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R65C51 - ASYNCHRONOUS COMMUNICATIONS INTERFACE ADAPTER

Description

The Rockwell CMOS R65C51 Asynchronous Communications Interface Adapter (ACIA) provides an easily implemented, program controlled interface between 8-bit microprocessor-based systems and serial communication data sets and modems.

The ACIA has an internal baud rate generator.

Features

  • Low power CMOS N-well silicon gate technology Direct replacement for NMOS R6551 ACIA Full duplex operation with buffered receiver and transmitter Data set/modem control functions Internal baud rate generator rates (50 to 19,200) . with 15 programmable bau Program-selectable rate internally or’externally controlled receive . Programmable word lengths, number of stop bits, and pant bit generation and detection Programmable Program reset Program-selectable serial echo mode Two chip selects 1.

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Datasheet Details

Part number R65C51
Manufacturer Unknown Manufacturer
File Size 1.52 MB
Description ASYNCHRONOUS COMMUNICATIONS INTERFACE ADAPTER
Datasheet download datasheet R65C51 Datasheet

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    R65C51 ASYNCHRONOUS COMMUNICATIONS PRELiMlNARY DESCRIPTION The Rockwell CMOS R65C51 Asynchronous Communications Interface Adapter (ACIA) provides an easily implemented, program controlled interface between 8-bit microprocessor-based systems and serial communication data sets and modems. The ACIA has an internal baud rate generator. This feature eliminates the need for multiple component support circuits, a crystal being the only other part required. The Transmitter baud rate can be selected under program control to be either 1 of 15 different rates from 50 to 19,200 baud, or at l/16 times an external clock rate. The Receiver baud rate may be selected under program control to be either the Transmitter rate, or at l/16 times the external clock rate.
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