TCAM BIST with redundancy

Details TCAM BIST with redundancy TCAM BIST with redundancy

2005-03-28

2009-11-24

Britt, Cynthia (Department: 2117)

Error detection/correction and fault detection/recovery

Pulse or data error handling

Replacement of memory spare location, portion, or segment

C714S718000, C365S201000

Reexamination Certificate

active

07624313

ABSTRACT:
In an embodiment of the invention, a method of providing redundancy in a ternary content addressable memory (TCAM) includes: detecting a defective entry in a ternary content addressable memory (TCAM); marking the defective entry so that the defective entry is visible to a software; and avoiding in using the defective entry. For data that normally would have been written into the defective entry, the data is written into an entry that is subsequent to the defective entry. In another embodiment, the redundancy is provided in a CAM instead of a TCAM.

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