Compare circuit and method for content addressable memory (CAM) device
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United States of America Patent
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Jan 17, 2006
Grant Date -
N/A
app pub date -
Dec 16, 2002
filing date -
Dec 27, 2001
priority date (Note) -
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Abstract
A content addressable memory (CAM) device (100) may include a number of sub-blocks (102-8 to 102-15) that can generate CAM search results. In a 'search beyond' operation, sub-blocks (102-8 to 102-15) may be excluded from a search operation according to criteria, including a sub-block address and a soft-priority value. A CAM device may include a compare circuit (400) that may compare sub-block address values in a time division multiplexed fashion to establish priority from among multiple CAM sub-blocks.
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