05440715 is referenced by 119 patents and cites 7 patents.

Apparatus and a method for easily expanding the effective width of the data words of a CAM without significantly increasing the basic width of the data storage registers or comparand register. A plurality of comparison blocks each include a register for data words having a predetermined width. Each data word includes a start bit, which indicates that a data word is the first data word of a much larger data word (or data line), and a chain bit, which indicates that a match has occurred between part of a comparand and the data word stored in the register. A maskable comparator provides a match output signal. The start bit is initially loaded into the chain-bit register for a data word. A latch is provided for storing the value of the chain bit from a preceding register into the chain-bit register of a following register. A priority encoder receives the match output signals from each of the comparators of the comparison blocks to identify the highest-priority comparison block, and the corresponding data line.

Title
Method and apparatus for expanding the width of a content addressable memory using a continuation bit
Application Number
543330
Publication Number
5440715
Application Date
April 6, 1993
Publication Date
August 8, 1995
Inventor
David C Wyland
San Jose
CA, US
Agent
Patrick T King
Assignee
Advanced Micro Devices
CA, US
IPC
G06F 12/00
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