UART
1.introduction to UART * Universal a Synchronous Receiver Transmitter * uses only two wires : TX to RX (each direction) * can be simple : half-duplex , or full duplex * data is transmitted as frames 2. UART used : * was one of the earliest serial protocols : ---> Serial(com) ports , RS-232 , modems * popularity of UART is however decreasing : ---> SPI and I2C between components . ---> Ethernet and USB betwween computers and peripheriques . 3. Forms of UART : There are actually two forms of UART hardware as follows: UART – Universal Asynchronous Receiver/Transmitter USART – Universal Synchronous/Asynchronous Receiver/Transmitter # The Sy...