SYSTEM AND METHOD OF REDUCING POWER USAGE OF A CONTENT ADDRESSABLE MEMORY

摘要

A system is disclosed that includes a content addressable memory (102) and an input register (124) coupled to the content addressable memory (102). The input register (124) can store a data word and the content addressable memory (102) determines if the data word exists in the content addressable memory. The system also includes a power control circuit (130) coupled to the content addressable memory (102) for selectively providing power to at least a portion of the content addressable memory (102). The system includes power control logic (122) coupled to the power control circuit (130) to selectively reduce power to the at least a portion of the content addressable memory (102) when valid data does not exist in the at least a portion of the content addressable memory (102).