hd66100 Renesas Electronics Corporation., hd66100 Datasheet - Page 158

• Manufacturer Part Number: hd66100
• Description: H8/3867 Series
• Manufacturer: Renesas Electronics Corporation.

4. Port mode register 3 (PMR3)
PMR3 is an 8-bit read/write register, controlling the selection of pin functions for port 3 pins.
Upon reset, PMR3 is initialized to H'04.
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
Bit 5: Watchdog timer source clock select (WDCKS)
This bit selects the watchdog timer source clock.
Bit 5
WDCKS
0
1
Bit
Initial value
Read/Write
7
6
/AEVL pin function switch (AEVL)
/AEVH pin function switch (AEVH)
Description
Functions as P3
Functions as AEVL input pin
Description
Functions as P3
Functions as AEVH input pin
Description
ø/8192 selected
øw/32 selected
AEVL
R/W
7
0
AEVH
R/W
7
6
7
6
6
0
/AEVL is used as P3
/AEVH is used as P3
I/O pin
I/O pin
WDCKS
R/W
5
0
NCS
R/W
4
0
7
6
or as AEVL.
or as AEVH.
IRQ0
R/W
3
0
RESO
R/W
2
1
R/W
UD
1
0
(initial value)
(initial value)
(initial value)
PWM
R/W
0
0
143