Hitachi H8/500 Series - Page 395

386
TCR—Timer Control Register H'FFC0 PWM1
Bit 76543210
OE OS — — — CKS2 CKS1 CKS0
Initial value 00111000
Read/Write R/W R/W — — — R/W R/W R/W
Clock Select (Values When ø = 10MHz)
Internal Reso- PW PW
Clock Freq. lution Period Frequency
000 ø/2 200ns 50µs 20kHz
001 ø/8 800ns 200µs 5kHz
010 ø/32 3.2µs 800µs 1.25kHz
011 ø/128 12.8µs 3.2ms 312.5kHz
100 ø/256 25.6µs 6.4ms 156.3Hz
101 ø/1024 102.4µs 25.6ms 39.1Hz
110 ø/2048 204.8µs 51.2ms 19.5Hz
111 ø/4096 409.6µs 102.4ms 9.8Hz
Output Enable
0 PW output disabled; TCNT cleared to H'00 and stops.
1 PW output enabled; TCNT runs.
Output Select
0 Positive logic
1 Negative logic
DTR—Duty Register H'FFC1 PWM1
Bit 76543210
Initial value 11111111
Read/Write R/W R/W R/W R/W R/W R/W R/W R/W
Pulse duty factor
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