35.12.2 Receive Checksum Method

1. Clear the UxRXCHK register.
2. Set the C0EN bit.
3. Receive all bytes in the transaction including the checksum byte.
4. Set MSb of UxRXCHK if 7-bit mode is selected.
5. Add ‘1’ to UxRXCHK.
6. If the result is ‘0’, the checksum passes, otherwise it fails.

The CERIF Checksum Interrupt flag is not active in any mode other than LIN.