HD6412332 RENESAS [Renesas Technology Corp], HD6412332 Datasheet - Page 411

• Manufacturer Part Number: HD6412332
• Description: Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2300 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

9.9
9.9.1
Port 8 is a 7-bit I/O port. Port 8 pins also function as DMAC I/O pins (DREQ
DREQ
port 8 pin configuration.
1
, TEND
Port 8
Overview
1
, and DACK
Port 8
1
) and a bus control signal input pin (WAIT). Figure 9.8 shows the
Figure 9.8 Port 8 Pin Functions
Port 8 pins
P8
P8
P8
P8
P8
P8
P8
6
5
4
3
2
1
0
/ WAIT
/ DACK
/ DACK
/ TEND
/ TEND
/ DREQ
/ DREQ
1
0
1
0
1
0
Rev.4.00 Sep. 07, 2007 Page 381 of 1210
Pin functions in modes 4 to 6
P8
P8
P8
P8
P8
P8
P8
Pin functions in mode 7
P8
P8
P8
P8
P8
P8
P8
6
5
4
3
2
1
0
6
5
4
3
2
1
0
(I/O) / WAIT (input)
(I/O) / DACK
(I/O) / DACK
(I/O) / TEND
(I/O) / TEND
(I/O) / DREQ
(I/O) / DREQ
(I/O)
(I/O) / DACK
(I/O) / DACK
(I/O) / TEND
(I/O) / TEND
(I/O) / DREQ
(I/O) / DREQ
1
0
1
0
1
0
1
0
1
0
1
0
(output)
(output)
(output)
(output)
(output)
(output)
(output)
(output)
(input)
(input)
(input)
(input)
0
, TEND
REJ09B0245-0400
0
, DACK
0
,