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PMR3—Port mode register 3
Bit
⎯
Initial value
⎯
Read/Write
PMR4—Port mode register 4
Bit
NMOD7
Initial value
Read/Write
R/W
7
6
5
⎯
⎯
0
0
0
⎯
⎯
P3 /SO pin function switch
0 Functions as P3 I/O pin
1 Functions as SO output pin
7
6
5
NMOD6
NMOD5
0
0
0
R/W
R/W
0 P2 has CMOS output
1 P2 has NMOS open-drain output
Appendix B Internal I/O Registers
4
3
⎯
⎯
0
0
⎯
⎯
P3 /SCK pin function switch
0
1
0 Functions as P3 I/O pin
1 Functions as SCK I/O pin
P3 /SI pin function switch
1
1
0 Functions as P3 I/O pin
1 Functions as SI input pin
2
1
2
1
4
3
NMOD4
NMOD3
0
0
R/W
R/W
n
n
Rev.3.00 Jul. 19, 2007 page 493 of 532
H'CA
(H8/3857 Group only)
2
1
SO1
SI1
0
0
R/W
R/W
0
1
1
1
H'CB
2
1
NMOD2
NMOD1
0
0
R/W
R/W
REJ09B0397-0300
I/O ports
0
SCK1
0
R/W
I/O ports
0
NMOD0
0
R/W
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