Method and apparatus for content addressable memory test mode
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United States of America Patent
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Feb 24, 2004
Grant Date -
N/A
app pub date -
Dec 18, 2001
filing date -
Dec 18, 2001
priority date (Note) -
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Abstract
A content addressable memory (CAM) (100) can include a number of CAM entries (102-0 to 102-n). Match indications from CAM entries (102-0 to 102-n) and mismatch indications from complementing circuits (106-0 and 106-n) can be supplied to a switching circuit (108). Mismatch indications can indicate if an entry mismatches data when compared with a comparand (104). In one mode of operation, a switching circuit (108) can provide match indications on a number of switch outputs (SW0 to SWn). In another mode of operation, switching circuit (108) can provide mismatch indications on a number of switch outputs (SW0 to SWn).
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