1 What is the Universal Asynchronous Receiver Transmitter PLIB Driver?

The Universal Asynchronous Receiver Transmitter (UART) module is a serial I/O communications peripheral. It contains all the clock generators, shift registers and data buffers necessary to perform an input or output serial data transfer, independent of device program execution. The UART, also known as a Serial Communications Interface (SCI), can be configured as a full-duplex asynchronous system or one of several automated protocols. The Full Duplex mode is useful for communications with peripheral systems, such as wireless modems and USB to serial interface modules.