Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/Microchip Technology/ATSAMV71J20/USBHS/USBHS_DEVDMA[4]/DEVDMANXTDSC#0x0
Device DMA Channel Next Descriptor Address Register (n = 1)
Next Descriptor Address
https://github.com/cmsis-svd/cmsis-svd-data