SH7144_08 Datasheet, PDF (213/930 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer SuperHTM RISC engine Family/SH7144 Series

10. Direct Memory Access Controller (DMAC)
10.2 Input/Output Pins
Table 10.1 shows the DMAC pin configuration.
Table 10.1 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.4.00 Mar. 27, 2008 Page 169 of 882
REJ09B0108-0400