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Cascading content-addressable memories

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2 Author(s)
Moors, T. ; Univ. of Western Australia, Nedlands, WA, Australia ; Cantoni, A.

The various methods of connecting multiple content-addressable memory (CAM) devices to form a memory system of larger dimensions are surveyed. They include daisy-chaining CAMs to increase the number of elements and possibly using carry-lookahead logic to increase the cascade. To increase the data size, one can replicate the labels in distinct CAMs, use the data storage available in a primary CAM to index a secondary CAM/RAM (read-only memory), or reduce redundancy in labels. To increase the label size, one can use an element cascade with or without a shift register, a master-slave cascade, or a trie cascade. One of the methods examined for increasing the label size is a new trie cascade approach.<>

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Micro, IEEE  (Volume:12 ,  Issue: 3 )