HD643303x Hitachi, HD643303x Datasheet - Page 531

• Manufacturer Part Number: HD643303x
• Description: Hitachi Microcomputer
• Manufacturer: Hitachi

P1DR—Port 1 Data Register
P2DR—Port 2 Data Register
P3DDR—Port 3 Data Direction Register
Bit
Initial value
Read/Write
Bit
Initial value
Read/Write
Bit
Initial value
Read/Write
P3
R/W
R/W
P1
P2
7
W
7
0
7
0
7
DDR
0
7
7
P3
R/W
R/W
P1
P2
6
W
6
0
6
0
6
DDR
0
6
6
P3
R/W
R/W
P1
P2
5
W
5
0
5
0
5
DDR
0
5
5
Port 3 input/output select
0 Generic input
1 Generic output
Data for port 1 pins
Data for port 2 pins
P3
516
R/W
R/W
P1
P2
4
W
4
0
4
0
4
DDR
0
4
4
P3
R/W
R/W
P1
P2
3
W
3
0
3
0
3
DDR
0
3
3
P3
H'C2
H'C3
H'C4
R/W
R/W
P1
P2
2
W
2
0
2
0
2
DDR
0
2
2
P3
R/W
R/W
P1
P2
1
W
1
0
1
0
1
0
DDR
1
1
P3
R/W
R/W
P1
P2
0
W
0
0
Port 1
Port 2
0
0
Port 3
0
0
DDR
0
0