Datasheet

Appendix B Internal I/O Registers
Rev. 8.00 Mar. 09, 2010 Page 596 of 658
REJ09B0042-0800
PCR1—Port Control Register 1 H'E4 I/O Ports
Bit
Initial value
Read/Write
7
PCR1
7
0
W
6
PCR1
6
*
0
W
5
⎯
⎯
W
3
PCR1
3
0
W
0
⎯
⎯
W
2
⎯
⎯
W
1
⎯
⎯
W
4
PCR1
4
0
W
Port 1 Input/Output Select
0 Input pin
1 Output pin
Note: * PCR1
6
is not equipped with H8/38124 Group.
PCR3—Port Control Register 3 H'E6 I/O Ports
Bit
Initial value
Read/Write
7
PCR3
0
W
6
PCR3
0
W
5
PCR3
0
W
4
PCR3
0
W
3
PCR3
0
W
0
PCR3
0
W
2
PCR3
0
W
1
PCR3
0
W
Port 3 Input/Output Select
0 Input pin
1 Output pin
234567 10
PCR4—Port Control Register 4 H'E7 I/O Ports
Bit
Initial value
Read/Write
7
⎯
1
⎯
6
⎯
1
⎯
5
⎯
1
⎯
4
⎯
1
⎯
3
⎯
1
⎯
0
PCR4
0
W
2
PCR4
0
W
1
PCR4
0
W
Port 4 Input/Output Select
0 Input pin
1 Output pin
021