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:
Jan. 12, 1999
Filed:
Apr. 15, 1997
Applicant:
Inventors:
Christopher M Herring, Longmont, CO (US);
Forrest E Norrod, Boulder, CO (US);
Assignee:
National Semiconductor Corporation, Santa Clara, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
711100 ; 711117 ;
Abstract
A highly integrated central processing unit employs a single external physical bus having first and second protocols to support an L2 cache and a general purpose peripheral interface respectively, to avoid bond-out of the CPU bus to the external world and to steal unused bandwidth for L2 cache accesses while maintaining a standard peripheral bus interface.