Lptim Pins And Internal Signals; Lptim Trigger Mapping; Table 190. Lptim Input/Output Pins; Table 191. Lptim Internal Signals - ST STM32WL5 Series Reference Manual

RM0453
28.4.2

LPTIM pins and internal signals

The following tables provide the list of LPTIM pins and internal signals, respectively.
Names
LPTIM_IN1
LPTIM_IN2
LPTIM_ETR
LPTIM_OUT
Names
lptim_pclk
lptim_ker_ck
lptim_in1
lptim_in2
lptim_ext_trigx
lptim_out
lptim_it
lptim_wakeup
1. Only applies to LPTIM1
28.4.3

LPTIM trigger mapping

The LPTIM external trigger connections are detailed hereafter:

Table 190. LPTIM input/output pins

Signal type
Digital input
Digital input
Digital input
Digital output

Table 191. LPTIM internal signals

Signal type
Digital input
Digital input
Digital input
Digital input
Digital input
Digital output
Digital output
Digital output

Table 192. LPTIM1 external trigger connection

TRIGSEL
lptim_ext_trig0
lptim_ext_trig1
lptim_ext_trig2
lptim_ext_trig3
lptim_ext_trig4
lptim_ext_trig5
lptim_ext_trig6
lptim_ext_trig7
RM0453 Rev 1
Description
LPTIM Input 1 from GPIO pin
LPTIM Input 2 from GPIO pin
LPTIM external trigger GPIO pin
LPTIM Output GPIO pin
Description
LPTIM APB clock domain
LPTIM kernel clock
Internal LPTIM input 1
(1)
Internal LPTIM input 2
LPTIM external trigger input x
LPTIM counter output
LPTIM global interrupt
LPTIM wakeup event
External trigger
GPIO pin as LPTIM1_ETR alternate function
RTC ALARM A
RTC ALARM B
TAMP1 input detection
TAMP2 input detection
TAMP3 input detection
COMP1_OUT
COMP2_OUT
Low-power timer (LPTIM)
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