Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/Microchip Technology/ATSAML11E16A/SERCOM0/I2CS/ADDR#0x0
I2CS Address
General Call Address Enable
Address Value
Ten Bit Addressing Enable
Address Mask
https://github.com/cmsis-svd/cmsis-svd-data