Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/Texas Instruments/CC26x0/AON_EVENT/RTCSEL#0x0
RTC Capture Event Selector For AON_RTC
This register contains a pointer to select an AON event for RTC capture. Please refer to AON_RTC:CH1CAPT
RTC_CH1_CAPT_EV
https://github.com/cmsis-svd/cmsis-svd-data