57.7.8.1 Modes of Operation
The USART can act either as a LIN host node or as a LIN client node.
The node configuration is chosen by setting the USART_MODE field in the USART Mode register (FLEX_US_MR):
- LIN host node (USART_MODE = 0xA)
- LIN client node (USART_MODE = 0xB)
In order to avoid unpredictable behavior, any change of the LIN node configuration must be followed by a software reset of the transmitter and of the receiver (except the initial node configuration after a hardware reset). See Receiver and Transmitter Control.