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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Attempting to create power domains inside an atomic domain will generate an error in compliant tools. By using this site, you agree to the Terms of Use and Privacy Policy. Retrieved August 7, 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 modes 18011 behavior.

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Unified Power Format – Wikipedia

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, and Annex I, which provides examples of how to model power-management cells. P P P P P Views Read Edit View 181.

Elements of that annotation include: 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 101 behavior.

The new version provides the ability to set power attributes on ports that are managed inside the macro. 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.


Semantics for inferring additional elements in the design from the intent are provided in the standard. Retrieved July 6, Digital designers, IP Block providers, Physical Designers, and Verification engineers make use of this standard language to communicate their design iede and implementation with respect to the variable power of an electronic system. Hardware iCE Stratix Virtex.

Download IEEE Unified Power Format (UPF) standard free

The standard describes extensions to the Tool Command Language Tcl: Deprecated commands should be replaced as soon as possible in current designs as future support cannot be guaranteed. Retrieved from ” https: In general, retention strategies influence repeater, isolation and level-shifter strategies in turn. An important underlying concept is that of incrementality, to allow the design to be gradually elaborated over time as more implementation detail is added without forcing engineering teams to keep rewriting the command scripts.

Hard macros presented a problem for earlier versions of UPF ieee those macros upg their own power-management as switchable power domains were the only way to define power supplies to domains that could be powered up and down. Where can I find it?

As a language level, the command set has been structured to support successive refinement of power intent to reduce the ifee overhead on design teams. From Wikipedia, the free encyclopedia.

Unified Power Format

Specific support for individual aspects of IEEE are currently unclear. IEEE attempts to improve support for power modelling, implementation and verification throughout the lifecycle of an IC design. Bailey was also chairman of the IEEE group. Similarly, the structure for strategies is organized to allow high-level verification before implementation details are in place, and to avoid a decision later on from affecting the validity of that simulation.

Retrieved July 7, Files written to this standard annotate an electric design with the power and power control intent of that design.

Users can each download a single copy of IEEE by providing an email address at the Get website. A further addition is the concept of supply equivalence, in which supply nets can be treated as electrically or functionally upd to reduce the number of source and sink attributes that need to be defined.


IEEE 1801-2013 (UPF 2.1)

The way in which UPF commands override each other is expressed through precedence rules. Proposed upd 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.

Equivalence can be overridden in scripts to provide greater control over strategies. As a reaction to the Power Forward Initiative the group was proposed in July and met on September 13, Add support for bottom up and top down design add documentation of the support for wildcard and regular expression selection of design instances clarify the differences between ports and pins provide for convergence capability from both UPF and Common Power Format of the Silicon Integration Initiative Si2 The IEEE group was initially called the kpf Power Study Group”.

Instead, precedence rules are used to allow later, more detailed UPF commands to override generic commands that may have been inserted earlier to support behavioral logic simulation.

We use cookies to ensure that we give you the best experience on our website. This page was last edited on 18 Novemberat A number of features have been added to better support design reuse and commercial IP, including the ability to set constraints on usage. The current ypf is IEEE 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. Elements of that annotation include:.