Hitachi H8/3048 Hardware Manual page 816

P9DDR—Port 9 Data Direction Register
www.DataSheet4U.com
Bit
Initial value
Read/Write
PADDR—Port A Data Direction Register
Bit
PA DDR
Initial value
Modes
3, 4, 6
Read/Write
Modes
Initial value
1, 2,
Read/Write
5, 7
P9DR—Port 9 Data Register
Bit
Initial value
Read/Write
7 6 5
— — P9 DDR
5
1 1 0
— — W
7 6 5
PA DDR PA DDR
7 6 5
1 0 0
— W W
0 0 0
W W W
Port A input/output select
7 6 5
— — P9
5
1 1 0
— — R/W
H'D0
4 3
P9 DDR P9 DDR P9 DDR
4 3
0 0
W W
Port 9 input/output select
0 Generic input
1 Generic output
H'D1
4 3
PA DDR PA DDR PA DDR
4 4 3 3
0 0
W W
0 0
W W
0 Generic input
1 Generic output
H'D2
4 3
P9 P9 P9
4 3
0 0
R/W R/W R/W
Data for port 9 pins
809
Port 9
2 1 0
P9 DDR P9 DDR
2 1 0
0 0 0
W W W
Port A
2 1 0
PA DDR PA DDR
2 2 1 1 0 0
0 0 0
W W W
0 0 0
W W W
Port 9
2 1 0
P9 P9
2 1 0
0 0 0
R/W R/W