FPGA implementation of content addressable memory based information detection system

Abstract

CAM (content-addressable memory) is a specialized type of high-speed memory that searches its entire contents in a single clock cycle. We are designing generalized CAM using Dual Port RAM (random access memory) structure which will perform match operation in addition to read and write operation .The design has fast search capabilities while consuming least system resources as possible. CAM provides performance advantage over other search algorithms as searching is based on content rather than address unlike RAM. The match time of our CAM structure is faster and resources are more effective. CAM is used in application where search time is very critical. content addressable memory compare input search data against stored data and return address of matched data. Thus overall function of CAM is to take search word and return matching memory location.