The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 10, 1990
Filed:
May. 12, 1989
Theodor Mulder, Pleasanton, CA (US);
Cecil H Kaplinsky, Palo Alto, CA (US);
Plus Logic, Inc., San Jose, CA (US);
Abstract
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.