hd64338023s Renesas Electronics Corporation., hd64338023s Datasheet - Page 247

• Manufacturer Part Number: hd64338023s
• Description: Renesas 8-bit Single-chip Microcomputer Super Low Power Series
• Manufacturer: Renesas Electronics Corporation.

Port Mode Register 3 (PMR3)
PMR3 is an 8-bit read/write register, controlling the selection of pin functions for port 3 pins.
Bit 7—P3
This bit selects whether pin P3
Bit 7
AEVL
0
1
Bit 6—P3
This bit selects whether pin P3
Bit 6
AEVH
0
1
Bits 5 to 3—Reserved
These bits are reserved; they can only be written with 0.
Bit 2—P3
This bit selects whether pin P3
Bit 2
TMOFH
0
1
Bit
Initial value
Read/Write
7
6
2
/AEVL Pin Function Switch (AEVL)
/AEVH Pin Function Switch (AEVH)
/TMOFH Pin Function Switch (TMOFH)
Description
Functions as P3
Functions as AEVL input pin
Description
Functions as P3
Functions as AEVH input pin
Description
Functions as P3
Functions as TMOFH output pin
AEVL
R/W
7
0
AEVH
R/W
7
6
2
7
6
2
6
0
/AEVL is used as P3
I/O pin
/AEVH is used as P3
I/O pin
/TMOFH is used as P3
I/O pin


W
5


W
4
7
6
or as AEVL.
or as AEVH.
2
or as TMOFH.
Rev. 7.00 Mar 10, 2005 page 205 of 652


W
3
TMOFH
R/W
2
0
TMOFL
Section 8 I/O Ports
R/W
REJ09B0042-0700
1
0
(initial value)
(initial value)
(initial value)
R/W
UD
0
0