SH7713 Datasheet, PDF (501/904 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7700 Series

Section 13 Direct Memory Access Controller (DMAC)
13.2 Input/Output Pins
The external pins for the DMAC are described below.
Table 13.1 lists the configuration of the pins that are connected to external bus. The DMAC has
pins for 2 channels (channels 0 and 1) for external bus use.
Table 13.1 Pin Configuration
Channel Name
Abbreviation I/O
0
DMA transfer request DREQ0
I
DMA transfer request DACK0
O
acknowledge
DMA transfer end
TEND0
O
1
DMA transfer request DREQ1
I
DMA transfer request DACK1
O
acknowledge
DMA transfer end
TEND1
O
Function
DMA transfer request input from
external device to channel 0
DMA transfer request acknowledge
output from channel 0 to external
device
DMA transfer end output for channel 0
DMA transfer request input from
external device to channel 1
DMA transfer request acknowledge
output from channel 1 to external
device
DMA transfer end output for channel 1
Rev.1.50 Aug. 30, 2006 Page 461 of 860
REJ09B0288-0150