Signal multiplexingRegisteraccessPeripheralbridgeModule signalsUARTFigure 3-29. UART configurationTable 3-44. Reference links to related informationTopic Related module ReferenceFull description UART0 UARTSystem memory map System memory mapClocking Clock DistributionPower management Power managementSignal Multiplexing Port control Signal Multiplexing3.9.3.1 UART0 overviewThe UART0 module supports basic UART with DMA interface function, x4 to x32oversampling of baud-rate.This module supports LIN slave operation.The module can remain functional in VLPS mode provided the clock it is using remainsenabled.ISO7816 protocol is intended to be handled in software for this product. To support smartcard reading, TxD pin can be configured as pseudo open drain for 1-wire half-duplex likeISO7816 communication via the SIM_SOPT5[UART0ODE] bit.3.9.3.2 UART1 and UART2 OverviewThis device contains two basic universal asynchronous receiver/transmitter (UART)modules with DMA function support. Generally, these modules are used in RS-232,RS-485, and other communications. This module supports LIN Slave operation.Communication interfacesKL04 Sub-Family Reference Manual, Rev. 3.1, November 201286 Freescale Semiconductor, Inc.