Content addressable memory with search line test circuitry
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United States of America Patent
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Aug 16, 2016
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N/A
app pub date -
Aug 25, 2015
filing date -
Aug 25, 2015
priority date (Note) -
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Abstract
A content addressable memory (CAM) and methods of operating a CAM are provided. The method for operating a CAM includes: during a first mode, performing a search function in a CAM bit array, the search result output at a match port of the CAM bit array; and during a second mode, columnwise reading data in the CAM bit array, the read column data output at the match data port of the CAM bit array. The method may include writing the CAM bit array with a predetermined data pattern. The method may further include providing an indication of pass/fail based upon comparing the read column data with expected data.
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