Static information storage and retrieval – Associative memories
Reexamination Certificate
2006-12-08
2008-12-30
Phan, Trong (Department: 2827)
Static information storage and retrieval
Associative memories
C365S049160, C365S049170, C365S049180
Reexamination Certificate
active
07471536
ABSTRACT:
A novel match/mismatch emulation scheme for an addressed location in a CAM system that includes a plurality of CAM blocks. The plurality of CAM blocks are organized into at least one rectangular array having rows each having a plurality of CAM blocks, a group of CAM cells and associated read/write bit lines connecting the group of CAM cells to an addressed search circuit. During debug mode, where the individual array cells do not participate in search, all the cells in the debug column behave the same way to emulate a match/mismatch on all words. The circuit provides a control input to include address evaluation of a debug cell in a row. The circuit also provides simultaneous switching noise analysis on an evaluating row. The resulting CAM cell provides a circuit to test individual rows for defects and noise analysis.
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Krishnan Rengarajan S
Kuliyampattil Nisha Padattil
Sachan Rashmi
Sheffield Bryan D
Brady W. James
Phan Trong
Stewart Alan K.
Telecky , Jr. Frederick J.
Texas Instruments Incorporated
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