Datasheet

Section 8 8-Bit PWM Timer (PWMU)
Rev. 3.00 Sep. 28, 2009 Page 198 of 910
REJ09B0350-0300
Figure 8.1 shows a block diagram of the PWMU.
[Legend]
PWMPRE:
PWMREG:
PRELAT:
REGLAT:
PWMUO:
PWME:
φ
φ/2
φ/4
φ/8
PWMCONA:
PWMCONB:
PWMCONC:
PWMCOND:
PWM prescaler register
PWM duty setting register
Prescaler latch register
Duty setting latch register
PWM output waveform
PWM output enable signal
PWM control register
A for clock control
PWM control register B for output control
PWM control register C for mode control
PWM control register D for phase control
Clock
selection
Clock
generator
Module
data bus
PWM counter/comparator
PRE
LAT
Transfer
control
circuit
REG
LAT
PWM
PRE
PWMCONA
PWMCONB
PWMCONC
PWMCOND
PWMUO
PWM
REG
Controller
PWME
Figure 8.1 Block Diagram of PWMU Timer