Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/Silicon Labs/Series1/EFR32BG1B/EFR32BG1B132F128GM48/MSC/WRITECTRL#0x0
Write Control Register
Enable Write/Erase Controller
Abort Page Erase on Interrupt
https://github.com/cmsis-svd/cmsis-svd-data