HD6417641 RENESAS [Renesas Technology Corp], HD6417641 Datasheet - Page 457

• Manufacturer Part Number: HD6417641
• Manufacturer: RENESAS [Renesas Technology Corp]

13.2
The external pins for DMAC are described below. Table 13.1 lists the configuration of the pins
that are connected to external bus. DMAC has pins for 2 channels (channels 0 and 1) for external
bus use.
Table 13.1 Pin Configuration
Channel Name
0
1
Input/Output Pins
DMA transfer request
DMA transfer request
acknowledge
DMA transfer end
DMA transfer request
DMA transfer request
acknowledge
Symbol
DREQ0
DACK0
TEND
DREQ1
DACK1
I/O
I
O
O
I
O
Section 13 Direct Memory Access Controller (DMAC)
Function
DMA transfer request input from external
device to channel 0
Strobe output to an external I/O at DMA
transfer request from external device to
channel 0
DMA transfer end output for channel 0
DMA transfer request input from external
device to channel 1
Strobe output to an external I/O at DMA
transfer request from external device to
channel 1
Rev. 4.00 Sep. 14, 2005 Page 407 of 982
REJ09B0023-0400