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