UPD784938 Datasheet, PDF (335/733 Pages) NEC – 16-Bit Single-Chip Microcontrollers

CHAPTER 11 TIMER/EVENT COUNTER 2
Figure 11-22. PWM Pulse Output (BW2 = 0)
TM2
count value
Count start
0H
CR20
Interrupt
FFH
FFH
CR20
FFH
CR20
TO2
Pulse width
Pulse width
Pulse cycle
Pulse cycle
Remark ALV2 = 0
Table 11-7. TO2/TO3 PWM Cycle (fXX = 12.58 MHz, BW2 = 0)
Count Clock
fXX/4
fXX/8
fXX/16
fXX/32
fXX/64
fXX/128
fXX/256
fXX/512
fXX/1,024
Minimum Pulse Width [µs]
0.32
0.64
1.27
2.54
5.09
10.17
20.35
40.70
81.40
PWM Cycle [ms]
0.08
0.16
0.33
0.65
1.30
2.60
5.21
10.42
20.84
PWM Frequency [Hz]
12,286
6,143
3,071
1,536
768
384
192
96
48
Preliminary User’s Manual U13987EJ1V0UM00
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