Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/Silicon Labs/Series0/EZR32LG/EZR32LG330F64R63/USB/IF#0x0
Interrupt Flag Register
VREGO Sense High Interrupt Flag
VREGO Sense Low Interrupt Flag
https://github.com/cmsis-svd/cmsis-svd-data