Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/Silicon Labs/Series0/EZR32HG/EZR32HG220F64R55/ADC0/CMD#0x0
Command Register
Single Conversion Start
Single Conversion Stop
Scan Sequence Start
Scan Sequence Stop
https://github.com/cmsis-svd/cmsis-svd-data