HD64F3437TF16 Datasheet, PDF (691/752 Pages) Hitachi Semiconductor – 12 V must not be applied to the S-mask model (single-power-supply specification), as this may permanently damage the device.

TCORA—Time Constant Register A
H'CA
TMR0
Bit
7
6
5
4
3
2
1
0
Initial value
Read/Write
1
1
1
1
1
1
1
R/W
R/W
R/W
R/W
R/W
R/W
R/W
The CMFA bit is set to 1 when TCORA = TCNT.
TCORB—Time Constant Register B
H'CB
Bit
7
6
5
4
3
2
1
1
R/W
TMR0
0
Initial value
Read/Write
1
1
1
1
1
1
1
R/W
R/W
R/W
R/W
R/W
R/W
R/W
The CMFB bit is set to 1 when TCORB = TCNT.
TCNT—Timer Counter
H'CC
Bit
7
6
5
4
3
2
1
1
R/W
TMR0
0
Initial value
Read/Write
0
0
0
0
0
0
0
0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Count value
662