mc9s12e256 Freescale Semiconductor, Inc, mc9s12e256 Datasheet - Page 322

• Manufacturer Part Number: mc9s12e256
• Description: Hcs12 Microcontrollers 16-bit Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

Chapter 11 Pulse Width Modulator with Fault Protection (PMF15B6CV2)
11.2
The pulse width modulator has external pins named PWM0–5, FAULT0–3, and IS0–IS2.
11.2.1
PWM0–PWM5 are the output pins of the six PWM channels.
11.2.2
FAULT0–FAULT3 are input pins for disabling selected PWM outputs.
11.2.3
IS0–IS2 are current status pins for top/bottom pulse width correction in complementary channel operation
while deadtime is asserted.
322
PWM source selection is based on a number of factors:
— State of current sense pins
— IPOL bit
— OUTCTL bit
— Center vs edge aligned
GENERATOR
GENERATOR
PWM
IPOLA or
ISENS0 or
OUTCTL0
PWM
0
1
External Signal Description
PWM0–PWM5 Pins
FAULT0–FAULT3 Pins
IS0–IS2 Pins
Figure 11-2. Detail of Mux, Swap, and Deadtime Functions
OUT1
SWAPA
OUTCTL1
MC9S12E256 Data Sheet, Rev. 1.08
OUTCTL0
1
1
OUT0
INSERT DEADTIME
COMPLEMENT &
GENERATE
1
1
INDEPA
MSK1
MSK0
POLARITY
CONTROL
Freescale Semiconductor
FAULT
&
PAD0
PAD1