Table of Contents
P9DDR—Port 9 Data Direction Register
Bit
Initial value
Read/Write
PADDR—Port A Data Direction Register
Initial value
Modes 3, 4
Read/Write
Initial value
Modes 1, 2
Read/Write
PBDDR—Port B Data Direction Register
Bit
PB
Initial value
Read/Write
648
7
6
5
P9
DDR
5
1
0
1
W
7
6
Bit
PA
DDR
PA
DDR
7
6
1
0
W
0
0
W
W
7
6
5
DDR
PB
DDR
PB
DDR
7
6
5
0
0
0
W
W
W
4
3
P9
DDR
P9
DDR
4
3
0
0
W
W
Port 9 input/output select
0
Generic input
1
Generic output
5
4
3
PA
DDR
PA
DDR
PA
DDR
5
4
3
0
0
0
W
W
W
0
0
0
W
W
W
Port A input/output select
0
Generic input pin
1
Generic output pin
4
3
PB
DDR
PB
DDR
PB
4
3
0
0
W
W
Port B input/output select
Generic input
0
Generic output
1
H'EE008
2
1
P9
DDR
P9
DDR
P9
2
1
0
0
0
W
W
W
H'EE009
2
1
PA
DDR
PA
DDR
PA
2
1
0
0
W
W
0
0
W
W
H'EE00A
2
1
DDR
PB
DDR
PB
2
1
0
0
0
W
W
W
Port 9
0
DDR
0
Port A
0
DDR
0
0
W
0
W
Port B
0
DDR
0
Table of Contents
