Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/Microchip Technology/ATSAME70N20B/XDMAC/XDMAC_CHID[6]/CUBC#0x0
Channel Microblock Control Register
Channel x Microblock Length
https://github.com/cmsis-svd/cmsis-svd-data