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:
Feb. 26, 1980
Filed:
Dec. 22, 1977
Applicant:
Inventors:
Thomas F Joyce, Burlington, MA (US);
William Panepinto, Jr, Tewksbury, MA (US);
Assignee:
Honeywell Information Systems Inc., Waltham, MA (US);
Primary Examiner:
Int. Cl.
CPC ...
G06F / ; G06F / ;
U.S. Cl.
CPC ...
364200 ;
Abstract
A Data Processing System comprises a central processor unit, a main memory and a cache, all coupled in common to a system bus. The central processor unit is also separately coupled to the cache. Apparatus in cache is responsive to signals received from the central processor unit to initiate a test and verification mode of operation in cache. This mode enables the cache to exercise various logic areas of cache and to indicate to the central processor unit hardware faults.