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:
Jun. 13, 2017

Filed:

Mar. 17, 2016
Applicant:

Lattice Semiconductor Corporation, Portland, OR (US);

Inventors:

Venkatesan Rajappan, Fremont, CA (US);

Sunil Sharma, Fremont, CA (US);

Mohan Tandyala, San Jose, CA (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 7/38 (2006.01); H03K 19/173 (2006.01); H03K 19/177 (2006.01); G06F 17/50 (2006.01);
U.S. Cl.
CPC ...
H03K 19/1774 (2013.01); G06F 17/5022 (2013.01);
Abstract

Techniques are provided to assign a set/reset signal of a user design to global set/reset (GSR) resources of a programmable logic device (PLD). By assigning a set/reset signal of the user design to the GSR resources during synthesis and prior to mapping, configurable resources consumed by the design may be reduced. In one example, a method includes receiving a user design for a programmable logic device (PLD) that comprises a plurality of configurable resources and global set/reset (GSR) resources. The method also includes identifying a plurality of set/reset signals of the user design. The method also includes determining, for each set/reset signal, a measurement of configurable resource savings associated with an assignment of the set/reset signal to the GSR resources. The method also includes assigning a selected one of the set/reset signals to the GSR resources based on the associated measurement. Additional methods and related systems are also provided.


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