Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/Texas Instruments/CC26x0/UART0/IMSC#0x0
Interrupt Mask Set/Clear
CTSMIM
RXIM
TXIM
RTIM
FEIM
PEIM
BEIM
OEIM
https://github.com/cmsis-svd/cmsis-svd-data