SH7760 Datasheet, PDF (414/1345 Pages) Renesas Technology Corp – SuperHTM RISC engine

11.2 Input/Output Pins
Table 11.1 shows the DMAC pin configuration.
Table 11.1 Pin Configuration
Pin Name
DMA transfer
request
DREQ acceptance
confirmation
DREQ0
DRAK0
Abbreviation I/O
DREQ0
Input
DRAK0
Output
DMA transfer end DACK0 DACK0
notification
DMA transfer
request
DREQ acceptance
confirmation
DREQ1
DRAK1
DREQ1
DRAK1
Output
Input
Output
DMA transfer end DACK1 DACK1
notification
DMA transfer
request
DREQ acceptance
confirmation
DREQ2
DRAK2/
DREQ2
DRAK2
DMA transfer end DACK2 DACK2
notification
DMA transfer
request
DREQ3 DREQ3
Output
Input
Output
Output
Input
Function
DMA transfer request input from external
device
Notifies acceptance of DMA transfer
request and start of execution to
external device which has output
DREQ0*¹
Strobe output to external device which
has output DREQ0, regarding DMA
transfer request
DMA transfer request input from external
device
Notifies acceptance of DMA transfer
request and start of execution to
external device which has output
DREQ1*¹
Strobe output to external device which
has output DREQ1, regarding DMA
transfer request
DMA transfer request input from external
device
Notifies acceptance of DMA transfer
request to external device which has
output DREQ2*²
Strobe output to external device which
has output DREQ2, regarding DMA
transfer request*²
DMA transfer request input from external
device
Rev. 1.0, 02/03, page 364 of 1294