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Section 18 Multi-Function Timer Pulse Unit (MTU)
Rev. 4.00 Sep. 14, 2005 Page 580 of 982
REJ09B0023-0400
Figure 18.23 shows examples of PWM waveform output with 0% duty cycle and 100% duty cycle
in PWM mode.
TCNT value
TGRA
H'0000
TIOCA
Time
TGRB
0% duty cycle
TGRB rewritten
TGRB
rewritten
TGRB rewritten
TCNT value
TGRA
H'0000
TIOCA
Time
TGRB
100% duty cycle
TGRB rewritten
TGRB rewritten
TGRB rewritten
Output does not change when cycle register and duty register
compare matches occur simultaneously
TCNT value
TGRA
H'0000
TIOCA
Time
TGRB
100% duty cycle
TGRB rewritten
TGRB rewritten
TGRB rewritten
Output does not change when cycle register and duty
register compare matches occur simultaneously
0% duty cycle
Figure 18.23 Example of PWM Mode Operation (3)