STMicroelectronics STM32WL5 Series Reference Manual page 453

RM0453
12.3.14 From timer (LPTIM3) to sub-GHz radio SPI NSS
Purpose
Low-power timer LPTIM3 can be used to generate a sub-GHz radio SPI NSS event.
Triggering signals
The output from low-power timer is on signal LPTIM3_OUT event.
The connection between timers and sub-GHz radio SPI NSS is provided in
SPI control register
Active power modes
Run, Sleep, LPRun, LPSleep
(PWR_SUBGHZSPICR).
RM0453 Rev 5
Peripherals interconnect matrix
PWR sub-GHz
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