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
DREQ1
DACK1
O
I
Output showing that DREQ0 has been
accepted
1
DMA transfer request
DMA transfer request input from
external device to channel 1
DMA transfer request
acceptance
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
Rev. 5.00, 09/03, page 330 of 760
RENESAS [ RENESAS TECHNOLOGY CORP ]
