Entry location in a content addressable memory
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United States of America Patent
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Jun 5, 2007
Grant Date -
N/A
app pub date -
Feb 27, 2004
filing date -
Jun 11, 2003
priority date (Note) -
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Abstract
A method for performing a search in a content addressable memory ('CAM') device comprising comparing a search key with compound entries in a CAM array, wherein at least one of the compound entries includes (i) a ternary CAM word having a data word and a mask word, and (ii) a mask specifier that indicates the state of the mask word, and wherein the search key includes (i) a search word component, and (ii) a search mask component, and wherein the ternary CAM word is compared with the search word and the mask specifier is compared with the search word component; and generating a match signal associated with an compound entry that matches the search key.
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