21.4.2.3 Receive Input Pin and PPS
The SENT Receive (SENTxRX) pin function is an independently remappable feature. To use the module in Receive mode, SENTxRX must be mapped to an available I/O pin using the appropriate RPINRx or RPORx register. If Short PWM Code support is required, a bidirectional mappable pin must be used in order to support the pulse output.