Uthaya Thangara


For packet forwarding and packet classification in networks such as Internet high speed routers are necessary. Now-a-days CAMs are used for this purpose. The Content Addressable Memory (CAM) is a search engine that uses the content of the word to search in the memory. The CAM use up more power during every search operation. Hence, it is vital to reduce power consumption in CAMs.  search buss and  match buss in CAMs are the major sources of power consumption. Hence, in my project current control blocks are added to each  match buss to reduce power consumption. Also parity bits are used find the matched word and reduce the comparison with the miss-matched word. By this way the total power consumption in CAM is reduced to 0.009watts when compared with already existing schemes. CAMs can be used in Asynchronous Transfer Mode (ATM) switching network components as a translation table. CAM can act as an address translator in an ATM switch and perform the VPI/VCI translation very quickly. During the translation process, the CAM takes incoming VPI/VCI values in ATM cell headers and generates addresses that access data in an external RAM.


CAM, Current Saving Control, Parity bit, Match bus, Search bus, Tanner.

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