HD6433802H Datasheet, PDF (154/435 Pages) Hitachi Semiconductor – Single-Chip Microcomputer

Bit 1: P3₁/TMOFL pin function switch (TMOFL)
This bit selects whether pin P3₁/TMOFL is used as P3₁ or as TMOFL.
Bit 1
TMOFL
0
1
Description
Functions as P3₁ I/O pin
Functions as TMOFL output pin
(initial value)
Bit 0: Reserved bit
Bit 0 is reserved; only 0 can be written to this bit.
5. Port mode register 2 (PMR2)
Bit
7
6
5
4
3
2
1
0
—
—
POF1
—
—
—
—
IRQ₀
Initial value
1
1
0
1
1
—
—
0
Read/Write
—
—
R/W
—
—
W
W
R/W
PMR2 is an 8-bit read/write register controlling the PMOS on/off state for the P3₅ pin.
Bit 5: P3₅ pin PMOS control (POF1)
This bit controls the on/off state of the P3₅ pin output buffer PMOS.
Bit 5
POF1
0
1
Description
CMOS output
NMOS open-drain output
(initial value)
136