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Compare-Port Disbaling For Power Reduction

IP.com Disclosure Number: IPCOM000010388D
Original Publication Date: 2002-Nov-22
Included in the Prior Art Database: 2002-Nov-22

Publishing Venue

IBM

Abstract

Power Management becomes more and more important in modern high frequency designs as for portable equipment. Disabling complete units or arrays are a general scheme for reducing the power, but more granular concepts are necessary. Disclosed is a scheme to disable the compare function of individual entries in a Content-Addressable-Memory (CAM) after a match in order to reduce the overall power consumption while the arrays stays active. Two implementations are shown, one for minimum area and one for maximum performance.