SH7040 Datasheet, PDF (254/923 Pages) Renesas Technology Corp – Renesas 32-Bit Single-Chip RISC Microprocessor SuperH RISC engine Family/SH7040 Series(CPU Core SH-2)

11.1.3 Pin Configuration
Table 11.1 shows the DMAC pins.
Table 11.1 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
216