dual universal asynchronous receiver/transmitter (DUART)
A Dual Universal Asynchronous Receiver/Transmitter(DUART), also known as a dual UART, is a universal, programmable receiver/ transmitter device for creating serial interfaces. Inmicrocomputer systems, there are only asynchronous (UART) or optional synchronous/asynchronous modes (USART). The DUART device has two asynchronous interfaces.