The Unified Power Format (UPF) , officially known as IEEE Standard , was approved by the IEEE in December and will be. (Official IEEE P home page is here). Unified Power Format (UPF) is the popular name of the Institute of Electrical and Electronics Engineers (IEEE) standard. You learn about IEEE power supply networks, ground ports and nets, versions of UPF Debug design scenarios Analyze non-standard IEEE coding.

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Accellera public groups area. Bailey was also chairman of the IEEE group.

Specific support for individual aspects of IEEE are currently unclear. The current release is IEEE Equivalence can be overridden in scripts to provide greater control over strategies.

Retrieved July 6, As a reaction to the Power Forward Initiative the group was proposed in July and met on September 13, Where can I find it? Retrieved from ” https: This strategy can be overridden for a named port on that domain, which in turn may be overridden by a command that specifies individual bits within a multibit port. Several informative annexes have been added to the standards document, such as Annex E, which provides a low-power design methodology based on the standard, ipf Annex I, which provides examples of how to model power-management cells.

Users can each download a single copy of IEEE by providing an email address at the Get website. The new version provides the ability to set power attributes on ports that are managed inside the macro.


IEEE 1801-2013 (UPF 2.1)

Hardware iCE Stratix Virtex. An important underlying concept is that of incrementality, to allow the design to be gradually elaborated over time as more implementation detail is added 18801 forcing engineering teams to keep rewriting the command scripts. Atomic power domains provide greater control for IP providers by preventing users from subdividing a domain so that the different parts are power-gated separately if that is not explicitly supported by the IP.

Views Read Edit View history. In general, retention strategies influence repeater, isolation and level-shifter strategies in turn.

Unified Power Format

Elements of that annotation include: Changes in IEEE took advantage of industrial experience and a wider user base to perform a cleanup of the original standard, as well as adding new commands to support incremental specification of power iee and behavior.

The standard describes extensions to the Tool Command Language Keee Instead, precedence rules are used to allow later, more detailed UPF commands iee override generic commands that may have been inserted earlier to support behavioral logic simulation.

By using this site, you agree to the Terms of Use and Privacy Policy. A further addition is the concept of supply equivalence, in which supply nets can be treated as electrically or functionally equivalent to reduce the number of source and sink attributes that need to be defined.

Guide to changes in IEEE (UPF )

Retrieved August 7, Proposed standards have the letter “P” in front of them such as Pwhich is removed and replaced with a dash and year when the standard is ratified. Legacy commands are fine for existing modules but are not recommended for new design modules. Deprecated commands should be replaced as soon as 18001 in current designs as future support cannot be guaranteed.


A number 8101 features have been added to better support design reuse and commercial IP, including the ability to set constraints on usage. From Wikipedia, the free encyclopedia. We use cookies to ensure that we give you the best experience on our website.

Unified Power Format – Wikipedia

If you continue to use this site we will assume that you are happy with it. This page was last edited on 18 Novemberat The way in which UPF commands override each other is expressed through precedence rules. P P P P P The emphasis of the latest version of the standard focuses on usability in industrial designs, restricting some of the freedom of the command set but providing better guidance for design teams trying to design ICs with complex power modes and behavior.

Semantics for inferring additional elements in the design from the intent are provided in the standard. Files written to this standard annotate an electric design with the power and power control intent of that design.