MC9S12HZ256 Datasheet, PDF (464/692 Pages) Freescale Semiconductor, Inc – HCS12 Microcontrollers

Chapter 15 Pulse-Width Modulator (PWM8B6CV1)
Clock A
Clock A/2, A/4, A/6,....A/512
8-Bit Down Counter ^{Count = 1}
Load
PWMSCLA
DIV 2 ^{Clock SA}
M
U
X
Clock B
Clock B/2, B/4, B/6,....B/512
M
U
8-Bit Down Counter ^{Count = 1}
X
Load
PWMSCLB
Clock SB
DIV 2
M
U
X
Clock to
PWM Ch 0
PCLK0
M
U
X
Clock to
PWM Ch 1
PCLK1
M
U
X
Clock to
PWM Ch 2
PCLK2
M
U
X
Clock to
PWM Ch 3
PCLK3
M
U
X
Clock to
PWM Ch 4
PCLK4
M
U
X
Clock to
PWM Ch 5
PCLK5
PRESCALE
SCALE
CLOCK SELECT
Figure 15-34. PWM Clock Select Block Diagram
MC9S12HZ256 Data Sheet, Rev. 2.04
464
Freescale Semiconductor