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ST STM32F10 Series User Manual

ST STM32F10 Series
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UM0306 Advanced control timer (TIM1)
197/519
Bit 3 Reserved, always read as 0.
Bits 2:0
SMS Slave mode selection.
When external signals are selected the active edge of the trigger signal (TRGI) is
linked to the polarity selected on the external input (see Input Control register and
Control Register description.
000: Slave mode disabled - if CEN = ‘1’ then the prescaler is clocked directly by the
internal clock.
001: Encoder mode 1 - Counter counts up/down on TI2FP2 edge depending on
TI1FP1 level.
010: Encoder mode 2 - Counter counts up/down on TI1FP1 edge depending on
TI2FP2 level.
011: Encoder mode 3 - Counter counts up/down on both TI1FP1 and TI2FP2 edges
depending on the level of the other input.
100: Reset Mode - Rising edge of the selected trigger input (TRGI) reinitializes the
counter and generates an update of the registers.
101: Gated Mode - The counter clock is enabled when the trigger input (TRGI) is
high. The counter stops (but is not reset) as soon as the trigger becomes low. Both
start and stop of the counter are controlled.
110: Trigger Mode - The counter starts at a rising edge of the trigger TRGI (but it is
not reset). Only the start of the counter is controlled.
111: External Clock Mode 1 - Rising edges of the selected trigger (TRGI) clock the
counter.
Note: The gated mode must not be used if TI1F_ED is selected as the trigger input
(TS=’100’). Indeed, TI1F_ED outputs 1 pulse for each transition on TI1F, whereas the
gated mode checks the level of the trigger signal.
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ST STM32F10 Series Specifications

General IconGeneral
BrandST
ModelSTM32F10 Series
CategoryMicrocontrollers
LanguageEnglish

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