Fujitsu F2MC-8FX Hardware Manual page 279

Figure 16.11-2 Operating Diagram of PWM Timer Function (Variable-cycle Mode)
T00DR register value: "80 H ", and T01DR register value: "80 H " (duty ratio = 0%)
(timer 00 value >= timer 01 value)
Counter timer 00 value
Counter timer 01 value
T00DR register value: "40 H ", and T01DR register value: "80 H " (duty ratio = 50%)
Counter timer 00 value
Counter timer 01 value
T00DR register value: "00 H ", and T01DR register value: "FF H " (duty ratio = 99.6%)
Counter timer 00 value
Counter timer 01 value
00 H
00 H
H
PWM waveform
L
00 H
40 H
00 H
H
PWM waveform
L
00 H
00 H
H
PWM waveform
L
CHAPTER 16 8/16-BIT COMPOSITE TIMER
80 H 00 H
80 H 00 H
80 H 00 H 80 H 00 H
00 H 40 H
00 H
80 H 00 H 80 H 00 H
00 H
FF H 00 H
One count width
265