Specifications

The Pace-Setting Performance and Features of the 56F8300 Hybrid Controllers
MOTOROLA Motorola 56F8300 Hybrid Controller Family 25
The advanced features of the 56F8300 Series make it an excellent choice for industrial applications.
Figure 1-14 shows an ADC module used for simultaneous conversions with the PWM module’s
trigger source. Using the simultaneous mode, two conversions occur at the same exact time. And since
the ADC inputs have a software-controlled input mux, any two ADC input lines can be simultaneously
sampled.
Figure 1-14. Simultaneous ADC Conversion
The triggering mechanism for the ADC is very flexible. The main sources are from the internal
software or through a hardware timer. The timer can be free running, tied to an external input, or, as
demonstrated, tied to the PWM. Figure 1-15 shows how to use the hardware timer to precisely delay
the conversion trigger, allowing for exact positioning of the sample where needed and providing the
lowest possible jitter. This method can be used with the PWM or an external trigger signal.
A
B
C
A
B
C
i
b
i
b
i
c
i
c
i
a
i
a
(implied)
i
a
i
b
Trigger
for both
ADCs
ADC1
ADC2
Perfect for
Vector Control!
Perfect for
Vector Control!
M
Motor o la
Dave’s
Control
Center
M
Motor o la
Dave’s
Control
Center
ia +ib +ic = 0
Delay
PWM
Module
PWM Synch
Signal
Software
Trigger
Command
Frees
cale Semiconductor,
I
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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