Datasheet

Pulse Width Modulator (PWM)
Functional Description
MC9S12DP256 — Revision 1.1
Pulse Width Modulator (PWM)
Figure 46 PWM Clock Select Block Diagram
2 4 8 16 32 64 128
PCKB2 PCKB1 PCKB0
M
U
X
Clock A
Clock B
Clock SA
Clock A/2, A/4, A/6,....A/512
PRESCALE SCALE
Divide by Prescaler Taps:
PFRZ
fipg_freeze
ipg_clock
CLOCK SELECT
M
U
X
PCLK0
Clock to
PWM Ch 0
M
U
X
PCLK2
Clock to
PWM Ch 2
M
U
X
PCLK1
Clock to
PWM Ch 1
M
U
X
PCLK4
Clock to
PWM Ch 4
M
U
X
PCLK5
Clock to
PWM Ch 5
M
U
X
PCLK6
Clock to
PWM Ch 6
M
U
X
PCLK7
Clock to
PWM Ch 7
M
U
X
PCLK3
Clock to
PWM Ch 3
Load
DIV 2
PWMSCLB
8-bit Down Counter
Clock SB
Clock B/2, B/4, B/6,....B/512
M
U
X
PCKA2 PCKA1 PCKA0
PWME7-0
Count=1
Load
DIV 2
PWMSCLA
8-bit Down Counter
Count=1
Freescale Semiconductor, I
Freescale Semiconductor, Inc.
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