Texas Instruments OMAP5910 Reference Manual page 166

DSP DMA
Table 63. DMA Channel Control Register (DMACCR) Field Descriptions (Continued)
Bits Field
13−12 SRCAMODE
166 DSP Subsystem
Value Description
Source addressing mode bits. SRCAMODE determines the
addressing mode used by the DMA controller when it reads from the
source port of the channel. At the end of a transfer, but before any
incrementing, the source address is the address of the last byte that
was read from the source.
00b Constant address. The same address is used for each element
transfer.
01b Automatic post increment. After each element transfer, the address is
incremented according to the selected data type:
If data type is 8-bit
Address = Address + 1
If data type is 16-bit
Address = Address + 2
If data type is 32-bit
Address = Address + 4
10b Single index. After each element transfer, the address is incremented
by the programmed element index amount:
Address = Address + element index
See section 7.3.11 for more details.
11b Double index (sort). After each element transfer, the address is
incremented by the appropriate index amount:
If there are more elements to transfer in the current frame:
Address = Address + element index
If the last element in the frame has been transferred:
Address = Address + frame index
See section 7.3.11 for more details.
SPRU890A