HD64F3642AHV Datasheet, PDF (514/551 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

Appendix B Internal I/O Registers
PMR3—Port mode register 3
H'FFFD
I/O ports
Bit
7
6
5
4
3
2
1
0
—
—
—
—
—
SO1
SI1 SCK1
Initial value
0
0
0
0
0
0
0
0
Read/Write
—
—
—
—
—
R/W R/W R/W
P3₀/SCK₁ pin function switch
0 Functions as P3₀ I/O pin
1 Functions as SCK₁ I/O pin
P3₁/SI₁ pin function switch
0 Functions as P3₁ I/O pin
1 Functions as SI₁ input pin
P3₂/SO₁ pin function switch
0 Functions as P3₂ I/O pin
1 Functions as SO₁ output pin
PMR7—Port mode register 7
H'FFFF
I/O ports
Bit
7
6
5
4
3
2
1
0
—
—
—
—
—
TXD
—
POF1
Initial value
1
1
1
1
1
0
0
0
Read/Write
—
—
—
—
—
R/W
—
R/W
P3₂/SO₁ pin PMOS control
0 CMOS output
1 NMOS open-drain output
P2₂/TXD pin function switch (TXD)
0 Functions as P2₂ I/O pin
1 Functions as TXD output pin
Rev. 6.00 Sep 12, 2006 page 492 of 526
REJ09B0326-0600