SH7014 Datasheet, PDF (183/754 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer

9. Direct Memory Access Controller (DMAC)
9.1.3 Pin Configuration
Table 9.1 shows the DMAC pins.
Table 9.1 DMAC Pin Configuration
Channel Name
Symbol I/O
0
DMA transfer request DREQ0 I
DMA transfer request DACK0 O
acknowledge
DREQ0 acceptance
confirmation
DRAK0 O
1
DMA transfer request DREQ1 I
DMA transfer request DACK1 O
acknowledge
DREQ1 acceptance
confirmation
DRAK1 O
Function
DMA transfer request input from
external device to channel 0
DMA transfer strobe output from
channel 0 to external device
Sampling receive acknowledge output
for DMA transfer request input from
external source
DMA transfer request input from
external device to channel 1
DMA transfer strobe output from
channel 1 to external device
Sampling receive acknowledge output
for DMA transfer request input from
external source
Rev.5.00 Sep. 27, 2007 Page 149 of 716
REJ09B0398-0500