SPRZ457H January 2021 – December 2023 AM2431 , AM2432 , AM2434 , AM6411 , AM6412 , AM6421 , AM6422 , AM6441 , AM6442
BCDMA and PKTDMA: Descriptors and TRs required to be returned unfragmented
The BCDMA and PKTDMA require that the descriptors and TRs are placed in a memory subsystem that returns the descriptor or TR without any fragmenting of the descriptors. However, there are some memories that contain a fragmentation bridge, which makes them not available for holding the descriptors and TRs.
For this device, the R5 TCM memory and PCIe cannot hold descriptors or TRs for PKTDMA or BCDMA
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