Texas Instruments TMS320C3x - Manual (Page 436)

DMA Controller
12-57 Peripherals
12.3.3.2 Destination-Address and Source-Address Registers
The DMA destination-address and source-address registers are 24-bit registers
whose contents specify destination and source addresses. As specified by
control bits DECSRC, INCSRC, DECDST, and INCDST of the DMA global-
control register, these registers are incremented, decremented, or remain
unchanged at the end of the corresponding memory access; that is, the source
register for a read and the destination register for a write (see Figure 12–39).
On system reset, 0 is written to these registers.
Figure 12–39. DMA Controller Address Generation
БББББББББББ
БББББББББББ
БББББББББББ
БББББББББББ
БББББ
БББББ
БББББ
БББББББББББББББ
БББББББББББББББ
DMA destination-address register
БББББББББББ
БББББББББББ
БББББББББББ
БББББББББББ
БББББ
БББББ
БББББ
БББББББББББББББ
БББББББББББББББ
DMA source-address register
DMA
address
bus
DMA
address
bus
INCSRC
DECSRC
0 1 –1
0 1 –1
INCDST
DECDST
DMA destination-address
generator
DMA source-address
generator