Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/Microchip Technology/ATSAME51J19A/DMAC/CHANNEL[1]/CHCTRLB#0x0
CMD=NOACT
Channel n Control B
Software Command
0 (NOACT): No action
1 (SUSPEND): Channel suspend operation
2 (RESUME): Channel resume operation
https://github.com/cmsis-svd/cmsis-svd-data