Datasheet

Appendix B Internal I/O Registers
Rev. 8.00 Mar. 09, 2010 Page 599 of 658
REJ09B0042-0800
PCRA—Port Control Register A H'ED I/O Ports
Bit
Initial value
Read/Write
7
⎯
1
⎯
6
⎯
1
⎯
5
⎯
1
⎯
4
⎯
1
⎯
3
PCRA
0
W
0
PCRA
0
W
2
PCRA
0
W
1
PCRA
0
W
0123
Port A Input/Output Select
0 Input pin
1 Output pin
PMRB—Port Mode Register B H'EE I/O Ports
Bit
Initial value
Read/Write
7
⎯
1
⎯
6
⎯
1
⎯
5
⎯
1
⎯
4
⎯
1
⎯
3
IRQ1
0
R/W
0
⎯
1
⎯
2
⎯
1
⎯
1
⎯
1
⎯
0 Functions as PB
3
/AN
3
input pin
1 Functions as IRQ
1
input pin
PB
3
/AN
3
/IRQ
1
Pin Function Switch