Configurable electrical circuit having configurable logic elements and configurable interconnects

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United States Patent

4870302

Link to this page

http://www.wikipatents.com/4870302.html

Inventor(s)

Freeman; Ross H. (San Jose, CA)

Abstract

A configurable logic array comprises a plurality of configurable logic elements variably interconnected in response to control signals to perform a selected logic function. Each configurable logic element in the array is in itself capable of performing any one of a plurality of logic functions depending upon the control information placed in the configurable logic element. Each configurable logic element can have its function varied even after it is installed in a system by changing the control information placed in that element. Structure is provided for storing control information and providing access to the stored control information to allow each configurable logic element to be properly configured prior to the initiation of operation of the system of which the array is a part. Novel interconnection structures are provided to facilitate the configuring of each logic element.

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