ST STM32L4+ Series Reference Manual page 1387

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only by software (except UG which remains cleared automatically). As soon as the CEN bit

is written to 1, the prescaler is clocked by the internal clock CK_INT.

without prescaler.

Figure 404. Control circuit in normal mode, internal clock divided by 1

Counter clock = CK_CNT = CK_PSC

Counter register

External clock source mode 1

This mode is selected when SMS=111 in the TIMx_SMCR register. The counter can count at

each rising or falling edge on a selected input.

shows the behavior of the control circuit and the upcounter in normal mode,

Internal clock

Figure 405. TI2 external clock connection example

TI2F_Falling

General-purpose timers (TIM15/TIM16/TIM17)

(internal clock)

RM0432 Rev 6

External clock

Internal clock

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