Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/Microchip Technology/ATSAMV71J20/USBHS/TSTA1#0x0
General Test A1 Register
Counter A
Load CounterA
Counter B
Load CounterB
SOF Counter Max
Load SOF Counter
https://github.com/cmsis-svd/cmsis-svd-data