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XR88C92 / XR88C192
Data Sheet Dual Universal Asynchronous Receiver and Transmitter
General Description
The XR88C92 and XR88C192 are Dual Universal Asynchronous Receivers and Transmitters (DUART) with an 8 byte (XR88C92) or 16 byte (XR88C192) transmit and receive FIFO. The XR88C92 and XR88C192 are each pin and functional replacements for the SC26C92, and are improved versions of the Philips SCC2692 UART with faster data access and other additional features. The operating speed of the receiver and transmitter can be selected independently from a table of eighteen fixed baud rates, a 16X clock derived from a programmable counter / timer, or an external 1X or 16X clock. The baud rate generator and counter / timer can operate directly from a crystal or from an external clock input.