RM0440 Rev 4 845/2126
RM0440 High-resolution timer (HRTIM)
1083
27.2 Main features
• High-resolution timing units
– 184 ps resolution, compensated against voltage and temperature variations
– High-resolution available on all outputs, possibility to adjust duty-cycle, frequency
and pulse width in triggered one-pulse mode
– 6 16-bit timing units (each one with an independent counter and 4 compare units)
– 12 outputs that can be controlled by any timing unit, up to 32 set/reset sources per
channel
– Modular architecture to address either multiple independent converters with 1 or 2
switches or few large multi-switch topologies
• Up to 10 external events, available for any timing unit
– Programmable polarity and edge sensitivity
– 5 events with a fast asynchronous mode
– 5 events with a programmable digital filter
– Spurious events filtering with blanking and windowing modes
• Multiple links to built-in analog peripherals
– 4 triggers to ADC converters
– 3 triggers to DAC converters
– 3 comparators for analog signal conditioning
• Versatile protection scheme
– 6 fault inputs can be combined and associated to any timing unit
– Programmable polarity, edge sensitivity, and programmable digital filter
– Dedicated delayed protections for resonant converters
• Multiple HRTIM instances can be synchronized with external synchronization
inputs/outputs
• Versatile output stage
– High-resolution deadtime insertion (down to 735 ps)
– Programmable output polarity
– Chopper mode
• Burst mode controller to handle light-load operation synchronously on multiple
converters
• 8 interrupt vectors, each one with up to 14 sources
• 7 DMA requests with up to 14 sources, with a burst mode for multiple registers update
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