Dma Element Number Register (Dmacen) And Frame Number; Dma Element Number Register (Dmacen) Field Descriptions; Frame Number Register (Dmacfn) Field Descriptions; Dma Element Index Registers (Dmacsei, Dmacdei) And Frame Index Registers (Dmacsfi, Dmacdfi) - Texas Instruments OMAP5910 Reference Manual

DSP DMA
Figure 89. DMA Element Number Register (DMACEN) and Frame Number Register
(DMACFN)
DMACEN
15
DMACFN
15
Note: R = Read; W = Write; −n = Value after reset; −x = Value after DSP reset is not defined.
Table 71. DMA Element Number Register (DMACEN) Field Descriptions
Bits Field
15−0 ELEMENTNUM
Table 72. Frame Number Register (DMACFN) Field Descriptions
Bits Field
15−0 FRAMENUM
7.3.11 DMA Element Index Registers (DMACSEI, DMACDEI) and Frame Index
Registers (DMACSFI, DMACDFI)
182 DSP Subsystem
ELEMENTNUM
FRAMENUM
Value Description
0000h Reserved (do not use).
0001h− Number of elements per frame (1−65535).
FFFFh
Value Description
0000h Reserved (do not use).
0001h− Number of frames per block (1−65535).
FFFFh
The single- or double-index addressing mode can be selected separately for
the source and destination ports by using the SRCAMODE bits and the
DSTAMODE bits, respectively, of DMACCR (see section 7.3.5). To support the
index addressing modes, there are four index registers: two source index
registers (DMACSEI and DMACSFI) and two destination index registers
(DMACDEI and DMACDFI). The way these registers are used depends on the
destination index mode chosen with the DINDXMD bit of DMAGSCR.
RW-x
RW-x
0
0
SPRU890A