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:
Apr. 26, 1988
Filed:
Jul. 14, 1986
David S Motersole, Austin, TX (US);
Jay A Hartvigsen, Tempe, AZ (US);
John Zolnowsky, Menlo Park, CA (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
A data processor is adapted for operation with a memory containing a plurality of items of operating information for the data processor. In addition a cache stores a selected number of all of the items of the operating information. When the cache provides an item of operating information, the memory is not requested to provide the item so that a user of the data processor cannot detect the request for the item. A disable circuit is provided to prevent the cache from providing the item when a signal external to the data processor is provided. Consequently, a user, with the external signal, can cause the data processor to make all of its requests for items of operating information to the memory where these requests can be detected.