Ram-based associative content-addressable memory device, method

Details Ram-based associative content-addressable memory device, method Ram-based associative content-addressable memory device, method

1997-08-15

2000-08-01

Olms, Douglas W.

Multiplex communications

Pathfinding or routing

Switching a message which includes an address header

711108, H04L 1256

Patent

active

060977248

ABSTRACT:
A memory device, a method of content-addressing a memory device to validate an incoming pattern and an Asynchronous Transfer Mode (ATM) communication switching system incorporating the device or the method. In one embodiment, the device includes: (1) a validation random access memory (RAM) having a plurality of addressable locations therein, the addressable locations containing validation indicators corresponding to patterns that have been programed into the validation RAM and (2) circuitry, coupled to the validation RAM, that provides an incoming pattern to the validation RAM and retrieves a corresponding validation indicator from the validation RAM, the validation indicator indicating whether the incoming pattern had been programed into the validation RAM. The memory device thereby functions as a content-addressable memory (CAM).

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