An ERROR event, in the form of a framing error, will be generated if a valid stop bit is not detected in a frame. Another ERROR event, in the form of a break condition, will be generated if the RXD line is held active low for longer than the length of a data frame. A framing error is always generated before a break condition occurs.
An ERROR event will not stop reception. If the error was a parity error, the received byte is still transferred into RAM along with any following bytes. If a framing error occurs (wrong stop bit), that byte will not be stored in RAM but the next incoming bytes will.