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.

Date of Patent:
Oct. 21, 2014

Filed:

Mar. 15, 2013
Applicant:

Xilinx, Inc., San Jose, CA (US);

Inventors:

Robert I. Fu, Saratoga, CA (US);

Chi M. Nguyen, San Jose, CA (US);

James M. Simkins, Park City, UT (US);

Brian C. Gaide, Erie, CO (US);

Brian D. Philoksky, Longmont, CO (US);

Assignee:

Xilinx, Inc., San Jose, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K 19/173 (2006.01);
U.S. Cl.
CPC ...
H03K 19/173 (2013.01);
Abstract

Integrated circuits having groups of flip-flops with the option to ignore control signals are disclosed. For example, an integrated circuit comprises a first group and a second group of flip-flops that share a common reset signal, and a first selection unit for selecting a first output from among the common reset signal and a logical low signal to be sent to the second group of flop-flops. A selection of the logical low signal is for preventing the common reset signal from being applied to the flip-flops in the second group. The integrated circuit may also include a second selection unit for selecting a second output from among the common reset signal and a logical low signal to be sent to the first group of flop-flops. A selection of the logical low signal is for preventing the common reset signal from being applied to the flip-flops in the first group.


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