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Rev. 5.00, 09/03, page 330 of 760
11.1.3 Pin Configuration
Table 11.1 shows the DMAC pins.
Table 11.1 DMAC Pins
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
acceptance
DACK0 O Strobe output to an external I/O upon
DMA transfer request from external
device to channel 0
DMA request
acknowledge
DRAK0 O Output showing that DREQ0 has been
accepted
1 DMA transfer request DREQ1 I DMA transfer request input from
external device to channel 1
DMA transfer request
acceptance
DACK1 O Strobe output to an external I/O upon
DMA transfer request from external
device to channel 1
DMA request
acknowledge
DRAK1 O Output showing that DREQ1 has been
accepted