Content based content addressable memory block enabling using search key
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United States of America Patent
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Jul 31, 2007
Grant Date -
N/A
app pub date -
Feb 6, 2004
filing date -
Feb 6, 2004
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A content addressable memory includes a plurality of CAM blocks, each including an array of CAM cells to store a predetermined range of data values, a parsing circuit having an input to receive the search key and having an output to provide a selected portion of the search key in response to a select signal, and a plurality of block select circuits, each configured to enable a corresponding CAM block if the selected portion of the search key falls within the predetermined range of data values for the corresponding CAM block.
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