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. 07, 2006
Filed:
Jun. 18, 2001
Michael J. Miller, Saratoga, CA (US);
Mark Baumann, Campbell, CA (US);
Michael J. Miller, Saratoga, CA (US);
Mark Baumann, Campbell, CA (US);
Integrated Device Technology, Inc., San Jose, CA (US);
Abstract
A method for processing addresses having variable prefix lengths, including (1) applying an input address to a plurality of CAM blocks; (2) assigning different sets of CAM blocks to store prefixes of different lengths; (3) generating a hit signal and an index signal with each of the CAM blocks in response to the input address; (4) programming a plurality of routing values; (5) routing the hit signals to a priority encoder in an order determined by the routing values; (6) generating an output hit signal with the priority encoder in response to the hit signals; (7) selecting one of the routing values as an index routing value in response to the output hit signal; and (8) routing one of the index signals as an output index value in response to the index routing value. Circuitry for implementing the method is also provided.