22.5.6.4 Bus IDLE Timeout
Bus idle time-out can be used to define the bus free time (TBUF) between Stop and Start. Bus free time, depending on the baud rate, should be loaded to BITOPR (I2CXBITO[23:0]), and then the bus idle timer should be enabled by setting BITE (I2CxCON2[16]). The bus idle time-out starts when the host software initiates a Start condition. BITO (I2CxSTAT2[20]) will be set after the defined bus idle time. The BITIE (I2CxINTC[20]) bit can be enabled to generate a generic interrupt (I2CxIF).