Datasheet

Chapter 11 Pulse Width Modulator with Fault Protection (PMF15B6CV2)
MC9S12E128 Data Sheet, Rev. 1.07
326 Freescale Semiconductor
Figure 11-2. Detail of Mux, Swap, and Deadtime Functions
11.2 External Signal Description
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.
PWM source selection is based on a number of factors:
— State of current sense pins
— IPOL bit
— OUTCTL bit
— Center vs edge aligned
PWM
GENERATOR
0
PWM
GENERATOR
SWAPA
OUT0
OUT1
1
1
GENERATE
COMPLEMENT &
INSERT DEADTIME
1
1
INDEPA
FAULT
&
POLARITY
CONTROL
PAD0
PAD1
MSK0
MSK1
OUTCTL1
OUTCTL0
1
IPOLA or
ISENS0 or
OUTCTL0