29.6.2.2.1 Data Reception Mode

In receiver mode, the DATAm registers store the received data.

When a new data word is available in the DATAm register, the Receive Ready bit (RXRDYm) in the Interrupt Flag Status and Clear register (INTFLAG) is set. Reading the DATAm register will clear this bit.

A receive overrun condition occurs if a new data word becomes available before the previous data word has been read from the DATAm register. Then, the Receive Overrun bit in INTFLAG will be set (INTFLAG.RXORm). This interrupt can be cleared by writing a '1' to it.