Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/Microchip Technology/ATSAML11E14A/OSCCTRL/DPLLPRESC#0x0
PRESC=DIV1
DPLL Prescaler
Output Clock Prescaler
0 (DIV1): DPLL output is divided by 1
1 (DIV2): DPLL output is divided by 2
2 (DIV4): DPLL output is divided by 4
https://github.com/cmsis-svd/cmsis-svd-data