Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/stm32/stm32wb0/STM32WB07/RADIO/DEMOD_IQ2_DIG_TST#0x0
DEMOD_IQ2_DIG_TST register
Defines the sampling time, when extended configuration is enabled:
Defines the trigger/anchor point of the IQ sampling, when extended configuration is enabled:
https://github.com/modm-io/cmsis-svd-stm32