TIMER A
[Precautions for pulse width modulation (PWM) mode]
[Precautions for pulse width modulation (PWM) mode]
1. If the count start bit is cleared to “0” during PWM pulse output, the counter stops counting. If the TAiOUT
pin outputs “H” level at that time, the output level will become “L” and the timer Ai interrupt request bit
will be set to “1.” When the TAiOUT pin outputs “L” level at that time, the output level will not change and
no timer Ai interrupt request will occur.
2. When the timer’s operating mode is set by one of the following procedures, the timer Ai interrupt request
bit is set to “1.”
ꢀWhen the PWM mode is selected after reset
ꢀWhen the operating mode is switched from the timer mode to the PWM mode
ꢀWhen the operating mode is switched from the event counter mode to the PWM mode
Accordingly, when using a timer Ai interrupt (interrupt request bit), be sure to clear the timer Ai interrupt
request bit to “0” after the above setting.
7905 Group User’s Manual Rev.1.0
7-48
RENESAS [ RENESAS TECHNOLOGY CORP ]
