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PUCR1—Port pull-up control register 1
Bit
PUCR1
Initial value
Read/Write
R/W
Note: * PUCR1
, PUCR1
6
In the H8/3854 Group these bits are reserved, and must always be cleared to 0.
PUCR3—Port pull-up control register 3
Bit
PUCR3
Initial value
Read/Write
R/W
PUCR5—Port pull-up control register 5
Bit
PUCR5
Initial value
Read/Write
R/W
PCR1—Port control register 1
Bit
PCR1
Initial value
Read/Write
W
Note: * PCR1
, PCR1
6
In the H8/3854 Group these bits are reserved, and must always be cleared to 0.
7
6
5
*
PUCR1
PUCR1
7
6
0
0
0
R/W
R/W
, and PUCR1
4
7
6
5
PUCR3
PUCR3
7
6
0
0
0
R/W
R/W
7
6
5
PUCR5
PUCR5
7
6
0
0
0
R/W
R/W
7
6
5
*
PCR1
PCR1
7
6
0
0
0
W
W
, and PCR1
are functions of the H8/3857 Group only.
4
3
4
3
*
PUCR1
PUCR1
5
4
0
0
R/W
R/W
are functions of the H8/3857 Group only.
3
4
3
PUCR3
PUCR3
5
4
0
0
R/W
R/W
4
3
PUCR5
PUCR5
5
4
0
0
R/W
R/W
4
3
*
PCR1
PCR1
5
4
3
0
0
W
W
Port 1 input/output select
0 Input pin
1 Output pin
Rev.3.00 Jul. 19, 2007 page 497 of 532
Appendix B Internal I/O Registers
H'E0
2
1
*
PUCR1
PUCR1
3
2
1
0
0
R/W
R/W
H'E1
(H8/3857 Group only)
2
1
PUCR3
PUCR3
3
2
1
0
0
R/W
R/W
H'E2
2
1
PUCR5
PUCR5
3
2
1
0
0
R/W
R/W
H'E4
2
1
*
PCR1
PCR1
2
1
0
0
W
W
REJ09B0397-0300
I/O ports
0
PUCR1
0
0
R/W
I/O ports
0
PUCR3
0
0
R/W
I/O ports
0
PUCR5
0
0
R/W
I/O ports
0
PCR1
0
0
W
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