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