H8S2678 Datasheet, PDF (626/979 Pages) Renesas Technology Corp – Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2600 Series

Section 11 16-Bit Timer Pulse Unit (TPU)
Figure 11.23 shows examples of PWM waveform output with 0% duty cycle and 100% duty cycle
in PWM mode.
TCNT value
TGRB rewritten
TGRA
TGRB
H'0000
TIOCA
TGRB rewritten
TGRB
rewritten
0% duty
Time
TCNT value
TGRA
TGRB rewritten
TGRB
H'0000
TIOCA
Output does not change when cycle register and duty register
compare matches occur simultaneously
TGRB rewritten
100% duty
TGRB rewritten
Time
TCNT value
TGRA
TGRB rewritten
Output does not change when cycle register and duty
register compare matches occur simultaneously
TGRB rewritten
TGRB
H'0000
TIOCA
100% duty
0% duty
TGRB rewritten
Time
Figure 11.23 Example of PWM Mode Operation (3)
Rev. 3.00 Mar 17, 2006 page 576 of 926
REJ09B0283-0300