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:
Jul. 17, 2018

Filed:

Mar. 17, 2016
Applicant:

Lattice Semiconductor Corporation, Portland, OR (US);

Inventors:

Sunil Sharma, Fremont, CA (US);

Venkatesan Rajappan, Fremont, CA (US);

Mohan Tandyala, San Jose, CA (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 17/50 (2006.01); H03K 19/173 (2006.01); H03K 19/177 (2006.01);
U.S. Cl.
CPC ...
H03K 19/1737 (2013.01); G06F 17/505 (2013.01); G06F 17/5054 (2013.01); H03K 19/17736 (2013.01);
Abstract

Various techniques are provided to efficiently implement user designs in programmable logic devices (PLDs). In one example, a method includes identifying a multiplexer in the design, identifying one or more irrelevant inputs for the multiplexer by, at least in part, decomposing the select logic into one or more select line binary decision diagrams corresponding to the one or more select lines, and generating a reduced multiplexer by eliminating the one or more irrelevant inputs from the multiplexer. The reduced multiplexer may be used to generate configuration data to configure physical components of the PLD, and the configuration data may be used to program the PLD to conform to the timing constraints of the design and/or PLD.


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