Datasheet

216
11.1.3 Pin Configuration
Table 11.1 shows the DMAC pins.
Table 11.1 DMAC Pin Configuration
Channel Name Symbol I/O Function
0 DMA transfer request DREQ0 I DMA transfer request input from
external device to channel 0
DMA transfer request
acknowledge
DACK0 O DMA transfer strobe output from
channel 0 to external device
DREQ0 acceptance
confirmation
DRAK0 O Sampling receive acknowledge output
for DMA transfer request input from
external source
1 DMA transfer request DREQ1 I DMA transfer request input from
external device to channel 1
DMA transfer request
acknowledge
DACK1 O DMA transfer strobe output from
channel 1 to external device
DREQ1 acceptance
confirmation
DRAK1 O Sampling receive acknowledge output
for DMA transfer request input from
external source