Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/Silicon Labs/Series1/EFM32GG11B/EFM32GG11B420F2048GL112/EBI/WRTIMING2#0x0
Write Timing Register 2
Write Setup Time
Write Strobe Time
Write Hold Time
Half Cycle WEn Strobe Duration Enable
Write Buffer Disable
https://github.com/cmsis-svd/cmsis-svd-data