Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/Silicon Labs/Series0/EZR32LG/EZR32LG330F256R69/USB/DIEP0_DMAADDR#0x0
Device IN Endpoint x+1 DMA Address Register
DMA Address
https://github.com/cmsis-svd/cmsis-svd-data