SPRUIM2H May 2020 – October 2023 AM2431 , AM2432 , AM2434 , AM6411 , AM6412 , AM6421 , AM6422 , AM6441 , AM6442
After reset, all threads on PSI-L are uninitialized and unpaired. The host will pair each destination PDMA channel with (typically) a corresponding source channel in the paired-DMA. The PDMA thread is configured to point to the paired-DMA thread and the paired DMA thread is configured to point to the PDMA thread. Once paired, the source channels in the paired-DMA will send all their data to the destination channel in the PDMA and the destination channel in the PDMA will never see any data other than data from the source channel in the paired-DMA.
The following PSI-L registers are related to destination thread pairing:
Refer to their descriptions for further details.