CRITICALITY

Low

DESCRIPTION

If EDMA is configured for a constant addressing mode (also referred to as STREAM or FIFO mode) transfer to the VCP data space, the accesses fail.

WORKAROUND

Software must configure the EDMA to perform Incrementing transfers to VCP instead of constant addressing mode. A constant addressing mode transfer can be emulated by setting the EDMA PaRAM as follows:

• Incrementing mode (via SAM or DAM = 0),
• ACNT = 8 (to match VCP bus width),
• BCNT = transfer_byte_count/8,
• BIDX = 0 (via SBIDX or DBIDX),
• ABSync trigger mode (via SYNCDIM = 1).

REVISIONS IMPACTED

SR 2.0, 1.1, 1.0

TDA2x: 2.0, 1.1, 1.0

DRA75x, DRA74x: 2.0, 1.1, 1.0