Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/Silicon Labs/Series1/EFM32GG11B/EFM32GG11B420F2048IL120/ADC1/SCANFIFOCOUNT#0x0
Scan FIFO Count Register
Scan Data Count
https://github.com/cmsis-svd/cmsis-svd-data