Clock Emulation Test Clock Test reset Test emulation 0 Test emulation 1 I/O I/O I O O I I I/O I/O 7. Table 21. Contact your emulator supplier for further information or if an adapter is needed.
24. *= this indicates that there is a signal connected when this mode is selected.1. Each pin can be set individually for a different mux mode. Table 22 shows all of the signals that are on the expansion header. Access to these other pins is not provided on the expansion connector. As the processor has a multiplexing feature. The first column is the pin number of the expansion connector. multiple signals can be connected to certain pins to add additional options as it pertains to the signal available.1 Processor Interface The main purpose of the expansion connector is to route additional signals from the processor. X= there is no signal connected when this mode is selected Z= this is the safe mode meaning neither input to output. 7.8V. but it has no useful purpose without other pins being available. Figure 51 is the design of the expansion connector and the interfaces to the processor. Main Expansion Header Processor Connections CAUTION: The voltage levels on the expansion header are 1. Exposure of these signals to a higher voltage will result in damage to the board and a voiding of the warranty.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C. Page 107 of 164 . Following is the legend for Table 22. This is the default mode on power up. This allows any of the listed mux modes to be set on a pin by pin basis by writing to the pin mux register in software.0 The expansion header is provided to allow a limited number of functions to be added to the BeagleBoard via the addition of a daughtercard. DC_5V Processor U3B McBSP3_DX McBSP3_CLKX McBSP3_FSX McBSP3_DR McBSP1_DX McBSP1_CLKX McBSP1_FSX McBSP1_DR McBSP1_CLKR McBSP1_FSR I2C2_SCL I2C2_SDA AB26 AA25 AE5 AE6 V21 W21 K26 U21 Y21 AA21 AF15 AE15 UART2_CTS MCBSP3_CLKX MCBSP3_FSX MCBSP3_DR MCBSP1_DX MCBSP1_CLKX MCBSP1_FSX MCBSP1_DR MCBSP1_CLKR MCBSP1_FSR I2C2_SCL nRESET 2 4 6 8 10 12 14 16 18 20 22 24 26 28 J3 VIO_1V8 U3A MMC2_DAT7 MMC2_DAT6 MMC2_DAT5 MMC2_DAT4 MMC2_DAT3 MMC2_DAT2 MMC2_DAT1 MMC2_DAT0 MMC2_CMD MMC2_CLKO I2C2_SDA nUSB_DC_EN AE3 AF3 AH3 AE4 AF4 AG4 AH4 AH5 AG5 AE2 1 3 5 7 9 11 13 15 17 19 21 23 25 27 Processor MMC2_DAT7 MMC2_DAT6 MMC2_DAT5 MMC2_DAT4 MMC2_DAT3 MMC2_DAT2 MMC2_DAT1 MMC2_DAT0 MMC2_CMD MMC2_CLK To the Reset circuitry HEADER 14X2 To the power circuitry Figure 51.
2 Expansion Signals This section provides more detail on each of the signals available on the expansion connector. The columns labeled 0-7 represent each of the pin mux modes for that pin. Expansion Connector Signal Groups Description SD/MMC Port 2 I/O I/O EXP 3 OMAP AE3 Mux 1 Page 108 of 164 . Signal MMC2_DAT7 SD/MMC data pin 7. If you use these signals in their respective groups and that is the only function you use.0 The second column is the pin number of the processor. Whether or not the signals you need are all available. They are grouped by functions in Table 23 along with a description of each signal and the MUX setting to activate the pin. Only one signal per pin is available at any one time. By setting this value in the control register. depends on the muxing function on a per-pin basis. all of the signals are available.24.1. Any pin can be set with the mux register setting. These setting are on a pin by pin basis. and the applicable signal will be routed to the pin on the expansion connector.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C. this signal will be routed to the corresponding pin of the expansion connector. Table 22. Table 23. EXP 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 Processor 0 Expansion Connector Signals 1 2 VIO_1V8 DC_5V * GPT9_PWMEVT * GPT11_PWMEVT * X X GPT10_PWMEVT X McBSP3_DX X McBSP3_CLKX X McBSP3_FSX X McBSP3_DR X X X * X X REGEN Nreset GND GND 3 4 5 6 7 AE3 AB26 AF3 AA25 AH3 AE5 AE4 AB25 AF4 V21 AG4 W21 AH4 K26 AH5 U21 AG5 Y21 AE2 AA21 AE15 AF15 25 26 27 28 MMC2_DAT7 UART2_CTS MMC2_DAT6 UART2_TX MMC2_DAT5 McBSP3_FSX MMC2_DAT4 UART2_RTS MMC2_DAT3 McBSP1_DX MMC2_DAT2 McBSP1_CLK X MMC2_DAT1 McBSP1_FSX MMC2_DAT0 McBSP1_DR MMC2_CMD McBSP1_CLK R MMC2_CLKO McBSP1_FSR I2C2_SDA I2C2_SCL * McBSP3_DX * McBSP3_CLKX * UART2_RX * McBSP3_DR McSPI3_CS0 McSPI4_SIMO McSPI3_CS1 X X McSPI4_CS0 McSPI3_SOMI McSPI4_SOMI McSPI3_SIMO McSPI4_CLK McSPI3_CLK X X X * X * X * X * X X X X X X x X X X X X Z X X GPIO_139 GPIO_144 GPIO_138 GPIO_146 GPIO_137 GPIO_143 GPIO_136 GPIO_145 GPIO_135 GPIO_158 GPIO_134 GPIO_162 GPIO_133 GPIO_161 GPIO_132 GPIO_159 GPIO_131 GPIO_156 GPIO_130 GPIO_157 GPIO_183 GPIO_168 * X * X * * X X X X X X X X X X X X X X X X * X X X X X X X X X X X X X X X X X X X X X Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z 7.
REF: BB_SRM_xM MMC2_DAT6 MMC2_DAT5 MMC2_DAT4 MMC2_DAT3 MMC2_DAT2 MMC2_DAT1 MMC2_DAT0 MMC2_CMD MMC_CLKO McBSP1_DR McBSP1_CLKS McBSP1_FSR McBSP1_DX McBSP1_CLKX McBSP1_FSX McBSP1_CLKR I2C2_SDA I2C2_SCL McBSP3_DR McBSP3_DX McBSP3_CLKX McBSP3_FSX GPIO_130 GPIO_131 GPIO_132 GPIO_133 GPIO_134 GPIO_135 GPIO_136 GPIO_137 GPIO_138 GPIO_139 GPIO_143 GPIO_144 GPIO_145 GPIO_146 GPIO_156 GPIO_158 GPIO_159 GPIO_161 GPIO_162 GPIO_168 GPIO_183 McSPI3_CS0 McSPI3_CS1 McSPI3_SIMO McSPI3_SOMI McSPI3_CLK McSPI4_SIMO McSPI4_SOMI McSPI4_CS0 McSPI4_CLK UART2_CTS UART2_RTS UART2_RX UART2_TX GPT9_PWMEVT BeagleBoard-xM System Reference Manual I/O I/O I/O I/O I/O I/O I/O I/O O I N/A I/O I/O I/O I/O I/O IOD IOD I I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O O O I/O I/O I/O I/O I/) O I/O I/O O I O O 5 7 9 11 13 15 17 19 21 18 N/A 22 12 14 16 20 23 24 10.0 AF3 AH3 AE4 AF4 AG4 AH4 AH5 AG5 AE2 1 1 1 1 1 1 1 1 1 SD/MMC data pin 6. Can be used as an interrupt pin. Can be used as an interrupt pin. SD/MMC data pin 1. Can be used as an interrupt pin. Can be used as an interrupt pin. GP Input/Output pin.16 21 19 17 15 13 11 9 7 5 3 8 4 10 6 20 12 18 16 14 24 23 11 13 19 17 21 12 18 16 20 4 10 8 6 4 Revision C. GP Input/Output pin. GP Input/Output pin. Can be used as an interrupt pin. McBSP Port 1 Multi channel buffered serial port receive -------------------------------------------------------------------------Multi channel buffered serial port transmit frame sync RCV Multi channel buffered serial port transmit Multi channel buffered serial port transmit clock Multi channel buffered serial port transmit frame sync XMT Multi channel buffered serial port receive clock I2C Port 2 I2C data line. GP Input/Output pin. Can be used as an interrupt pin. GP Input/Output pin.14 8. GP Input/Output pin. SD/MMC clock signal. Can be used as an interrupt pin. Can be used as an interrupt pin. SD/MMC data pin 0.1. GP Input/Output pin. Can be used as an interrupt pin. Can be used as an interrupt pin. GP Input/Output pin. Can be used as an interrupt pin. Can be used as an interrupt pin. GP Input/Output pin. GP Input/Output pin. GP Input/Output pin. Can be used as an interrupt pin. GP Input/Output pin. UART request to send UART receive UART transmit GPT PWM PWM or event for GP timer 9 Page 109 of 164 . SD/MMC command signal. McSPI Port 3 Multi channel SPI chip select 0 Multi channel SPI chip select 1 Multi channel SPI slave in master out Multi channel SPI slave out master in Multi channel SPI clock McSPI Port 4 Multi channel SPI slave in master out Multi channel SPI slave out master in Multi channel SPI chip select 0 Multi channel SPI clock UART Port 2 UART clear to send. Can be used as an interrupt pin. GP Input/Output pin. GP Input/Output pin. GP Input/Output pin. Can be used as an interrupt pin. Can be used as an interrupt pin. Can be used as an interrupt pin. SD/MMC data pin 3.18 4. Can be used as an interrupt pin. GP Input/Output pin.12 6. Can be used as an interrupt pin. SD/MMC data pin 2. GP Input/Output pin. SD/MMC data pin 5. I2C clock line McBSP Port 3 Multi channel buffered serial port receive Multi channel buffered serial port transmit Multi channel buffered serial port receive clock Multi channel buffered serial port frame sync transmit General Purpose I/O Pins GP Input/Output pin. GP Input/Output pin. GP Input/Output pin. GP Input/Output pin. Can be used as an interrupt pin. Can be used as an interrupt pin. SD/MMC data pin 4.
24. Refer to the processor and TPS65950 documentation for more information. The purpose of this signal is to provide a means to control power circuitry on the expansion card to turn on and off the voltages. This insures that the power on the expansion board is turned on at the appropriate time. It is not intended to power a lot of circuitry on the expansion board. All signals from the BeagleBoard are at 1.8V rail which is supplied by the TPS65950. Depending on what circuitry is provided on the expansion board.8V. Table 24 shows the options for P11 and Table 25 shows the options for P135. The MUX: column indicates which MUX mode must be set for each pin to make the respective signals accessible on the pins of the processor. 7.8V level signal.25 LCD Expansion Header If you choose not to use the LCD headers for access to the LCD signals or for the DVI-D interface.3 Power The expansion connector provides two power rails.1. After power up. The same restriction exits on this rail as mentioned in the USB section.4 Reset The nRESET signal is the main board reset signal.24. The amount of available power to an expansion board depends on the available power from the DC supply or the USB supply from the PC.24. they can also be used for other functions on the board based on the pin mux setting of each pin. The first is the VIO_1. a system reset can be generated by the expansion board by taking this signal low. 7. This rail is limited in the current it can supply from the TPS65950 and what remains from the current consumed by the BeagleBoard and is intended to be used to provide a rail for voltage level conversion only. this signal will act as an input to reset circuitry on the expansion board.5 Power Control There is an additional open-drain signal on the connector called REGEN. This signal is a 1.0 PWM or event for GP timer 11 PWM or event for GP timer 10 7. an additional delay may be needed to be added before the circuitry is activated. Table 24. 7. P11 GPIO Signals MUX:0 DATA1 Pin# 3 Signal DVI_DATA1 MUX:2 UART1_RTS MUX:4 GPIO71 Page 110 of 164 . The other rail is the DC_5V.REF: BB_SRM_xM GPT11_PWMEVT GPT10_PWMEVT BeagleBoard-xM System Reference Manual O O 10 8 Revision C. When the board powers up.
these pins have multiple functions mapped per pin. P13 GPIO Signals MUX:0 DATA20 DATA21 DATA17 DATA18 DATA15 DATA16 DATA7 DATA13 DATA8 DATA9 I2C3_SCL DATA6 PCLK DEN HSYNC Pin# 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 Signal DVI_DATA20 DVI_DATA21 DVI_DATA17 DVI_DATA18 DVI_DATA15 DVI_DATA16 DVI_DATA7 DVI_DATA13 DVI_DATA8 NC DVI_DATA9 I2C3_SCL DVI_DATA6 DVI_CLK+ DVI_DEN DVI_HSYNC MUX:2 McSPI3_SOMI McSPI3_CS0 McSPI3_CLK UART1_RX UART1_TX - MUX:4 GPIO90 GPIO91 GPIO87 GPIO88 GPIO85 GPIO86 GPIO77 GPIO83 GPIO78 GPIO79 GPIO_76 GPIO66 GPIO69 GPIO67 7. As is the case with many of the signals on the various connectors. the pin muxing register will need to be set as needed on a per pin basis.1. In order to access other signals on these pins.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual DVI_DATA0 DVI_DATA3 DVI_DATA2 DVI_DATA5 DVI_DATA4 DVI_DATA12 DVI_DATA10 DVI_DATA23 DVI_DATA14 DVI_DATA19 DVI_DATA22 I2C3_SDA DVI_DATA11 DVI_VSYNC DVI_PUP DATA0 DATA3 DATA2 DATA5 DATA4 DATA12 DATA10 DATA23 DATA14 DATA19 DATA22 I2C3_SDA DATA11 VSYNC DVI_PUP UART1_CTS UART3_TX UART3_RX McSPI3_SIMO McSPI3_CS1 - Revision C. Table 26 below is the pin out of the MMC Connector.0 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 GPIO70 GPIO73 GPIO72 GPIO75 GPIO74 GPIO82 GPIO79 GPIO93 GPIO84 GPIO89 GPIO92 GPIO81 GPIO68 - Table 25. Page 111 of 164 .26 Auxiliary Expansion Header New to the –xM version is the addition of expansion header called the Auxiliary Expansion Header.
All of these signals are 1. For a more complete description. Make sure that you set the correct mux mode when using these signals for their various configurations. In order to access these signals. Table 28 is a description of these signals.26. please refer to the datasheet or Technical Reference Manuals. Page 112 of 164 . then a level shifter will be required. PIN 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 SIGNAL MMC3_DAT2 MMC3_DAT7 MMC3_DAT3 GPIO_16 GPIO_15 MMC3_DAT1 MMC3_DAT5 MMC3_DAT4 MMC3_DAT0 MMC3_CMD MMC3_DAT6 MMC3_CLK HDQ DMAREQ3 AUX_DC PWR_CNTRL PROC AF13 AH14 AE13 AH12 AG12 AH9 AG9 AF11 AE11 AE10 AF9 AF10J25 P8 4 GPIO_20 GPIO_21 GPIO_17 GPIO_16 GPIO_15 GPIO_19 GPIO_23 GPIO_14 GPIO_18 GPIO_13 GPIO_22 GPIO_12 GPIO_170 GPIO_57 5 MM1_TXEN_N MM1_TXDAT MM1_TXSE0 MM1_RX MM1_RXRCV MM1_RXDP The following sections provide a brief description of the functions of the pins available.1 MCBSP5 Signals Access to McBSP5 is provided as an option on the connector.8V. Not all of these signals can be used at the same time. 7.2 MMC3 Signals These signals can be used to provide an additional SD/MMC interface on an expansion board.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual P17 Auxiliary Expansion Signals 0 ETK_D6 ETK_D7 ETK_D3 ETK_D2 ETK_D1 ETK_D5 ETK_D9 ETK_D0 ETK_D4 ETK_CTL ETK_D8 ETK_CLK HDQ 1 MCBSP5_DX MCSPI3_CS1 MCSPI3_CLK MCSPI3_CS0 MCBSPI3_SOMI MCBSP5_FSX SERCURE_IND MCSPI3_SIMO MCBSP5_DR DRM_SECURE MCBSP5_CLKX SYS_ALTCLK DMAREQ3 3 VIO_1V8 VMMC2 MMC3_DAT2 HSUSB1_D6 MMC3_DAT7 HSUSB1_D3 MMC3_DAT3 HSUSB_D7 HSUSB1_D2 HSUSB1_D1 MMC3_DAT1 HSUSB1_D5 MMC3_DAT5 HSUSB1_NXT MMC3_DAT4 HSUSB1_D0 MMC3_DAT0 HSUSB1_D4 MMC3_CMD HSUSB1_CLK MMC3_DAT6 HSUSB1_DIT MMC3_CLK HSUSB1_STP GPT11_PWM AUX_ADC PWR_CNTRL GND GND 2 Revision C. Table 27 below shows the pins that the McBSP5 interface appears on. In order to access these signals. Only one signal can be used per pin at one time based on the setting of the pin mux registers in the processor. Table 27. they must be in Mux mode 2.1. the mux mode for each pin must be set to 1. PIN 3 8 11 14 SIGNAL MCBSP5_DX MCBSP5_FSX MCBSP5_DR MCBSP5_CLKX P17 McBSP5 Expansion Signals I/O O O I O DESCRIPTION Transmitted Data Frame Sync Received Data Serial Clock PROC PINS AF13 AH9 AE11 AF10- 7.26.0 Table 26. so if you plan to use the signals as an SD/MMC interface.
Trace data pin. Bidirectional data pin. Bidirectional data pin. Command indicator signal Bidirectional data pin.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual P17 MMC3 Expansion Signals I/O I/O I/O I/O I/O I/O I/O I/O O I/O O PROC AF13 AH14 AE13 AH9 AG9 AF11 AE11 AE10 AF9 AF10- Revision C. Page 113 of 164 . Bidirectional data pin. Trace control signal. For more information on the use of these signals. Trace data pin. 7. Trace data pin. Clock This interface could also be used to communicate to an FPGA or a WLAN device that uses the SDIO style interface. Trace clock. Table 29. Trace data pin. PIN 3 4 5 8 9 10 11 12 13 14 SIGNAL MMC3_DAT2 MMC3_DAT7 MMC3_DAT3 MMC3_DAT1 MMC3_DAT5 MMC3_DAT4 MMC3_DAT0 MMC3_CMD MMC3_DAT6 MMC3_CLK DESCRIPTION Bidirectional data pin.26. Bidirectional data pin. Bidirectional data pin. Bidirectional data pin. Trace data pin. PIN 3 4 5 6 7 8 9 10 11 12 13 14 SIGNAL ETK_D6 ETK_D7 ETK_D3 ETK_D2 ETK_D1 ETK_D5 ETK_D9 ETK_D0 ETK_D4 ETK_CTL ETK_D8 ETK_CLK I/O O O O O O O O O O O O O P17 Auxiliary ETK Signals PROC AF13 AH14 AE13 AH12 AG12 AH9 AG9 AF11 AE11 AE10 AF9 AF10DESCRIPTION Trace data pin.0 Table 28. Trace data pin.1.3 ETK Signals The ETK signals can be used to provide additional debugging information. please refer to the processor Technical reference Manual. Table 29 has the signals for the ETK interface that are provided. Trace data pin. Trace data pin. Trace data pin.
This can be used for things such as the GPTIMERS. It is the same interface that is used to communicate to the UBS PHY on the board.26.0 7. In order for these pins to be used. These protocols use a single wire for communication between the master (HDQ/1-Wire controller) and the slaves (HDQ/1-Wire external compliant devices).26. Table 30. the pin mux must be set to Mode 3.26.5 Alternate Clock The SYS_ALTCLK signal can be used to provide an alternate system clock into the processor. PIN 3 4 5 6 7 8 9 10 11 12 13 14 P17 High Speed USB Expansion Signals I/0 I/O I/O I/O I/O I/O I/O I I/O I/O O I O PROC AF13 AH14 AE13 AH12 AG12 AH9 AG9 AF11 AE11 AE10 AF9 AF10DESCRIPTION Bidirectional Data Bidirectional Data Bidirectional Data Bidirectional Data Bidirectional Data Bidirectional Data Next signal Bidirectional Data Bidirectional Data 60MHZ Clock output Data direction signal Stop signal SIGNAL HSUSB1_D6 HSUSB1_D3 HSUSB_D7 HSUSB1_D2 HSUSB1_D1 HSUSB1_D5 HSUSB1_NXT HSUSB1_D0 HSUSB1_D4 HSUSB1_CLK HSUSB1_DIR HSUSB1_STP 7.6 HDQ 1-Wire The HDQ/1-Wire module implements the hardware protocol of the master functions of the Benchmarq HDQ and the Dallas Semiconductor 1-Wire® protocols. 7.1. Page 114 of 164 . There are voltage level restrictions to this pin. Table 30 gives the signals that are used for this interface.26. USB. so refer to the TPS65950 documentation before using this pin. but a different port.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C.4 HSUSB1 Signals These signals are the other High Speed USB port found on the processor.7 ADC There is one A to D converter pin provided on the Auxiliary Expansion Header. This pin is labeled AUX_ADC and connects to the ADCIN6 pin of the TPS65950 and can be controlled and read by the processor using the I2C1 interface. 7. or as a clock for the NTSC/PAL S-Video output.
9 DMAREQ Pin 16 of the expansion connector can also be configured for a DMAREQ pin. Table 31 shows the GPIO pin options that can be used on each pin of the connector. This is the primary audio bus for the processor.16. PIN 3 4 5 6 7 8 9 10 11 12 13 14 15 16 SIGNAL GPIO_20 GPIO_21 GPIO_17 GPIO_16 GPIO_15 GPIO_19 GPIO_23 GPIO_14 GPIO_18 GPIO_13 GPIO_22 GPIO_12 GPIO_170 GPIO_57 P17 Auxiliary GPIO Signals I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O PROC AF13 AH14 AE13 AH12 AG12 AH9 AG9 AF11 AE11 AE10 AF9 AF10J25 P8 DESCRIPTION General Purpose Input/Output General Purpose Input/Output General Purpose Input/Output General Purpose Input/Output General Purpose Input/Output General Purpose Input/Output General Purpose Input/Output General Purpose Input/Output General Purpose Input/Output General Purpose Input/Output General Purpose Input/Output General Purpose Input/Output General Purpose Input/Output General Purpose Input/Output 7. refer to Section 8. For further information on these signals.1. 7.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C.26.8 GPIO Signals Most of the signals can also be configured as either inputs or outputs from the processor.27 Audio Expansion Header Also new to the –xM is the addition of the Audio Header that provides access to the McBSP2 bus that connects to the TPS65950. Table 31.2 Page 115 of 164 .26. Refer to the processor Technical Reference Manual for more information on how to use this signal.0 7.
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Revision C.1.0
Connector Pinouts and Cables
This section provides a definition of the pinouts and cables to be used with all of the connectors and headers on the BeagleBoard. THERE ARE NO CABLES SUPPLIED WITH THE BEAGLEBOARD.
Power Connector
Figure 52 is a picture of the BeagleBoard power connector with the pins identified. The supply must have a 2.1mm center hot connector with a 5.5mm outside diameter.
Figure 52. Power Connector
The supply must be at least 1A with a maximum of 3A. If the expansion connector is used, more power will be required depending on the load of the devices connected to the expansion connector.
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Figure 53 is a picture of the BeagleBoard USB OTG connector with the pins identified.
Figure 53. USB OTG Connector
The shorting pads, J1, to convert the OTG port to a Host mode are found in Figure 54.
Figure 54. OTG Host Shorting Pads
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Figure 55 is the S-Video connector on the BeagleBoard.
Figure 55. S-Video Connector
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DVI-D Connector Table 32 is the pin numbering of the two ends of the cable as it relates to the signals used in the DVI-D interface itself.1. Table 32. SIGNAL DATA 2DATA 2+ SHIELD DVI-D to HDMI Cable DVI-D PIN# 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 DVI-D PIN# 18 19 20 21 22 23 24 HDMI PIN# 3 1 2 DDS CLOCK DDS DATA DATA 1DATA 1+ SHIELD 15 16 6 4 5 5V GROUND (5V) DATA 0SIGNAL DATA 0+ SHIELD 18 17 9 DVI-D PIN# 7 5 CLOCK+ CLOCK- 10 12 Page 119 of 164 .REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C.0 8. Figure 56.4 DVI-D Figure 56 is the pinout of the DVI-D connector on BeagleBoard.
0 DO NOT PLUG IN THE DVI-D CONNECTOR TO A DISPLAY WITH THE BEAGLEBAORD POWERED ON. It should also be noted that no audio will be provided over this interface.1. the BeagleBoard may not work if the display timing is not accepted by the display. the HDMI to HDMI connector could be used to connect direct to a monitor equipped with a HDMI port. Page 120 of 164 . PLUG IN THE CABLE TO THE DISPLAY AND THEN POWER ON THE BEAGLEBOARD. It some cases. DVI-D Cable A standard HDMI cable may be used as well as long as it is used with an adapter if you are connecting to a monitor via the DVI-D port. Figure 57. DVI-D Cable In some cases. Figure 58. Figure 58 shows this configuration.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C. Figure 57 is one of the cables that can be used to connect to an LCD monitor.
LVDS interfaces. This provides the ability to create adapters for such things as different LCD panels. When Hi.8V with the exception of DVI_PUP signal which is 3. 8.1 Connector Pinout The Table 33 and 34 define the pinout of the LCD connectors. etc. P11 LCD Signals I/O PWR PWR O O O O O O O O O O O O I/O O O Pin# 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 Signal DC_5V DC_5V DVI_DATA1 DVI_DATA0 DVI_DATA3 DVI_DATA2 DVI_DATA5 DVI_DATA4 DVI_DATA12 DVI_DATA10 DVI_DATA23 DVI_DATA14 DVI_DATA19 DVI_DATA22 I2C3_SDA DVI_DATA11 DVI_VSYNC Description DC rail from the Main DC supply DC rail from the Main DC supply LCD Pixel Data bit LCD Pixel Data bit LCD Pixel Data bit LCD Pixel Data bit LCD Pixel Data bit LCD Pixel Data bit LCD Pixel Data bit LCD Pixel Data bit LCD Pixel Data bit LCD Pixel Data bit LCD Pixel Data bit LCD Pixel Data bit I2C3 Data Line LCD Pixel Data bit LCD Vertical Sync Signal Control signal for the DVI controller.0 8.8V DSS signals from the processor. All signal levels are 1. Ground bus Ground bus 18 DVI_PUP O 19 20 GND GND PWR PWR Page 121 of 164 . DVI is enabled.5 LCD This section covers the pair of headers that provide access to the raw 1. Table 33.3V. Can be used to activate circuitry on adapter board if desired.1.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C.5.
LCD Pixel Data bit LCD Pixel Data bit LCD Pixel Data bit LCD Pixel Data bit LCD Pixel Data bit LCD Pixel Data bit LCD Pixel Data bit LCD Pixel Data bit LCD Pixel Data bit No connect LCD Pixel Data bit I2C3 Clock Line LCD Pixel Data bit DVI Clock Data Enable Horizontal Sync Ground bus Ground bus I/O O O O O PWR PWR Figure 59 shows where pins 1 and 2 are located on each connector.3V VIO_1V8 DVI_DATA20 DVI_DATA21 DVI_DATA17 DVI_DATA18 DVI_DATA15 DVI_DATA16 DVI_DATA7 DVI_DATA13 DVI_DATA8 NC DVI_DATA9 I2C3_SCL DVI_DATA6 DVI_CLK+ DVI_DEN DVI_HSYNC GND GND Description 3. P13 LCD Signals I/O PWR PWR O O O O O O O O O Revision C. Figure 59.3V reference rail 1.8V buffer reference rail. LCD Expansion Connector Pins Page 122 of 164 .REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Table 34.1. front and back sides shown.0 Pin# 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Signal 3. The top side pins make for convenient test points if needed.
5.8V IO rail Camera vertical Sync 1.1.0 8. P10 Camera Signals I/O I O I PWR I I I/O I I I I I PWR I PWR I PWR I PWR I PWR I PWR PWR PWR I PWR I PWR I PWR PWR PWR Pin# 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 Signal CAM_D11 CAM_CLKA CAM_D10 GND CAM_D9 I2C_SDA CAM_D8 I2C_SCL CAM_D7 CAM_FLD CAM_D6 CAM_WEN CAM_D5 GND CAM_D4 CAM_2V8 CAM_D3 CAM_2V8 CAM_D2 GND CAM_D1 GND CAM_D0 DC_5V DC_5V DC_5V CAM_PCLK GND CAM_HS CAM_1V8 CAM_VS CAM_1V8 GND GND Description Camera Data 11 Camera main clock Camera Data 10 Ground Camera Data 9 Camera control data Camera Data 8 Camera control clock Camera Data 7 Camera Reset Camera Data 6 Camera Output enable Camera Data 5 Ground Camera Data 4 Camera 2.2 Camera Table 35 is the pinout of the camera connector on the board.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C.8V core voltage Camera Data 3 Camera 2. Table 35.8V core voltage Camera Data 2 Ground Camera Data 1 Ground Camera Data 0 5V supply 5V supply 5V supply Camera Pixel Clock Ground Camera Horizontal Sync 1. Figure 60 shows the pin number and location of the camera connector.8V IO rail Ground Ground Page 123 of 164 .
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Figure 60. Camera Connector
Figure 61 is the front of the camera module. The camera should face to the edge of the board (Left) when installed. The camera module is not supplied with the BeagleBoard.
Figure 61. Camera Module
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Audio McBSP2 Port
New to the –xM version is the addition of a four pin connector that provides access to the McBSP2 audio serial interface. While other McBSP ports can be used for audio, McBSP2 is the most desirable due its large buffers. Table 36 is the pin out of the connector.
Table 36. P10 McBSP2 Signals I/O
1 2 3 4
McBSP2_DX McBSP2_FSX McBSP2_DR McBSP2_CLKX
Transmit Out Frame Sync Receive In Clock
Figure 62 is the pin number location of P10.
Figure 62. McBSP Audio Connector
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Auxiliary Access Header
Table 37 gives the signal names of the pins on the Auxiliary Access Connector.
Table 37. P17 Auxiliary Access Signals I/O
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
1.8V IO Rail 1.85V to 3.15V Rail. Configurable via SW. MMC interface data pin. MMC interface data pin. MMC interface data pin. General purpose I/O pin General purpose I/O pin MMC interface data pin. MMC interface data pin. MMC interface data pin. MMC interface data pin. MMC CMD signal pin MMC interface data pin. MMC clock pin I-wire interface pin DMA request input pin ADC on TPS65950 Control pin for on/off button to the TPS65950
Figure 63 shows the location of P17.
Figure 63. Auxiliary Access Connector
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190 4.56 0.296 7. It is strongly recommended that the CAD data be used in order to determine their location exact.83 Page 127 of 164 .118 2. Table 38 provides the values for each lettered dimension.5 LCD and Expansion Measurements Figure 64 provides some of the dimensions that can assist in the location of the LCD headers.0 8.99 0.5.21 27. Connector Dimensions Dimension A B C D Inches Millimeters 1. Top Mount LCD Adapter Table 38.52 0.1. Figure 64.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C.
1.6 Mounting Scenarios This section provides a few possible mounting scenarios for the LCD connectors. Figure 65 shows the board being mounted under the BeagleBoard.0 8. Buffer Logic LCD Connector BeagleBoard Adapter Figure 65.8V. Bottom Mount LCD Adapter Page 128 of 164 . It will require that they be buffered in order to drive other voltage levels. It should be noted that the voltage level of these signals are 1.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C.5.
Audio In Connector Page 129 of 164 .1. Audio In Plug Figure 67 is the actual connector used on the BeagleBoard.0 8.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C.6 Audio Connections Figure 66 is the audio input jack required to connect to the BeagleBoard. Figure 66. Figure 67.
1. Audio Out Connector Page 130 of 164 .REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C.0 8.7 Audio Out Figure 68 is the audio out jack required to connect to the BeagleBoard. Figure 68. Audio Out Plug Figure 69 is the actual connector used on the BeagleBoard. Figure 69.
8. Figure 70. JTAG Signals Pin 1 3 7 9 11 2 13 14 5 4. JTAG Connector Pinout Table 39 gives a definition of each of the signals on the JTAG header. The JTAG emulator must support 1.1. Page 131 of 164 .8V only.14 Signal JTAG_TMS JTAG_TDI JTAG_TDO JTAG_RTCK JTAG_TCK JTAG_nTRST JTAG_EMU0 JTAG_EMU1 VIO GND Description Test mode select Test data input Test Data Output ARM Clock Emulation Test Clock Test reset Test emulation 0 Test emulation 1 Voltage pin Ground I/O I/O I O O I I I/O I/O PWR PWR All of the signals are 1.8 JTAG Figure 70 is the JTAG connector pin out showing the pin numbering.10.12.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C.8V signals for use on the BeagleBoard. Table 39.0 8.
Figure 71 shows an example of a 14 pin to 20 pin adapter.0 If a 20 pin connector is provided on the JTAG emulator. Figure 71. then a 20 pin to 14 pin adapter must be used. JTAG 14 to 20 Pin Adapter Figure 72 shows how the JTAG cable is to be routed when connected to the BeagleBoard. Figure 72.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C. You may also use emulators that are either equipped with a 14 pin connector or are universal in nature. JTAG Cable Placement Page 132 of 164 .1.
9 8. This is a Lithium Rechargeable Battery with a 1mAH capacity. It is also possible that the user may choose to install a higher capacity Lithium battery. Figure 73 is a picture of the battery.9. THIS DAMAGE IS NOT COVERED UNDER THE WARRANTY. INSTALLATION OF THE BATTERY BY THE USER IS AT THEIR OWN RISK. Figure 73. Page 133 of 164 .9.0 8.2 Battery Installation THE FOLLOWING STRUCTIONS ASSUME THE USER HAS PREVIOUS EXPERIENCE WITH BATTERIES.1. FAILURE TO FOLLOW THE INSTRUCTIONS CAN RESULT IN DAMAGE TO THE BOARD. BATTERY INSTALLATION IS THE SOLE RESPONSABILTY OF THE USER. Optional Battery 8.1 Battery Installation Battery The board was designed to use the MS412FE-FL26E battery from Seiko Instruments.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C.
1. Page 134 of 164 . Using Figure 73. locate the positive (+) lead of the battery. 1) 2) 3) 4) Remove all cables from the board. Remove R65 from the board as shown on Figure 75. Insert the (+) lead into the hole that is marked (+) on Figure 74.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C.0 Figure 74. Optional Battery Location Figure 75. Resistor R65 Following are the steps required to install the battery.
This section covers these accessories and add-ons and provides information on where they may be obtained. Please check BeagleBoard.0 9. but is provided as a convenience only to the users of the BeagleBoard-xM board. Inclusion of any product in this section is not an endorsement of the product by Beagleboard. It is up to the user to find the appropriate drivers for each of these products. o User can choose the brand of peripherals based on driver availability and ability to acquire the particular peripheral o User can add these peripherals at a lower cost than if they were integrated into the BeagleBoard. Covered in this section are the following accessories: o o o o o o o o DC Power Supplies Serial Ribbon cable USB Hubs USB Thumb Drives DVI-D Cables DVI-D Monitors SD/MMC Cards USB to Ethernet Page 135 of 164 .org for an up to date listing of these peripherals. The concept behind BeagleBoard is that different features and functions can be added to BeagleBoard by bringing your own peripherals.1. All pricing information provided is subject to change and in most cases is likely to be lower depending on the products purchased and from where they are purchased. Obviously things can change very quickly as it relates to devices that may be available.0 BeagleBoard Accessories Throughout this manual various items are mentioned as not being provided with the standard BeagleBoard package or as options to extend the features of the BeagleBoard. This has several key advantages: o User can choose which peripherals to add.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C.org. Inclusion of any products in this section does not guarantee that they will operate with all SW releases. Information provided here is intended to expose the capabilities of what can be done with the BeagleBoard and how it can be expanded.
5mm Center hot Unit V A It is recommended that a supply higher than 1.5 (minimum) 2.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C. DC Power Supply Specifications Specification Voltage Current Connector Requirement 5.5A be used if higher current peripherals are expected to be used or if expansion boards are added. Table 40.1mm x 5. DC Power Supply Page 136 of 164 . Table 41 lists some power supplies that will work with the BeagleBoard. Table 40 provides the specifications for the BeagleBoard DC supply.0 1.1.1 DC Power Supply Tabletop or wall plug supplies can be used to power BeagleBoard. The onboard USB hub and Ethernet do consume additional power and if you plan to load the USB Host ports.. Supplies that provide additional current than what is specified can be used if additional current is needed for add on accessories.0 o USB to WiFi o USB Bluetooth o Expansion Cards NO CABLES OR POWER SUPPLIES ARE PROVIDED WITH THE BEAGLEBOARD. DC Power Supplies Part # EPS050100-P6P DPS050200UPS-P5P-SZ Manufacturer CUI CUI Supplier Digi-Key Digi-Key Price $7 $16 Figure 76 is a picture of the type of power supply that will be used on the BeagleBoard. more power will be required. The amount specified is equal to that supplied by a USB port. Table 41. 9. Figure 76.
org for an up to date listing of the DVI-D monitors as well as information on the availability of drivers.3 DVI-D Monitors There are many monitors that can be used with the BeagleBoard.2 DVI Cables In order to connect the DVI-D interface to a LCD monitor. Whether or not the Beagle will support those monitors is dependent on the timings that are used on the Beagle and those that are accepted by the monitor. Page 137 of 164 . HDMI to DVI-D Cable 9. Table 42.0 9. Table 42 shows a short list of the monitors that have been tested to date on the BeagleBoard at the 1024x768 resolution. This may require a change in the software running on the Beagle. Figure 77 is a picture of a HDMI to DVI-D cable.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C. a HDMI to DVI-D cable is required. The audio and encryption features of HDMI are not supported by the Beagle. With the integrated EDID feature. A standard HDMI cable may be used to connect to the HDMI input of monitors. timing data is collected from the monitor to enable the SW to adjust its timings.1. DVI-D Monitors Tested Manufacturer Dell Insignia Dell LG Part Number 2407WFPb NS-LCD15 1708FP FLATRON W2243T Status Tested Tested Tested Tested DO NOT PLUG IN THE DVI-D CONNECTOR TO A DISPLAY WITH THE BEAGLEBAORD POWERED ON. Please check on BeagleBoard. PLUG IN THE CABLE TO THE DISPLAY AND THEN POWER ON THE BEAGLEBOARD. The digital portion of the DVI-D interface is compatible with HDMI and is electrically the same. Figure 77.
but is provided as examples only. This will require a special cable to convert the miniAB connector to a Type A or a hub can also be used. Table 43. Please check BeagleBoard.4 microSD Cards Table 43 is a list of SD/MMC cards that have been tested on BeagleBoard. Check BeagleBoard.0 The analog portion of DVI which provides RGB analog type signals is not supported by the Beagle. You will need an active DVI-D to VGA adapter. Buying a DVI to VGA adapter connector will not work on a VGA display. Inclusion of these items in the table does not guarantee that they will work. 9.org for an up to date listing of the USB to WiFi devices as well as information on the availability of drivers. These devices can easily add WiFi connectivity to BeagleBoard by using the USB OTG port in the host mode. Page 138 of 164 . Please check BeagleBoard. USB to WiFi Table 44 provides a list of USB to WiFi adapters that could be used with the BeagleBoard.5 USB to WiFi There are several USB to WiFi adapters on the market and Figure 78 shows a few of these devices. These are provided as examples only.1. SD/MMC Cards Tested Manufacturer Patriot Type 4GB Part Number Status Tested 9. Figure 78.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C.org for an up to date listing of the SD/MMC cards that have been tested as well as information on the availability of drivers if required.org for information on devices that have drivers available for them.
Page 139 of 164 .1. This will require a special cable to convert the miniAB connector to a Type A or a hub can also be used. Check BeagleBoard. These are provided as examples only. Inclusion of these items in the table does not guarantee that they will work. Before purchasing a particular device. please verify the availability of drivers for that device. These devices can easily add Bluetooth connectivity to BeagleBoard by using the USB OTG port in the host mode. USB to WiFi Adapters Product 4410-00-00AF HWUG1 TEW-429Uf Manufacturer Zoom Hawkins Trendnet Status Not Tested Not Tested Not Tested It should be noted that the availability of Linux drivers for various WiFi devices is limited. Please check BeagleBoard.org for an up to date listing of the USB to Bluetooth devices as well as information on the availability of drivers.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C. 9.org for information on devices that have drivers available for them and their test status. USB to Bluetooth Table 45 provides a list of USB to Bluetooth adapters that could be used with the BeagleBoard.6 USB to Bluetooth There are several USB to Bluetooth adapters on the market and Figure 79 shows a few of these devices.0 Table 44. but is provided as examples only. Figure 79.
1.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual USB to Bluetooth Adapters Revision C. Product TBW-105UB ABT-200 F8T012-1 Manufacturer Trendnet Airlink Belkin Status Not Tested Not Tested Not Tested Page 140 of 164 .0 Table 45.
Figure 80.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C. Figure 80 is the dimensions of the BeagleBoard.1. Despite the change in the overall dimensions of the board. the mounting holes and the replacement of the main expansion and LCD headers are the same as is found on the BeagleBoard board. BeagleBoard Dimension Drawing Page 141 of 164 .0 Mechanical Information 10.0 10.1 BeagleBoard Dimensions This section provides information on the mechanical aspect of the BeagleBoard.
2 BeagleBoard Expansion Card Design Information This section provides information on what is required from a mechanical and electrical aspect to create expansion cards for the BeagleBoard that are designed to connect to the Expansion header on the BeagleBoard. Users are free to create their own cards for private or commercial use.1 Mounting Method The standard method to provide a daughtercard for the BeagleBoard is for it to be mounted UNDER the Beagle Board as described in Figure 81.1.2.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C. The –xM has additional connectors on the back of the board. 10.0 10. Figure 82 shows their location. Page 142 of 164 . but in order to be supported by the Software they must conform to these standards if such support is desired. Figure 81. BeagleBoard Bottom Stacked Daughter Card All BeagleBoard-xM produced will have the connectors pre mounted onto the bottom of the BeagleBoard as described above.
REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C.2. This is to allow for the identification of the card by the Software in order to set the pin muxing on the expansion connector to be compatible with the expansion card. BeagleBoard-xM Expansion Headers 10.1.2 Expansion EEPROM All expansion cards designed for use with the BeagleBoard are required to have a EEPROM located on the board. Page 143 of 164 .0 Figure 82. The schematic for the EEPROM is in Figure 83 below.
0402 1 2 R20 VIO_1V8 U8 A0 A1 A2 1 2 3 4 A0 VCC A1 WP A2 SCL VSS SDA AT24C01 C28 8 7 6 5 BB_WP BB_I2C_SCL BB_I2C_SDA TP7 TP 0. The EEPROM that is designated is the AT24C01 or ATC24C01B.7K.5%. It is suggested that a testpoint be used to allow for the WP to be disabled during test to allow the required data to be written to the EEPROM.0402 2 R21 1 Page 144 of 164 . The EEPROM is to be connected to I2C2 as found on the main expansion connector.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual VIO_1V8 Revision C.1.0402 Figure 83. 4. BeagleBoard Expansion Board EEPROM Schematic The EEPROM must be write protected.0 4.5%. The AT24C01 is designated as "Not Recommended for New Design" but can still be used. o o o o o o TSSOP 8 PDIP 8 UDFN 8 SOIC 8 SOT23 5 dBGA2 8 The contents of the EEPROM are not specified in this document. all of which can be used.5%.CER. The AT24C01B is the replacement part and is available in several different packages.0402 1 2 R19 4.7K.1uf .7K.
Page 145 of 164 .1. Others may be at different voltage levels depending on the same factor. Figure 84.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C.0 11. BeagleBoard Voltage Access Points Some of these voltages may not be present depending on the state of the TWL4030 as set by the processor. Figure 84 shows the top side test points.0 Board Verification Test Points There are several test points that may be useful if it becomes necessary to troubleshoot the BeagleBoard-xM board.
8 1. Table 46.32 3.81 5.3V VMMC1 (3V) VMMC1(1.1 1.78 1.2 3.8 1.0V at power up.3 3.78 1. Voltages Voltage VIO_1V8 VDD_SIM VBUS_5V0 VOCORE_1V3 VBAT VDAC_1V8 VDD_PLL1 VDD_PLL2 VDD2 3.9 1.15 4.81 1. Can be set via SW.8 1.25 3.0 1.78 1.81 1.2 4.81 1.1.2 1.8 1. Voltage levels may vary.81 1. Can be set to via SW.78 Nom Max 1. May be lower or higher.8V) Min 1.15 3.0 1. 3.78 1.8 5.1 1.0 Table 46 provides the ranges of the voltages and the definition of the conditions as applicable.81 Conditions From the host PC.2 1.28 2.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C.3 1.78 4.8 1. Page 146 of 164 .4 4.9 1.
BeagleBoard Signal Access Points Page 147 of 164 .1.1.1 Signal Access Points Figure 85 shows the access points for various signals on BeagleBoard.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C.0 11. Figure 85.
Table 47. Troubleshooting Symptoms Possible Problem JTAG does not connect. Cheap USB Cable. Make sure the card is formatted correctly and that the MLO file is the first file written to the SD card. Incorrect serial cable configuration. Verify straight thru cable configuration. processor is booting. Action If off and running over USB. If running on a DC supply make sure that voltage is being supplied. JTAG interface needs to be reset. Page 148 of 164 . OTG cables are typically not designed for higher current. Measure the voltage at the card to determine the voltage drop across the cable. Reset the BeagleBoard. and no activity on the RS232 monitor. Remove the USB cable and re insert.0 11.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C. USB Host Connection Issues via OTG.2 Troubleshooting Guide Table 47 provides a list of possible failure modes and conditions and suggestions on how to diagnose them and ultimate determine whether the HW is operational or not.1. Verify that the Power LED is on. the USB power is not guaranteed to work. UBoot does not start. The expect 100mA max. Issue could be the SD/MMC card. If it the level is below 4.35V. Make sure the SD/MMC card is installed all they way into the connector. If a 60 is displayed over the serial cable. the PC may have shut down the voltage due to excessive current as related to what it is capable of providing.
REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C.0 Known Issues This section provides information on any known issues with the BeagleBoard HW and the overall status.1. Known Issues Affected Revision A A Issue DVI Powerdown USB Hub reset Description DVI power down signal is not operational Reset signal to hub is not operational Workaround None Hub can be powered off and on to create a reset scenario Final Fix B No Plan Page 149 of 164 . Table 48 provides a list of the know issues on the BeagleBoard.0 12. Table 48.
0 PCB Component Locations Figures 86 and Figure 87 contain the bottom and top side component locations of the BeagleBoard.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C. Figure 86. BeagleBoard Top Side Components Page 150 of 164 .1.0 13.
BeagleBoard Bottom Side Components Page 151 of 164 .1.0 Figure 87.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C.
REPAIR OR CORRECTION. SHOULD THE DESIGN MATERIALS PROVE DEFECTIVE. Page 152 of 164 . these design materials may be totally unsuitable for any purposes. Only "community" support is allowed via resources at BeagleBoard. BUT NOT LIMITED TO. EITHER EXPRESSED OR IMPLIED. THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. YOU ASSUME THE COST OF ALL NECESSARY SERVICING. INCLUDING. but for the latest documentation be sure and check BeagleBoard. This manual will be periodically updated.org at the following link.0 Schematics The following pages contain the PDF schematics for the BeagleBoard.org/discuss.0 14. http://beagleboard.org/hardware/design These design materials are *NOT SUPPORTED* and DO NOT constitute a reference design.org for the latest schematics. OrCAD source files are provided for BeagleBoard on BeagleBoard. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE DESIGN MATERIALS "AS IS" WITHOUT WARRANTY OF ANY KIND. THERE IS NO WARRANTY FOR THE DESIGN MATERIALS.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C.1. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE DESIGN MATERIALS IS WITH YOU. We mean it. TO THE EXTENT PERMITTED BY APPLICABLE LAW.
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EITHER EXPRESSED OR IMPLIED. these design materials may be totally unsuitable for any purposes.org/hardware/design These design materials are *NOT SUPPORTED* and DO NOT constitute a reference design. Page 163 of 164 . SHOULD THE DESIGN MATERIALS PROVE DEFECTIVE. THERE IS NO WARRANTY FOR THE DESIGN MATERIALS.0 15.org at the following location: http://beagleboard. REPAIR OR CORRECTION.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C.0 Bills of Material The Bill of Material for the Beagle Board is provided at BeagleBoard. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE DESIGN MATERIALS "AS IS" WITHOUT WARRANTY OF ANY KIND. Only "community" support is allowed via resources at BeagleBoard.1. BUT NOT LIMITED TO. TO THE EXTENT PERMITTED BY APPLICABLE LAW. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE DESIGN MATERIALS IS WITH YOU. INCLUDING.org/discuss. THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. YOU ASSUME THE COST OF ALL NECESSARY SERVICING. We mean it.
EITHER EXPRESSED OR IMPLIED. BUT NOT LIMITED TO. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE DESIGN MATERIALS IS WITH YOU.1.0 16. INCLUDING. THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. these design materials may be totally unsuitable for any purposes.org/hardware/design These design materials are *NOT SUPPORTED* and DO NOT constitute a reference design. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE DESIGN MATERIALS "AS IS" WITHOUT WARRANTY OF ANY KIND. http://beagleboard. REPAIR OR CORRECTION.org at the following address.REF: BB_SRM_xM BeagleBoard-xM System Reference Manual Revision C. TO THE EXTENT PERMITTED BY APPLICABLE LAW. Gerber files and Allegro source files are available on BeagleBoard. THERE IS NO WARRANTY FOR THE DESIGN MATERIALS. YOU ASSUME THE COST OF ALL NECESSARY SERVICING.0 PCB Information The following pages contain the PDF PCB layers for the BeagleBoard.org/discuss. We mean it. Only "community" support is allowed via resources at BeagleBoard. Page 164 of 164 . SHOULD THE DESIGN MATERIALS PROVE DEFECTIVE.
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