HD6433308 Datasheet, PDF (323/349 Pages) Hitachi Semiconductor – Hitachi Single-Chip MicroComputer

TCR—Timer Control Register
H’FFA0
PWM0
Bit
7
6
5
OE OS
—
Initial value 0
0
1
Read/Write R/W R/W
—
4
3
2
1
0
—
— CKS2 CKS1 CKS0
1
1
0
0
0
—
— R/W R/W R/W
Clock Select (Values When Ø = 10MHz)
Internal Reso- PWM PWM
clock Freq. lution period frequency
0 0 0 Ø/2 200ns 50µs 20kHz
0 0 1 Ø/8 800ns 200µs 5kHz
0 1 0 Ø/32 3.2µs 800µs 1.25kHz
0 1 1 Ø/128 12.8µs 3.2ms 312.5Hz
1 0 0 Ø/256 25.6µs 6.4ms 156.3Hz
1 0 1 Ø/1024 102.4µs 25.6ms 39.1Hz
1 1 0 Ø/2048 204.8µs 51.2ms 19.5Hz
1 1 1 Ø/4096 409.6µs 102.4ms 9.8Hz
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’FFA1
PWM0
Bit
7
6
5
4
3
2
1
0
Initial value 1
1
1
1
1
1
1
1
Read/Write R/W R/W R/W R/W R/W R/W R/W R/W
Pulse duty factor
315