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Adaptive Pipeline Depth for Asynchronous Systems Using Collapsible Latch Controllers

A new class of latch controllers for asynchronous pipelines is presented. In addition to the standard operating mode, they can be configured in a collapsed mode, where the pipeline latches they control are kept transparent effectively joining the neighbouring pipeline stages into one. The depth of the resulting pipeline is dynamically adaptable, which can be used for power management of asynchronous pipelined systems.