Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/Silicon Labs/Series1/EFM32GG12B/EFM32GG12B810F1024IL112/USB/DIEP2_DMAADDR#0x0
Device IN Endpoint x+1 DMA Address Register
https://github.com/cmsis-svd/cmsis-svd-data