Adopters Agreement and PWI Specification

Promoted by National Semiconductor and ARM, and made possible as a result of the contributions of key semiconductor and mobile phone manufacturers, the PWI specification is available immediately for adoption on a royalty-free and license-free basis. Companies interested in adopting the specification can do so by submitting an adopter's agreement (pdf 145KB Updated 12/15/03).

Become an Adopter

Why Adopt PWI?

PWI -

• Yields quadratic power savings by enabling deployment of advanced power management techniques, such as adaptive voltage scaling, dynamic voltage scaling, and back-biasing 
• Provides a royalty-free, license-free open standard interface that will allow for re-use of technology and the rapid deployment of power management ICs
• Makes optimal use of resources in the design, planning and production stages
• Expedites the adoption of components by handheld device manufacturers and allow for rapid, high-volume production

Adopters can use the PWI specification to develop PWI compliant products, and receive licenses to do so.

Procedure for Becoming an Adopter

1. Download and review the adopter's agreement (pdf 145KB)
2. Return two signed adopters agreements to:
   3689 Kifer Rd. M/S D2-740
   Santa Clara, CA 95051
3. Upon receipt of the agreement, an email confirmation will be sent. One hardcopy of the countersigned adopters agreement will also be returned to the contact as referenced in the application.

PWI 2.0 Specification

PWI 2.0 Specification  (pdf 1.3MB) provides the technical details to understand PWI Specification requirements and design PWI compatible products. Modifications to the PWI Specification are made by the PWI Promoters. Please check this site for any future updates to the PWI 2.0 specification.

Please send feedback on the specification content to: pwistandard@nsc.com

PWI 1.0 Specification

PWI Specification (pdf 274KB) provides the technical details to understand PWI Specification requirements and design PWI compatible products. Modifications to the PWI Specification are made by the PWI Promoters. Please check this site for any future updates to the PWI 1.0 specification.

Addendum for PWI Specification provides clarification and FAQ. (pdf 364KB)

Please send feedback on the specification content to: pwistandard@nsc.com

LEGAL DISCLAIMER
THIS SPECIFICATION IS PROVIDED "AS IS" AND WITHOUT ANY WARRANTY OF ANY KIND, EXPRESS OF IMPLIED. WITHOUT LIMITATION, THERE IS NO WARRANTY OF NON-INFRINGEMENT, NO WARRANTY OF MERCHANTABILITY, AND NO WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE. ALL WARRANTIES ARE EXPRESSLY DISCLAIMED.
USER ASSUMES THE FULL RISK OF USING THIS SPECIFICATION. IN NO EVENT SHALL THE PWI PROMOTERS AND ADOPTERS BE LIABLE FOR ANY ACTUAL, DIRECT, INDIRECT, PUNITIVE, OR CONSEQUENTIAL DAMAGES ARISING FROM SUCH USE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.

Intellectual Property Rights Notices
This page contains links to a reproduction of letters received by the PWI Promoters from patent owners advising the Promoters of intellectual property rights that may be pertinent to the PWI Specification or the implementation of a compliant portion thereof.  The PWI Adopters Agreement includes the exchange of licenses among the Promoters and other Adopters for patent claims that read on the PWI Specification.

Notice to all readers: The PWI Promoters and Adopters are providing this information as a courtesy  and without warranty or representation of any kind.  The PWI Promoters and Adopters are not be responsible for searching for patent claims, the license of which may be required by an implementation of compliant portions of PWI Specification or for conducting inquiries into the legal validity or scope of those patent claims that are brought to their attention.

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