SH7750_08 Datasheet, PDF (633/1162 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer

Section 14 Direct Memory Access Controller (DMAC)
14.1.3 Pin Configuration (SH7750, SH7750S)
Tables 14.1 and 14.2 show the DMAC pins.
Table 14.1 DMAC Pins
Channel
0
Pin Name
DMA transfer
request
DREQ acceptance
confirmation
Abbreviation
DREQ0
DRAK0
DMA transfer end DACK0
notification
1
DMA transfer
DREQ1
request
DREQ acceptance DRAK1
confirmation
DMA transfer end DACK1
notification
I/O
Input
Output
Output
Input
Output
Output
Function
DMA transfer request input from
external device to channel 0
Acceptance of request for DMA
transfer from channel 0 to external
device
Notification to external device of start
of execution
Strobe output to external device of
DMA transfer request from channel 0
to external device
DMA transfer request input from
external device to channel 1
Acceptance of request for DMA
transfer from channel 1 to external
device
Notification to external device of start
of execution
Strobe output to external device of
DMA transfer request from channel 1
to external device
Rev.7.00 Oct. 10, 2008 Page 549 of 1074
REJ09B0366-0700