Cascading content-addressable memories

Author

Moors, T. ; Cantoni, A.

Author_Institution

Univ. of Western Australia, Nedlands, WA, Australia

Volume

12

Issue

3

fYear

1992

fDate

6/1/1992 12:00:00 AM

Firstpage

56

Lastpage

66

Abstract

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.<>

Keywords

content-addressable storage; carry-lookahead logic; cascade; content-addressable memories; daisy-chaining; element cascade; labels; master-slave cascade; memory system; trie cascade; CADCAM; Computer aided manufacturing; Delay; Hardware; Joining processes; Memory management; Programmable logic arrays; Random access memory; Read only memory; Read-write memory;

fLanguage

English

Journal_Title

Micro, IEEE

Publisher

ieee

ISSN

0272-1732

Type

jour

DOI

10.1109/40.141603

Filename

141603