It also adds new interrupt lines connected to a second 8259 PIC (connected to one of the lines of the first) and 4 × 16-bit DMA channels, as well as control lines to select 8- or 16-bit transfers.
See lisab samuti uusi katkestusliine, mis ühendati teise 8259 PIC-iga (ühendatud ühega esimese ridadest), ja neli 16-bitist DMA kanalit ning ka kontrollliinid, et valida kas 8- või 16-bitised ülekanded.