Datasheet

Appendix B Internal I/O Registers
Rev. 8.00 Mar. 09, 2010 Page 593 of 658
REJ09B0042-0800
PDR8—Port Data Register 8 H'DB I/O Ports
Bit
Initial value
Read/Write
7
P8
7
0
R/W
6
P8
6
0
R/W
5
P8
5
0
R/W
4
P8
4
0
R/W
3
P8
3
0
R/W
0
P8
0
0
R/W
2
P8
2
0
R/W
1
P8
1
0
R/W
Data for port 8 pins
PDR9—Port Data Register 9 H'DC I/O Ports
Bit
Initial value
Read/Write
7
⎯
1
⎯
6
⎯
1
⎯
5
P9
5
1
R/W
4
P9
4
1
R/W
3
P9
3
1
R/W
0
P9
0
1
R/W
2
P9
2
1
R/W
1
P9
1
1
R/W
Data for port 9 pins
PDRA—Port Data Register A H'DD I/O Ports
Bit
Initial value
Read/Write
7
⎯
1
⎯
6
⎯
1
⎯
5
⎯
1
⎯
4
⎯
1
⎯
3
PA
0
R/W
0
PA
0
R/W
2
PA
0
R/W
1
PA
0
R/W
3021
Data for port A pins
PDRB—Port Data Register B H'DE I/O Ports
Bit
Read/Write
7
PB
7
R
6
PB
6
R
5
PB
5
R
4
PB
4
R
3
PB
3
R
0
PB
0
R
2
PB
2
R
1
PB
1
R
Read port B pin states