Hitachi H8/3022 Hardware Manual page 626

H8/3022 series hitachi single-chip microcomputer
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RDR—Receive Data Register
Bit
Initial value
Read/Write
Note: Bit functions are the same as for SCI0.
P1DDR—Port 1 Data Direction Register
Bit
P1 DDR
Initial value
Modes
1 and 3
Read/Write
Initial value
Modes
5 to 7
Read/Write
P2DDR—Port 2 Data Direction Register
Bit
P2 DDR
Initial value
Modes
1 and 3
Read/Write
Initial value
Modes
5 to 7
Read/Write
7
6
0
0
R
R
7
6
P1 DDR
P1 DDR
7
6
1
1
0
0
W
W
7
6
P2 DDR
P2 DDR
7
6
1
1
0
0
W
W
5
4
0
0
R
R
5
4
P1 DDR
P1 DDR
5
4
1
1
0
0
W
W
Port 1 input/output select
0 Generic input pin
1 Generic output pin
5
4
P2 DDR
P2 DDR
5
4
1
1
0
0
W
W
Port 2 input/output select
0 Generic input pin
1 Generic output pin
H'BD
3
2
0
0
R
R
H'C0
3
2
P1 DDR
P1 DDR
3
2
1
1
0
0
W
W
H'C1
3
2
P2 DDR
P2 DDR
3
2
1
1
0
0
W
W
SCI1
1
0
0
0
R
R
Port 1
1
0
P1 DDR
1
0
1
1
0
0
W
W
Port 2
1
0
P2 DDR
1
0
1
1
0
0
W
W
617

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