AmplifierCircuits

A UART is usually an individual (or part of an)  integrated circuit  used for  serial communications  over a computer or peripheral device  serial port . UARTs are now commonly included in microcontrollers. A dual UART, or  DUART , combines two UARTs into a single chip. An octal UART or  OCTART  combines eight UARTs into one package, an example being the NXP SCC2698. Many modern ICs now come with a UART that can also communicate synchronously; these devices are called USARTs  (universal synchronous/asynchronous receiver/transmitter). Programing UART in ARM Microcontrollers: you can find here:  www.gadgetronicx.com