SH7047 Datasheet, PDF (251/764 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperHTMRISC engine Family/SH7000 Series

Figure 10.23 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 cycle
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
TGRB rewritten
100% duty cycle
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 cycle
TGRB rewritten
Time
0% duty cycle
Figure 10.23 Example of PWM Mode Operation (3)
Rev. 2.00, 09/04, page 211 of 720