SPRUI30H November 2015 – May 2024 DRA745 , DRA746 , DRA750 , DRA756
The EDMA controller does not use element-size and element-indexing. Instead, all transfers are defined in terms of all three dimensions: EDMA_TPCC_ABCNT_n[15:0] ACNT, EDMA_TPCC_ABCNT_n[31:16] BCNT, and EDMA_TPCC_CCNT_n[15:0] CCNT. An element-indexed transfer is logically achieved by programming EDMA_TPCC_ABCNT_n[15:0] ACNT to the size of the element and EDMA_TPCC_ABCNT_n[31:16] BCNT to the number of elements that need to be transferred. For example: If there are 16-bit audio data and 256 audio samples that must be transferred to a serial port, therefore the EDMA_TPCC_ABCNT_n[15:0] ACNT = 2 (2 bytes) and EDMA_TPCC_ABCNT_n[31:16] BCNT = 256.