Abstract

A technique is described in which N bits of data are encoded on one physical I/O pin, transforming it into N virtual pins. A major component of this technique is to encode N bits of binary data in 2/sup N/ discrete voltage levels. These N voltage-encoded bits can then be simultaneously transmitted across one chip's output to another chip's input, where they are decoded into N binary level bits. The entire process requires the development of circuits to encode, transmit, and decode the nonbinary discrete voltage signals. New voltage regulation and reference circuits are also required. Such circuits have been created and currently being tested for correct functionality and performance. >

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