57.7.9.1 Mode of Operation

To configure the USART to act as a LON node, the USART_MODE field of the USART Mode register (FLEX_US_MR) must be set to 0x9.

To avoid unpredictable behavior, any change of the LON node configuration must be preceded by a software reset of the transmitter and the receiver (except the initial node configuration after a hardware reset) and followed by a transmitter/receiver enable. See Receiver and Transmitter Control.