SPRUJ17H March 2022 – October 2024 AM2631 , AM2631-Q1 , AM2632 , AM2632-Q1 , AM2634 , AM2634-Q1
Each of the 64 DMA channels and eight QDMA channels are programmed independently to map to a specific queue, using the DMA queue number register EDMA_TPCC_DMAQNUMN_k and the QDMA queue number register EDMA_TPCC_QDMAQNUM. The mapping of DMA/QDMA channels is critical to achieving the desired performance level for the EDMA and most importantly, in meeting real-time deadlines. Refer to System-level Performance Considerations.
If an event is ready to be queued and both the event queue and the EDMA transfer controller that is associated to the event queue are empty, then the event bypasses the event queue, and moves the PaRAM processing logic, and eventually to the transfer request submission logic for submission to the EDMA_TPTC. In this case, the event is not logged in the event queue status registers.