DATA DISTRIBUTION IN CONTENT ADDRESSABLE MEMORY
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United States of America Patent
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Issued Date -
Nov 25, 2004
app pub date -
May 19, 2003
filing date -
May 19, 2003
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A data distribution system suitable for use in a content addressable memory (CAM) search engine have a number of CAM units. A set of bank multiplexers each includes a set of multiplexing constructs that are controllable via respective bank control buses. Input data for storage in the CAM units as file data or for searching against pre-stored file data are provided to the bank multiplexers and the bank control buses direct the multiplexing constructs to selectively pass sub-portions of the input data onward to the CAM units thus distributing some or all of the input data to the CAM units, with the input data configurably ordered as desired, configurably duplicated as desired, or both. Optionally, a configuration register can hold multiple sets of programming data for loading onto the bank control buses to direct the multiplexing constructs, thus facilitating different distributions of the input data to the CAM units.
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