Datasheet

Chapter 11 Pulse Width Modulator with Fault Protection (PMF15B6C) Module
MC9S12E256 Data Sheet, Rev. 1.10
332 Freescale Semiconductor
Figure 11-2. Detail of Mux, Swap, and Deadtime Functions
11.2 Signal Descriptions
The pulse width modulator has external pins named PWM0–5, FAULT0–3, and IS0–IS2.
11.2.1 PWM0–PWM5 Pins
PWM0–PWM5 are the output pins of the six PWM channels.
11.2.2 FAULT0–FAULT3 Pins
FAULT0–FAULT3 are input pins for disabling selected PWM outputs.
11.2.3 IS0–IS2 Pins
IS0–IS2 are current status pins for top/bottom pulse width correction in complementary channel operation
while deadtime is asserted.
SWAPA
OUT0
OUT1
INDEPA
PAD0
PAD1
MSK0
MSK1
OUTCTL1
OUTCTL0
PWM source selection is based
on a number of factors:
• State of current sense pins
• IPOL bit
• OUTCTL bit
• Center versus edge aligned
PWM
GENERATOR 1
PWM
GENERATOR 0
IPOLA or
ISENS0 or
OUTCTL0
1
1
1
1
GENERATE
COMPLEMENT
AND INSERT
DEADTIME
FAULT
AND
POLARITY
CONTROL