The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 13, 1996
Filed:
Dec. 05, 1994
Vincent B Deems, Austin, TX (US);
Gregory A Racino, Austin, TX (US);
James R Feddeler, Austin, TX (US);
Victor E Shiff, Waterbury, CT (US);
Motorola Inc., Schaumburg, IL (US);
Abstract
A method and apparatus for preventing a data processing system (10) from entering a non-recoverable state. In one form, the present invention uses a pin (40) to indicate whether or not the execution of a non-recoverable instruction is legal. If the pin indicates that the execution of the instruction is legal, then the instruction is executed and the data processing system (10) is placed into a state that requires an external stimulus in order to recover. If the pin indicates that the execution of the instruction is illegal, then the instruction is not permitted to place the data processing system (10) into a state that requires an external stimulus in order to recover. Instead, an internal recovery mechanism is provided which returns the data processing system (10) to normal processing.