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56F8346EVM User Manual
MOTOROLA
2.14 Motor Control PWM Signals and LEDs
The 56F8346 has two independent groups of dedicated PWM units. Each unit contains six
PWM and three Phase Current sense inputs. One PWM unit has four Fault input lines,
while the other has three Fault input lines. PWM group A’s PWM lines are connected to a
set of six PWM LEDs via inverting buffers. The buffers are used to isolate and drive the
device’s PWM group A’s outputs to the PWM LEDs. The PWM LEDs indicate the status
of PWM group A signals; refer to
. PWM Group A and B signals are routed
out to headers, J10 and J11 respectively, and to the peripheral daughter card connector for
easy use by the end user.
Figure 2-12. PWM Group A Interface and LEDs
LED
+3.3V
LED9
56F8346
LED10
LED11
LED12
LED7
LED8
PWMA0
PWMA1
PWMA2
PWMA3
PWMA5
Buffer
PWMA0
Yellow LED
PWMA1
PWMA2
PWMA3
PWMA4
PWMA5
Green LED
Yellow LED
Green LED
Yellow LED
Green LED
Phase A Top
Phase A Bottom
Phase B Top
Phase B Bottom
Phase C Top
Phase C Bottom
PWMA4
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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