Pin Configuration (Sh7751R); Table 14.12 Dmac Pins - Hitachi SH7751 Hardware Manual

14.6.2

Pin Configuration (SH7751R)

Tables 14.12 and 14.13 show the pin configuration of the DMAC.

Table 14.12 DMAC Pins

Channel Pin Name
0 DMA transfer
request
DREQ acceptance
confirmation
DMA transfer end
notification
1 DMA transfer
request
DREQ acceptance
confirmation
DMA transfer end
notification
Abbreviation I/O


Input
DRAK0 Output
DACK0 Output


Input
DRAK1 Output
DACK1 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. 3.0, 04/02, page 551 of 1064