UART_INTERFACE

Published:2009/7/5 22:19:00 Author:May | From:SeekIC

Uses TMS-6011 UART to convert parallel data into serial data and back again for Altair 8800 microprocessor. UART mates directlyto computer bus, because all outputs from UART are three-state buffers with separate enable lines provided for status bits and 8 bits of parallel output. Pin 22 is high when UART can accept another character for conversion. Pin 18 must be pulsed low to reset pin 19 so it can signal receipt of another character.Connections to pins 35-39 depend on I/0 devices used, as covered in article.-W. T. Walters, Build a Universal I/O Board, Kilobaud, Oct. 1977, p 102-108.



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