Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/Silicon Labs/EFR32MG24A120F1536GM48/EUSART1_S/TRIGCTRL#0x0
No Description
Receive Trigger Enable
Transmit Trigger Enable
AUTOTX Trigger Enable
https://github.com/cmsis-svd/cmsis-svd-data