DocID024597 Rev 5 329/1830
RM0351 Peripherals interconnect matrix
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Timer break is described in:
• Section 30.3.16: Using the break function (TIM1/TIM8)
• Section 32.4.13: Using the break function (TIM15/TIM16/TIM17)
Triggering signals
The output (from DFSDM1) is on signals dfsdm1_break[0:3] directly connected to timer and
‘Ored’ with other break input signals of the timer.
Active power mode
Run, Sleep, Low-power run, Low-power sleep.
10.3.7 From HSE, LSE, LSI, MSI, MCO, RTC to timer
(TIM2/TIM15/TIM16/TIM17)
Purpose
External clocks (HSE, LSE), internal clocks (LSI, MSI), microcontroller output clock (MCO),
GPIO and RTC wakeup interrupt can be used as input to general-purpose timer
(TIM15/16/17) channel 1.
This allows to calibrate the HSI16/MSI system clocks (with TIM15/TIM16 and LSE) or LSI
(with TIM16 and HSE). This is also used to precisely measure LSI (with TIM16 and HSI16)
or MSI (with TIM17 and HSI16) oscillator frequency.
When Low Speed External (LSE) oscillator is used, no additional hardware connections are
required.
This feature is described in Section 6.2.18: Internal/external clock measurement with
TIM15/TIM16/TIM17.
External clock LSE can be used as input to general-purpose timers (TIM2) on TIM2_ETR
pin, see Section 31.4.19: TIM2 option register 1 (TIM2_OR1).
Active power mode
Run, Sleep, Low-power run, Low-power sleep.
10.3.8 From RTC, COMP1, COMP2 to low-power timer (LPTIM1/LPTIM2)
Purpose
RTC alarm A/B, RTC_TAMP1/2/3 input detection, COMP1/2_OUT can be used as trigger to
start LPTIM counters (LPTIM1/2).
Triggering signals
This trigger feature is described in Section 34.4.5: Trigger multiplexer (and following
sections).
The input selection is described in Table 205: LPTIM external trigger connection.
Active power mode
Run, Sleep, Low-power run, Low-power sleep, Stop 0, Stop 1, Stop 2 (LPTIM1 only).
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