Match and match address signal prioritization in a content addre

Details Match and match address signal prioritization in a content addre Match and match address signal prioritization in a content addre

1997-08-29

2000-05-30

Williams, Howard L.

Coded data generation or conversion

Digital code to digital code converters

711108, H03M 700

Patent

active

060695730

ABSTRACT:
A method and apparatus for prioritizing encoded MATCH signal and MATCH ADDRESS signals for a content addressable memory ("CAM") array is disclosed. Each CAM core has an output encoder for providing a MATCH signal and, if a MATCH is determined, a MATCH.sub.-- ADDRESS signal indicative of locations in the CAM of the data of interest. The priority encoder output signals are encoded to provide a final MATCH signal and a final MATCH.sub.-- ADDRESS to only the highest priority MATCH.sub.-- ADDRESS from the CAM core having the data, solving the problem of determining which of a plurality of CAM matches to select.

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"Compression Of Individual Sequences Via Variable-Rate Coding", By Jacob Ziv and Abraham Lempel, IEEE Transactions on Information Theory, vol. IT-24, No. 5, Sep. 1978.

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