The SC26C92 is a pin and function replacement for the SCC2692 and SCN2681 with added features and deeper FIFOs. It is a dual-channel asynchronous receiver/transmitter that interfaces directly with microprocessors and can be used in a polled or interrupt driven system. It provides multiple operating modes and data formats, and each channel can be programmed independently. Additionally, each receiver and transmitter can select its operating speed from 27 fixed baud rates, a 16X clock, or an external 1X or 16X clock.