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:
Jul. 06, 2010
Filed:
Dec. 26, 2007
Rashmi Sachan, Bangalore, IN;
Vasudha Gupta, Bangalore, IN;
Rashmi Sachan, Bangalore, IN;
Vasudha Gupta, Bangalore, IN;
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
A novel schematic for executing search, write and valid bit clear operations in one cycle in a CAM system that includes a plurality of CAM blocks is disclosed. In one embodiment, the plurality of CAM blocks are organized into at least one rectangular array having rows each having a plurality of CAM blocks, a group of CAM cells and associated read/write bit lines connecting the group of CAM cells to an addressed search circuit. The write operation depends on the output of the search operation, wherein the same data is written in to the CAM when the search operation results in a miss in a given cycle. Further, during the same cycle a valid bit clear operation is also performed. The resulting CAM cell provides a high speed three port operation.