Lptim Pins And Internal Signals; Lptim Input And Trigger Mapping; Table 132. Lptim Input/Output Pins; Table 133. Lptim Internal Signals - ST STM32G0 1 Series Reference Manual

RM0444
26.4.2

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_mux1
lptim_in1_mux2
lptim_in1_mux3
lptim_in2_mux1
lptim_in2_mux2
lptim_in2_mux3
lptim_ext_trigx
lptim_out
lptim_it
lptim_wakeup
1. Only applies to LPTIM1
26.4.3

LPTIM input and trigger mapping

The LPTIM external trigger and input connections are detailed hereafter:

Table 132. LPTIM input/output pins

Signal type
Digital input
Digital input
Digital input
Digital output

Table 133. LPTIM internal signals

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

Table 134. LPTIM1 external trigger connection

TRIGSEL
lptim_ext_trig0
lptim_ext_trig1
lptim_ext_trig2
lptim_ext_trig3
lptim_ext_trig4
lptim_ext_trig5
RM0444 Rev 5
Description
LPTIM Input 1 from GPIO pin on mux input 0
LPTIM Input 2 from GPIO pin on mux input 0
LPTIM external trigger GPIO pin
LPTIM Output GPIO pin
Description
LPTIM APB clock domain
LPTIM kernel clock
Internal LPTIM input 1 connected to mux input 1
Internal LPTIM input 1 connected to mux input 2
Internal LPTIM input 1 connected to mux input 3
(1)
Internal LPTIM input 2
(1)
Internal LPTIM input 2
(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
COMP3_OUT
Low-power timer (LPTIM)
connected to mux input 1
connected to mux input 2
connected to mux input 3
833/1390
856