Method And Apparatus To Recover From An Erroneous Logic State In An Electronic System

摘要

An electronic system includes circuitry to detect errors in logic state in the system and to initiate corrective action when one or more errors are detected. In some embodiments, redundant information is stored within a system that is associated with an operational state of the system. If the operational state of the system is subsequently corrupted as a result of an electrical or mechanical overstress condition, resulting errors may be detected by comparing or otherwise processing the stored operational state information and the redundant information.

主权项

1. An electronic system, comprising:
first digital storage circuitry to store a current operational state of the electronic system; operational logic to determine a next operational state of the electronic system based, at least in part, on an input signal; redundancy logic to generate redundant information associated with the next operational state determined by the operational logic; second digital storage circuitry to store the redundant information; and error checking logic to process the current operational state stored in the first digital storage circuitry and the redundant information stored in the second digital storage circuitry to determine whether an error in logic state exists in the electronic system, the error checking logic including correction logic to initiate corrective action for the electronic system if an error is detected by the error checking logic.