Serial digital data link with error detection

摘要

The serial digital data link monitor circuitry operates on a single wire multiplex connection linking intercommunicating signal processing devices. The level of transmitted and/or received data (D) is compared with predetermined reference levels (GR1-GR4) to test whether the signal lies within or outside of the signal limits for data values 0 and 1. The limit values of th signal are less than or equal to one half of the signal excursion between 0 and 1.