20.5.4.3.7 Client Mode Bus Collision

On a read request from the host, the client begins shifting data out on the SDAx line. If a bus collision is detected and the SBCDE bit (I2CxCON1[18]) is set, then the I2CxBCIF bit will be set. After detecting the bus collision, the client goes into Idle mode and waits to be addressed again. User software can use the I2CxBCIF bit or vectors to the bus collision interrupt to handle a client bus collision.