CHAPTER 13 PWM UNIT
447
User’s Manual U14359EJ4V0UM
13.4.2 Repetition frequency
The repetition frequencies of PWMn are shown below (n = 0, 1).
PWMn Operating
Frequency
Resolution
Repetition Frequency
f
XX
/2
8 bits
9 bits
10 bits
12 bits
f
XX
/2
9
f
XX
/2
10
f
XX
/2
11
f
XX
/2
13
f
XX
/4
8 bits
9 bits
10 bits
12 bits
f
XX
/2
10
f
XX
/2
11
f
XX
/2
12
f
XX
/2
14
f
XX
/8
8 bits
9 bits
10 bits
12 bits
f
XX
/2
11
f
XX
/2
12
f
XX
/2
13
f
XX
/2
15
f
XX
/16
8 bits
9 bits
10 bits
12 bits
f
XX
/2
12
f
XX
/2
13
f
XX
/2
14
f
XX
/2
16
f
XX
/32
8 bits
9 bits
10 bits
12 bits
f
XX
/2
13
f
XX
/2
14
f
XX
/2
15
f
XX
/2
17
f
XX
/64
8 bits
9 bits
10 bits
12 bits
f
XX
/2
14
f
XX
/2
15
f
XX
/2
16
f
XX
/2
18
Remark
f
XX
: Internal system clock
13.5 Cautions
The PWM0 pin has an alternate function as the P00 pin (Port 0) and the PWM1 pin has an alternate function as
the P10 pin (Port 1). When using these pins for PWMn output, set the bits corresponding to the PMC0 and PMC1
registers to 1.
If the bit settings corresponding to the PMC0 and PMC1 registers are changed during PWMn pulse output, the
PWMn pulse output is not guaranteed.