HD6413003RF Datasheet, PDF (358/715 Pages) Renesas Technology Corp – Microcontroller (MCU)

Example of Reset-Synchronized PWM Mode: Figure 10-32 shows an example of operation in
reset-synchronized PWM mode. TCNT3 operates as an up-counter in this mode. TCNT4 operates
independently, detached from GRA4 and GRB4. When TCNT3 matches GRA3, TCNT3 is
cleared and resumes counting from H'0000. The PWM outputs toggle at compare match with
GRB3, GRA4, GRB4, and TCNT3 respectively, and all toggle when the counter is cleared.
TCNT3 value
GRA3
GRB3
GRA4
GRB4
H'0000
TIOCA3
TIOCB3
TIOCA4
TOCXA4
TIOCB4
TOCXB4
Counter cleared at compare match with GRA3
Time
Figure 10-32 Operation in Reset-Synchronized PWM Mode
(When OLS3 = OLS4 = 1) (Example)
For the settings and operation when reset-synchronized PWM mode and buffer mode are both
selected, see section 10.4.8, Buffering.
340