ST STM32F101xx Reference Manual page 247

RM0034
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Interrupt/DMA generation on the following events:
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Supports incremental (quadrature) encoder and hall-sensor cicuitry for positioning
purposes
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Trigger intput for external clock or cycle-by-cycle current management
Update: counter overflow/underflow, counter initialization (by software or
internal/external trigger)
Trigger event (counter start, stop, initialization or count by internal/external trigger)
Input capture
Output compare
Break input
Advanced-control timers (TIM1&TIM8)
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