Peripheral highlights
1.6.3 Periodic Interrupt Timer (PIT) Modules
• 16-bit counter with programmable count modulo
• PIT0 is master and PIT1 is slave (if synchronizing both PITs)
• The output signals of both PIT0 and PIT1 are internally connected to a peripheral
crossbar module
• Can run when the CPU is in Wait/Stop modes. Can also wake up the CPU from
Wait/Stop modes.
• In addition to its existing bus clock (up to 50 MHz), 3 alternate clock sources for the
counter clock are available:
• Crystal oscillator output
• 8 MHz / 400 kHz ROSC (relaxation oscillator output)
• On-chip low-power 200 kHz oscillator
1.6.4 Inter-Module Crossbar and AND-OR-INVERT logic
• Provides generalized connections between and among on-chip peripherals: ADCs,
12-bit DAC, comparators, quad-timers, eFlexPWMs, EWM, and select I/O pins
• User-defined input/output pins for all modules connected to the crossbar
• DMA request and interrupt generation from the crossbar
• Write-once protection for all registers
• AND-OR-INVERT function provides a universal Boolean function generator that
uses a four-term sum-of-products expression, with each product term containing true
or complement values of the four selected inputs (A, B, C, D).
1.6.5 Comparator
• Full rail-to-rail comparison range
• Support for high and low speed modes
• Selectable input source includes external pins and internal DACs
• Programmable output polarity
• 6-bit programmable DAC as a voltage reference per comparator
• Three programmable hysteresis levels
• Selectable interrupt on rising-edge, falling-edge, or toggle of a comparator output
1.6.6 12-bit Digital-to-Analog Converter
• 12-bit resolution
• Powerdown mode
MC56F827xx, Rev. 4.1, 11/2018
NXP Semiconductors
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