Hitachi H8/3048 Hardware Manual page 815

P8DDR—Port 8 Data Direction Register
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Bit
Initial value
Modes
1 to 4
Read/Write
Initial value
Modes
5 to 7
Read/Write
P7DR—Port 7 Data Register
Bit 7
P7
7
Initial value —
*
Read/Write R
Note: * Determined by pins P7 to P7 .
P8DR—Port 8 Data Register
Bit 7
—
Initial value 1
Read/Write —
7 6 5
— — —
1 1 1
— — —
1 1 1
— — —
Port 8 input/output select
0 Generic input
CS
1
6 5 4
P7 P7 P7
6 5
— — —
* *
R R R
Read the pin levels for port 7
7 0
6 5
— — P8
1 1
— — R/W
808
H'CD
4 3
P8 DDR P8 DDR P8 DDR
4 3
1
0
W W
0 0
W W
output
H'CE
3 2
P7 P7
4 3 2
— —
* * *
R R
H'CF
4 3 2
P8 P8
4 3 2
0 0 0
R/W R/W
Data for port 8 pins
Port 8
2 1 0
P8 DDR P8 DD
2 1 0
0 0 0
W W W
0 0 0
W W W
Port 8 input/output se
0 Generic input
1 Generic output
Port 7
1 0
P7 P7
1 0
— —
* *
R R
Port 8
1 0
P8 P8
1 0
0 0
R/W R/W