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STM32L431 Datasheet(PDF) 26 Page - STMicroelectronics

Part # STM32L431
Description  RTC with HW calendar, alarms and calibration
PDF  200 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STM32L431 Datasheet(HTML) 26 Page - STMicroelectronics

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Functional overview
STM32L431xx
26/200
DocID028800 Rev 1
3.10
Interconnect matrix
Several peripherals have direct connections between them. This allows autonomous
communication between peripherals, saving CPU resources thus power supply
consumption. In addition, these hardware connections allow fast and predictable latency.
Depending on peripherals, these interconnections can operate in Run, Sleep, low-power run
and sleep, Stop 0, Stop 1 and Stop 2 modes.
Table 5. STM32L431xx peripherals interconnect matrix
Interconnect source
Interconnect
destination
Interconnect action
TIMx
TIMx
Timers synchronization or chaining
Y
Y
Y
Y
-
-
ADCx
DACx
Conversion triggers
Y
Y
Y
Y
-
-
DMA
Memory to memory transfer trigger
Y
Y
Y
Y
-
-
COMPx
Comparator output blanking
Y
Y
Y
Y
-
-
TIM15/TIM16
IRTIM
Infrared interface output generation
Y
Y
Y
Y
-
-
COMPx
TIM1
TIM2
Timer input channel, trigger, break from
analog signals comparison
YY
YY
-
-
LPTIMERx
Low-power timer triggered by analog
signals comparison
YY
YY
Y
Y
(1)
ADCx
TIM1
Timer triggered by analog watchdog
Y
Y
Y
Y
-
-
RTC
TIM16
Timer input channel from RTC events
Y
Y
Y
Y
-
-
LPTIMERx
Low-power timer triggered by RTC alarms
or tampers
YY
YY
Y
Y
(1)
All clocks sources (internal
and external)
TIM2
TIM15, 16
Clock source used as input channel for
RC measurement and trimming
YY
YY
-
-
CSS
CPU (hard fault)
RAM (parity error)
Flash memory (ECC error)
COMPx
PVD
TIM1
TIM15,16
Timer break
Y
Y
Y
Y
-
-



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