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:
Jun. 15, 1999
Filed:
Jan. 25, 1993
Applicant:
Inventors:
Douglas Parks Sheppard, Southlake, TX (US);
William Lau, Dallas, TX (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
711118 ; 711128 ; 39575005 ; 39575006 ;
Abstract
A four-way cache data memory is provided, having a cache data RAM (30) and a tag RAM (28). The tag RAM (28) is enabled to access one of the tags therein. This tag is compared with the tag portion of the received memory address to determine if a tag is stored therein. If a true comparison results, a HIT is indicated and this is utilized to enable a portion of the cache data RAM (30). The data in the enabled portion is then output on the data bus.