Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/Microchip Technology/ATSAME51J19A/TC0/COUNT32/WAVE#0x0
WAVEGEN=NFRQ
Waveform Generation Control
Waveform Generation Mode
0 (NFRQ): Normal frequency
1 (MFRQ): Match frequency
2 (NPWM): Normal PWM
3 (MPWM): Match PWM
https://github.com/cmsis-svd/cmsis-svd-data