HD64F3437TF16 Datasheet, PDF (673/752 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.

TCR—Timer Control Register
H'A0
PWM0
Bit
7
6
5
4
3
2
1
0
OE
OS
—
—
—
CKS2 CKS1 CKS0
Initial value
0
0
1
1
1
0
0
0
Read/Write
R/W
R/W
—
—
—
R/W
R/W
R/W
Clock Select (Values when ø_P = 10 MHz)
Internal
PWM PWM
clock freq. Resolution period frequency
000
1
10
1
100
1
10
1
ø_P/2
ø_P/8
ø_P/32
ø_P/128
ø_P/256
ø_P/1024
ø_P/2048
ø_P/4096
200 ns
800 ns
3.2 µs
12.8 µs
25.6 µs
102.4 µs
204.8 µs
409.6 µs
50 µs
200 µs
800 µs
3.2 ms
6.4 ms
25.6 ms
51.2 ms
102.4 ms
20 kHz
5 kHz
1.25 kHz
312.5 Hz
156.3 Hz
39.1 Hz
19.5 Hz
9.8 Hz
Output Select
0 Positive logic
1 Negative logic
Output Enable
0 PWM output disabled; TCNT cleared to H'00 and stops.
1 PWM output enabled; TCNT runs.
DTR—Duty Register
H'A1
PWM0
Bit
7
6
5
4
3
2
1
0
Initial value
Read/Write
1
1
1
1
1
1
1
1
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Pulse duty cycle
644