Multi-format data display

摘要

A display controller drives a nine digit, seven segment display in accordance with desired display formats for preselected lengths of time. The controller accepts control commands and data by means of a serial three wire asynchronous link. The display controller includes the capability for receiving binary data and converting it to binary coded decimal data for subsequent display and further includes the capability for scaling data as well as performing self tests to insure that the display is functioning correctly following a power outage.