Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/Microchip Technology/ATSAME51J19A/DMAC/CHANNEL[1]/CHPRILVL#0x0
PRILVL=LVL0
Channel n Priority Level
Channel Priority Level
0 (LVL0): Channel Priority Level 0 (Lowest Level)
1 (LVL1): Channel Priority Level 1
2 (LVL2): Channel Priority Level 2
3 (LVL3): Channel Priority Level 3 (Highest Level)
https://github.com/cmsis-svd/cmsis-svd-data