Peripheral highlights
• Enhanced input capture and output compare functionality on each input
• Channels not used for PWM generation can be used for buffered output compare
functions
• Channels not used for PWM generation can be used for input capture functions
• Enhanced dual edge capture functionality
• Synchronization to external hardware or other PWM supported
• Double buffered PWM registers
• Integral reload rates from 1 to 16
• Half-cycle reload capability
• Multiple output trigger events can be generated per PWM cycle via hardware
• Support for double switching PWM outputs
• Up to eight fault inputs can be assigned to control multiple PWM outputs
• Programmable filters for fault inputs
• Independently programmable PWM output polarity
• Individual software control of each PWM output
• All outputs can be programmed to change simultaneously via a FORCE_OUT event
• PWMX pin can optionally output a third PWM signal from each submodule
• Option to supply the source for each complementary PWM signal pair from any of
the following:
• Crossbar module outputs
• External ADC input, taking into account values set in ADC high and low limit
registers
1.6.2 12-bit Analog-to-Digital Converter (Cyclic type)
• Two independent 12-bit analog-to-digital converters (ADCs)
• 2 x 8-channel external inputs
• Built-in x1, x2, x4 programmable gain pre-amplifier
• Maximum ADC clock frequency is up to 20 MHz with 50 ns period
• Single conversion time of 8.5 ADC clock cycles
• Additional conversion time of 6 ADC clock cycles
• Sequential, parallel, and independent scan mode
• First 8 samples have offset, limit and zero-crossing calculation supported
• ADC conversions can be synchronized by any module connected to internal crossbar
module, such as PWM and timer modules and GPIO and comparators
• Support for simultaneous and software triggering conversions
• Support for multi-triggering mode with a programmable number of conversions on
each trigger
• Each ADC has ability to scan and store up to 8 conversion results
MC56F844xx Advance Information Data Sheet, Rev. 2, 06/2012.
8
Freescale Semiconductor, Inc.
Preliminary
General Business Information
FREESCALE [ Freescale ]
