Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/Silicon Labs/Series1/EFR32MG1B/EFR32MG1B132F256GM32/ADC0/SINGLEFIFOCLEAR#0x0
Single FIFO Clear Register
Clear Single FIFO Content
https://github.com/cmsis-svd/cmsis-svd-data