Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/Silicon Labs/Series1/EFM32TG11B/EFM32TG11B540F64IQ80/ADC0/SCANFIFOCLEAR#0x0
Scan FIFO Clear Register
Clear Scan FIFO Content
https://github.com/cmsis-svd/cmsis-svd-data