Am8251
Description
The Am8251/9551 is a programmable serial data communication interface that provides a Universal Synchronous/Asynchronous Receiver/Transmitter (USART) function_ It is normally used as a peripheral device for an associated processor, and may be programmed by the processor to operate in a variety of standard serial communication formats. The device accepts parallel data from the CPU, formats and serializes the information based on its current operating mode, and then transmits the data as a serial bit stream.
