Texas Instruments OMAP5912 Reference Manual page 784

DSP DMA
Table 112. Channel Control Registers (DMA_CCR0...DMA_CCR5) (Continued)
Bit Name
13:12 SRC_AMODE
160 Direct Memory Access (DMA) Support
Function
Source addressing mode
This field determines the addressing mode used by
the DMA controller when it reads from the source
port of the channel.
00: Constant address. The same address is used
for each element transfer.
01: Automatic post-incremented. After each
element transfer, the address is incremented
according to the selected data type:
8-bit data type address = address+1
-
16-bit data type address = address+2
-
32-bit data type address = address+4
-
10: Single index (element index). After each
element transfer, the address is incremented by
the programmed element index register contents.
Address = address + element index (DMA_CSEI)
11: Double index (element index and frame index).
After each element transfer, the address is
incremented by the appropriate index amount:
If there are more elements to transfer in the current
frame, then:
address = address + element index (DMA_CSEI)
If the last element in the frame has been
transferred, then:
address = address + frame index (DMA_CSFI)
Type Reset
00 RW
SPRU755B