STM32L053 datasheet(19/132 Pages) STMICROELECTRONICS

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STM32L053x6 STM32L053x8

Functional overview

3.2

Interconnect matrix

Several peripherals are directly interconnected. This allows autonomous communication

between peripherals, thus saving CPU resources and power consumption. In addition,

these hardware connections allow fast and predictable latency.

Depending on peripherals, these interconnections can operate in Run, Sleep, Low-power

run, Low-power sleep and Stop modes.

Table 5. STM32L0xx peripherals interconnect matrix

Interconnect

source

Interconnect

destination

Interconnect action

Run Sleep

Low-

power

run

Low-

power

sleep

Stop

COMPx

TIM2,TIM21,

TIM22

Timer input channel,

trigger from analog

signals comparison

LPTIM

Timer input channel,

trigger from analog

signals comparison

TIMx

Timer triggered by other

timer

RTC

TIM21

Timer triggered by Auto

wake-up

LPTIM

Timer triggered by RTC

event

All clock

source

TIMx

Clock source used as

input channel for RC

measurement and

trimming

USB

CRS/HSI48

the clock recovery

system trims the HSI48

based on USB SOF

GPIO

TIMx

Timer input channel and

trigger

LPTIM

Timer input channel and

trigger

ADC,DAC

Conversion trigger

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