SPRUI30H November 2015 – May 2024 DRA745 , DRA746 , DRA750 , DRA756
The EDMA parameters consist of eight words as shown in Figure 30-18. All EDMA transfers, in the context of the VCPs, must contain an even number of words, and have source and destination addresses double-word aligned.
All EDMA transfers must be double-word aligned and the transfer size for the VCP EDMA transfers must be a multiple of 8. Single-word transfers that are not double-word aligned cause errors in the TCP2/VCP1/VCP2 memory.
Transfers to the VCP FIFOs must be configured to NOT use the EDMA FIFO/Const mode. Instead, the transfers should be set with:
For more information about EDMA, refer to Section 16.2 Enchanced DMA controller.
31 | 0 |
EDMA Channel Options Parameter (OPT) | |
EDMA channel Source Address (SRC) | |
Number of arrays of length ACNT (BCNT) | Number of bytes in array (ACNT) |
EDMA Channel Destination Address (DST) | |
Destination 2nd Dimension Index (DBIDX) | Source 2nd Dimension Index (SBIDX) |
BCNTRLD | LINK |
Destination 3rd Dimension Index (DCIDX) | Source 3rd Dimension Index (SCIDX) |
Reserved | Number of frames in block (CCNT) |