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:
May. 27, 2008
Filed:
Dec. 27, 2004
Michael L. Wright, Raleigh, NC (US);
Darren Kerr, Palo Alto, CA (US);
Kenneth Michael Key, Raleigh, NC (US);
William E. Jennings, Cary, NC (US);
Michael L. Wright, Raleigh, NC (US);
Darren Kerr, Palo Alto, CA (US);
Kenneth Michael Key, Raleigh, NC (US);
William E. Jennings, Cary, NC (US);
Cisco Technology, Inc., San Jose, CA (US);
Abstract
A processor complex architecture facilitates accurate passing of transient data among processor complex stages of a pipelined processing engine. The processor complex comprises a central processing unit (CPU) coupled to an instruction memory and a pair of context data memory structures via a memory manager circuit. The context memories store transient 'context' data for processing by the CPU in accordance with instructions stored in the instruction memory. The architecture further comprises data mover circuitry that cooperates with the context memories and memory manager to provide a technique for efficiently passing data among the stages in a manner that maintains data coherency in the processing engine. An aspect of the architecture is the ability of the CPU to operate on the transient data substantially simultaneously with the passing of that data by the data mover.