Hitachi H8/3048 Hardware Manual page 817

PADR—Port A Data Register
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Bit 7
PA
7
Initial value 0
Read/Write R/W
PBDDR—Port B Data Direction Register
Bit 7
PB DDR
7
Initial value 0
Read/Write W
PBDR—Port B Data Register
Bit 7
PB
7
Initial value 0
Read/Write R/W
6 5 4
PA PA PA
6 5
0 0 0
R/W R/W R/W
Data for port A pins
6 5 4
PB DDR PB DDR PB DDR
6 5 4
0 0 0
W W W
Port B input/output select
0 Generic input
1 Generic output
6 5 4
PB PB PB
6 5
0 0 0
R/W R/W R/W
Data for port B pins
810
H'D3
3 2
PA PA
4 3 2
0 0
R/W R/W
H'D4
3 2
PB DDR PB DDR PB DDR
3 2
0 0
W W
H'D6
3 2
PB PB
4 3 2
0 0
R/W R/W
Port A
1 0
PA PA
1 0
0 0
R/W R/W
Port B
1 0
PB DDR
1 0
0 0
W W
Port B
1 0
PB PB
1 0
0 0
R/W R/W