Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/Silicon Labs/Series1/EFR32ZG13P/EFR32ZG13P231F512GM64/ADC0/SCANFIFOCLEAR#0x0
Scan FIFO Clear Register
Clear Scan FIFO Content
https://github.com/cmsis-svd/cmsis-svd-data