RM0453 Rev 1 955/1461
RM0453 Low-power timer (LPTIM)
981
28.4.2 LPTIM pins and internal signals
The following tables provide the list of LPTIM pins and internal signals, respectively.
28.4.3 LPTIM trigger mapping
The LPTIM external trigger connections are detailed hereafter:
Table 190. LPTIM input/output pins
Names Signal type Description
LPTIM_IN1 Digital input LPTIM Input 1 from GPIO pin
LPTIM_IN2 Digital input LPTIM Input 2 from GPIO pin
LPTIM_ETR Digital input LPTIM external trigger GPIO pin
LPTIM_OUT Digital output LPTIM Output GPIO pin
Table 191. LPTIM internal signals
Names Signal type Description
lptim_pclk Digital input LPTIM APB clock domain
lptim_ker_ck Digital input LPTIM kernel clock
lptim_in1 Digital input Internal LPTIM input 1
lptim_in2 Digital input Internal LPTIM input 2
(1)
1. Only applies to LPTIM1
lptim_ext_trigx Digital input LPTIM external trigger input x
lptim_out Digital output LPTIM counter output
lptim_it Digital output LPTIM global interrupt
lptim_wakeup Digital output LPTIM wakeup event
Table 192. LPTIM1 external trigger connection
TRIGSEL External trigger
lptim_ext_trig0 GPIO pin as LPTIM1_ETR alternate function
lptim_ext_trig1 RTC ALARM A
lptim_ext_trig2 RTC ALARM B
lptim_ext_trig3 TAMP1 input detection
lptim_ext_trig4 TAMP2 input detection
lptim_ext_trig5 TAMP3 input detection
lptim_ext_trig6 COMP1_OUT
lptim_ext_trig7 COMP2_OUT
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