Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/Silicon Labs/Series1/EFM32GG12B/EFM32GG12B810F1024GM64/LEUART1/STATUS#0x0
Status Register
Receiver Enable Status
Transmitter Enable Status
Block Incoming Data
TX Complete
TX Buffer Level
RX Data Valid
TX Idle
https://github.com/cmsis-svd/cmsis-svd-data