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:
Aug. 10, 2004
Filed:
Jan. 08, 2003
Applicant:
Inventor:
Frank C. Wirtz, II, Corrales, NM (US);
Assignee:
Xilinx Inc., San Jose, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03K 1/9173 ;
U.S. Cl.
CPC ...
H03K 1/9173 ;
Abstract
A programmable integrated circuit is disclosed that includes a nonvolatile memory cell programmed to represent a configuration bit associated with a special purpose function. A volatile memory cell is associated with the nonvolatile memory cell. The integrated circuit includes a logic gate for logically combining states of the volatile and nonvolatile memory cells to selectively enable the special purpose function, even before the volatile memory cell is initialized. In this way, the predetermined function can be executed prior to a complete initialization of the integrated circuit.