Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/Silicon Labs/Series1/EFM32GG12B/EFM32GG12B410F1024IL112/LCD/SEGD3L#0x0
Segment Data Low Register 3
COM3 Segment Data Low
https://github.com/cmsis-svd/cmsis-svd-data