Unied Power Format
Unied Power Format (UPF) is the popular nameof the Institute of
Electrical and Electronics Engineers(IEEE) standard for specifying
power intent in power op-timization of electronic design
automation. The IEEE18012009 release of the standard was based on a
dona-tion from the Accellera organization.
1 HistoryAUnied Power Format technical committee was formedby
the Accellera organization, chaired by Stephen Baileyof Mentor
Graphics. As a reaction to the Power ForwardInitiative the group
was proposed in July 2006 and meton September 13, 2006.[1] It
submitted its rst draft inJanuary 2007, and a version 1.0 was
approved to be pub-lished on February 26, 2007.[2] Joe Daniels was
technicaleditor.[3]
Files written to this standard annotate an electric designwith
the power and power control intent of that design.Elements of that
annotation include:
Power Supplies: supply nets, supply sets, powerstates
Power Control: power switches Additional Protection: level
shifters and isolation Memory retention during times of limited
power:retention strategies and supply set power states
Renable descriptions of the potential power ap-plied to the
electronic system: power states, tran-sitions, a set of simstate,
pg_type and function at-tributes of nets, and the -update argument
to supportthe progressive renement of the power intent.
The standard describes extensions to the Tool CommandLanguage
(Tcl): commands and arguments for anotat-ing a design hierarchy
which has been read into a tool.Semantics for inferring additional
elements in the designfrom the intent are provided in the standard.
Digital de-signers, IP Block providers, Physical Designers, and
Ver-ication engineers make use of this standard language
tocommunicate their design intent and implementation withrespect to
the variable power of an electronic system.The Design Automation
Standards Committee (DASC)of the IEEE Standards Association
sponsored workinggroup 1801, with the project authorization
approved onMay 7, 2007.[4][5] Goals included:
clarify the semantics of the intent - this providesportability
of design intent across many vendorstools
Add support for incremental renement - Plat-inum source
(constraints) from IP vendors, Goldensource (conguration) from IP
integrators, and Sili-con source (implementation choices) from
those thatrealize the instantiations.
Add support for bottom up and top down design add documentation
of the support for wildcard andregular expression selection of
design instances
clarify the dierences between ports and pins provide for
convergence capability from both UPFand Common Power Format of the
Silicon Integra-tion Initiative (Si2)
The IEEE group was initially called the Low PowerStudy Group.
Proposed standards have the letter P infront of them (such as
P1801), which is removed and re-placed with a dash and year when
the standard is ratied.Acceleras UPF 1.0 was donated to the IEEE as
a basisof this standard in June 2006.[6]
After reviewing 14 drafts, on March 27, 2009, the Stan-dard for
Design and Verication of Low Power IntegratedCircuits was published
as IEEE Std 1801-2009.[7] It issometimes called UPF 2.0. Bailey was
also chairman ofthe IEEE group.[8] Another notable supporter of the
stan-dard was Synopsys.[9] A follow-on project planned to de-velop
a list of frequently asked questions (FAQ) about
thespecication.[5]
2 References[1] Richard Goering (September 18, 2006). Accellera
rolls
power plan. EE Times. Retrieved July 7, 2011.
[2] Documents from Group 'Unied Power Format Techni-cal
Committee'". Accellera public groups area. RetrievedJuly 7,
2011.
[3] Unied Power Format (UPF) Standard Version 1.0(PDF).
Accellera. Retrieved August 7, 2011.
[4] Sherry Hampton (May 9, 2007). P1801 - Standardfor Design and
Verication of Low Power IntegratedCircuits (PDF). IEEE Standards
Association StandardsBoard. Retrieved July 7, 2011.
1
2 3 EXTERNAL LINKS
[5] P1801 Low Power Study Group By Thread. Hypermailarchive.
Retrieved July 7, 2011.
[6] IEEE P1801 - Unied Power Format Standard. Accel-era
Organization Inc. Retrieved July 7, 2011.
[7] UPF: Standard for Design and Verication of Low
PowerIntegrated Circuits (March 27, 2009). 1801-2009- IEEE Standard
for Design and Verication of LowPower Integrated Circuits. IEEE
Standards Associa-tion. doi:10.1109/IEEESTD.2009.4809845. ISBN
978-0-7381-5930-0. Retrieved July 6, 2011.
[8] Nic Mokho (March 20, 2009). IEEE approves low-power design
spec. EE Times. Retrieved July 7, 2011.
[9] IEEE 1801-2009 Unied Power Format (UPF)".Synopsys. Retrieved
July 7, 2011.
1801-2009 IEEE Standard for Design and Ver-ication of Low Power
Integrated Circuits. 2009.doi:10.1109/IEEESTD.2009.4809845. ISBN
978-0-7381-5929-4.
1801-2013 IEEE Standard for Design and Ver-ication of Low-Power
Integrated Circuits. 2013.doi:10.1109/IEEESTD.2013.6521327. ISBN
978-0-7381-8281-0.
3 External links IEEE 1801-2013 - free download of the standard.
IEEE 1801a-2014 - free download of the standard.
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