Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/Microchip Technology/ATSAME51J19A/DSU/CFG#0x0
DCCDMALEVEL=EMPTY
Configuration
Latency Quality Of Service
DMA Trigger Level
0 (EMPTY): Trigger rises when DCC is empty
1 (FULL): Trigger rises when DCC is full
Trace Control
https://github.com/cmsis-svd/cmsis-svd-data