Dma Source Address Counter (Dmacsac) And Destination Address; Counter (Dmacdac); Dma Destination Element Index Register (Dmacdei) Field Descriptions; Dma Destination Frame Index Register (Dmacdfi) Field Descriptions - Texas Instruments OMAP5910 Reference Manual

DSP DMA
Table 75. DMA Destination Element Index Register (DMACDEI) Field Descriptions
Bits Field
15−0 ELEMENTNDX
Table 76. DMA Destination Frame Index Register (DMACDFI) Field Descriptions
Bits Field
15−0 FRAMENDX
7.3.12

DMA Source Address Counter (DMACSAC) and Destination Address

Counter (DMACDAC)

Figure 91. DMA Source Address Counter (DMACSAC) and Destination Address Counter
(DMACDAC)
DMACSAC
15
DMACDAC
15
Note: R = Read; W = Write; −n = Value after reset; −x = Value after DSP reset is not defined.
Table 77. DMA Source Address Counter (DMACSAC) Field Descriptions
Bits Field
15−0 SAC
Table 78. DMA Destination Address Counter (DMACDAC) Field Descriptions
Bits Field
15−0 DAC
186 DSP Subsystem
Value Description
−32768 When DINDXMD = 1, DMACDEI contains the destination element
to 32767 index (in bytes).
Value Description
−32768 When DINDXMD = 1, DMACDFI contains the destination frame index
to 32767 (in bytes).
The progress of each DMA channel can be monitored by reading the source
and destination address counters (DMACSAC and DMACDAC). DMACSAC
shows the low 16 bits of the current source address. DMACDAC shows the low
16 bits of the current destination address. The address counters are
summarized by Figure 91, Table 77, and Table 78. DMACSAC and
DMACDAC are uninitialized after a DSP subsystem reset.
Value Description
0000h− Low 16 bits of current source address.
FFFFh
Value Description
0000h− Low 16 bits of current destination address.
FFFFh
SAC
RW-x
DAC
RW-x
0
0
SPRU890A