Datasheet

Appendix B Internal I/O Registers
Rev. 6.00 Aug 04, 2006 page 608 of 680
REJ09B0145-0600
PMR3—Port Mode Register 3 H'CA I/O port
Bit
Initial value
Read/Write
Note: * In the H8/38347 Group and H8/38447 Group this bit is reserved and cannot be written to.
7
AEVL
0
R/W
6
AEVH
0
R/W
5
WDCKS
0
R/W
3
IRQ0
0
R/W
0
PWM
0
R/W
2
RESO*
0
R/W
1
UD
0
R/W
4
NCS
0
R/W
P3
0
/PWM pin function switch
0 Functions as P3
0
I/O pin
1 Functions as PWM output pin
P3
2
/RESO pin function switch
0 Functions as P3
2
I/O pin
1 Functions as RESO I/O pin
P4
3
/IRQ0 pin function switch
0 Functions as P4
3
I/O pin
1 Functions as IRQ
0
input pin
Watchdog timer switch
0 φ8192
1
P3
1
/UD pin function switch
0 Functions as P3
1
I/O pin
1 Functions as UD input pin
TMIG noise canceler select
0 Noise cancellation function not used
1 Noise cancellation function used
P3
6
/AEVH pin function switch
0 Functions as P3
6
I/O pin
Functions as AEVH input pin
φw/4
1
P3
7
/AEVL pin function switch
0 Functions as P3
7
I/O pin
1 Functions as AEVL input pin