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Abstract

A method and apparatus for determining a match address in an intra-row configurable CAM system. For one embodiment, the CAM system includes a CAM array and priority encoding circuitry. The CAM system includes a plurality of rows of CAM cells each segmented into a plurality of row segments having a plurality of CAM cells coupled to a corresponding match line segment. The priority encoding circuitry is coupled to the match line segments and has inputs to receive configuration information indicative of a width and depth configuration of the CAM array. The priority encoding circuitry is configured to generate a first match address in the CAM array corresponding to a row segment that stores data matching first comparand data in response to first configuration information, and is further configured to generate a second match address in the CAM array corresponding to a group of row segments that store data matching second comparand data in response to the second configuration information. The first and second configuration information correspond to different width and depth configurations.

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First Claim