Plus Logic, Inc.

Theodor Mulder

Cecil H Kaplinsky

A configuration control circuit in an integrated circuit device, such as a programmable logic device, having a programmable memory for storing configuration bits and one or more shift registers which are loadable from the memory. The memory is an array of nonvolatile memory cells that can be user programmed with data corresponding to a desired device architecture. The shift registers are loaded with this data upon power up or a reset. The registers in combination with other circuit gates control the operation of the device such that a particular architecture is implemented. The various configurations can be tested without altering the contents of the memory by loading the shift register externally.

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Pleasanton, CA, United States of America

Theodor Mulder