INTERFACING TWO ANALOG INTERFACE CIRCUITS TO ONE TMS320C5X SERIAL PORT

In some cases, such as wireless communications applications, a system requires two communication channels but only one serial port is available. This document shows how to multiplex this port and how to interface two analog lines. There is a schematic, and an example of code is given. The analog interface circuits (AICs) chosen for this solution were purposely selected to address as many potential problems as possible.

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