Altera PowerPlay Early Power Estimator Manuel d'utilisateur

PowerPlay Early Power Estimator UserGuideSubscribeSend FeedbackUG-010702015.01.20101 Innovation DriveSan Jose, CA 95134www.altera.com

• Airflow• Custom θSA or Custom θJA• Board thermal modelThe ambient or junction temperature, heat sink, airflow, Custom θSA or Custom θJA, and board t

PowerPlay Early Power Estimator Worksheets32015.01.20UG-01070SubscribeSend FeedbackThis chapter provides information about each worksheet of the Power

Figure 3-1: Main Worksheet of the PowerPlay EPE SpreadsheetInput Parameter InformationThermal Power InformationThermal AnalysisInformationPower Tree D

Input Parameter DescriptionPackageSelect the package that is used.Larger packages provide a larger cooling surface and more contactpoints to the circu

Input Parameter DescriptionJunction Temp, TJ (°C)Enter the junction temperature of the device. This field is onlyavailable if you turn on the User Ent

Input Parameter DescriptionCustom θJA (°C/W)Enter the junction-to-ambient thermal resistance between thedevice and ambient air (in °C/W). This field i

Figure 3-2: Thermal Power Section in the Main WorksheetTable 3-2: Thermal Power Section InformationColumn Heading DescriptionLogic This value shows th

Column Heading DescriptionXCVRThis shows the thermal power consumed by transceiver hardware. Thisincludes the standby power consumed by transceivers.T

Figure 3-3: Power Tree Design Section in the Main WorksheetSelect a valid configuration from the Power Rail Configuration dropdown. When the Input Par

• Enpirion Worksheet on page 3-40Thermal AnalysisThe following figure shows the Thermal Analysis section in the Main worksheet, including the junction

ContentsPowerPlay Early Power Estimator Overview...1-1Release Information...

temperature is the estimated operating junction temperature based on your device and thermalconditions.You can consider the device as a heat source an

Figure 3-8: Total PowerUsing a Heat SinkWhen you use a heat sink, the major paths of power dissipation are from the device through the case,thermal in

Figure 3-10: Thermal Model for the PowerPlay EPE Spreadsheet with a Heat SinkTJTAPower (P1)Heat SourcePower (P2)TJTCTSTAθJA BOTTOMθJCθCSθSAIf you want

The total power is calculated based on the total θJA value, ambient, and junction temperatures with thefollowing equation.Figure 3-12: Total PowerLogi

Table 3-4: General Settings in the Logic WorksheetInput Parameter DescriptionHigh-Speed Tile UsageSelect the High-Speed Tile Usage setting. This value

Column Heading DescriptionToggle%Enter the average percentage of logic toggling on each clock cycle. Thetoggle percentage ranges from 0 to 100%. Typic

Figure 3-14: 4-Bit Counter ExampleTFFPFNT QCLRNTFFPFNT QCLRNTFFPFNT QCLRNTFFPFNT QCLRNVCCVCCVCCVCCcout2cout1cout0clockcout3OUTPUTcout0cout0OUTPUTcout3

Figure 3-15: RAM Worksheet of the PowerPlay EPE SpreadsheetTable 3-6: RAM Worksheet InformationColumn Heading DescriptionModule Enter a name for the R

Column Heading DescriptionRAM ModeSelect from the following modes:• Single-Port• Simple Dual-Port• True Dual-Port• ROMThe mode is based on how the Qua

Column Heading DescriptionPort B–R/W %For RAM blocks in true dual-port mode, enter the average percentageof time Port B of the RAM block is in write m

Factors Affecting the PowerPlay Early Power Estimator SpreadsheetAccuracy...

DSP WorksheetEach row in the DSP section represents a DSP design module where all instances of the module have thesame configuration, clock frequency,

Column Heading DescriptionClock Freq (MHz) Enter the clock frequency for the module in MHz. This value is limitedby the maximum frequency specificatio

I/O WorksheetEach row in the I/O section represents a design module where the I/O pins have the same I/O standard,input termination, current strength

Figure 3-18: Total Thermal Powerthermal power = thermal PVCC + thermal PPD + thermal PIO The following figure shows the I/O power consumption. The ICC

Column Heading DescriptionI/O StandardSelect the I/O standard used for the input, output, orbidirectional pins in this module from the drop-down list.

Column Heading DescriptionData RateSelect either SDR or DDR as the I/O data rate.This indicates whether the I/O value is updated once (singledata rate

Column Heading DescriptionThermal Power (W)–RoutingThis shows the power dissipation due to estimated routing(in watts).Routing power depends on placem

Figure 3-20: PLL Worksheet of the PowerPlay EPE SpreadsheetTable 3-10: PLL Worksheet InformationColumn Heading DescriptionModule Specify a name for th

For more information about the PLLs of the supported device families, refer to the “Clock Networks andPLLs“ chapter of the respective device handbook.

Column Heading DescriptionLocal Enable %Enter the average percentage of time that clock enable is high fordestination flipflops.Local clock enables fo

PowerPlay Early Power Estimator Overview12015.01.20UG-01070SubscribeSend FeedbackThis user guide describes the PowerPlay Early Power Estimator (EPE) s

Figure 3-22: HSDI Worksheet of the PowerPlay EPE SpreadsheetTable 3-12: HSDI Worksheet InformationColumn Heading DescriptionTX/RX Module Specify a nam

Column Heading DescriptionTotal Power This shows the estimated power (in watts) based on thedata rate and number of channels you entered. This valueis

Figure 3-23: XCVR Worksheet of the PowerPlay EPE SpreadsheetTable 3-13: XCVR Worksheet InformationColumn Heading DescriptionModule Specify a name for

Column Heading Description# of Channels Enter the number of channels used in thistransceiver domain. These channels are groupedtogether in one transce

Column Heading DescriptionPLL Type Select ATX or CMU for device families that supportmultiple transmitter PLL types. If the channel usesfPLL as transm

Column Heading DescriptionRate Match FIFO UsedEnter whether or not the rate matching FIFO isused.To enter this parameter, set the XCVR Page Modesectio

Figure 3-24: HMC Worksheet of the PowerPlay EPE SpreadsheetTable 3-14: HMC Worksheet InformationColumn Heading DescriptionModule Specify a name for th

Each row in the IP worksheet represents a separate IP domain. For the EPE spreadsheet version 11.0 andlater, supported IPs are external memory interfa

Related InformationAltera's External Memory Interface Solutions CenterHPS WorksheetThe HPS worksheet is only applicable to Arria V and Cyclone V

Module Parameters DescriptionSDRAMFrequency Enter the operating frequency of the selected DDR protocolused.Type Select the DDR protocol used.Data Widt

Power Model Status for Supported Device FamiliesThe power models in the PowerPlay EPE spreadsheet are either in preliminary or final status. Prelimina

Power Breakout for Multiple Voltage SuppliesFor VCCIO and VCCPD, the minimum current requirement reported for ICCIO and ICCPD respectively hasthe same

Figure 3-28: Enpirion Worksheet of the PowerPlay EPE SpreadsheetTable 3-17: Enpirion Worksheet InformationColumn Heading DescriptionGroup Compatible r

Column Heading DescriptionSuggested Enpirion Part Suggested Enpirion part is automatically populatedwith the part number of the device that most close

Factors Affecting the PowerPlay Early PowerEstimator Spreadsheet Accuracy42015.01.20UG-01070SubscribeSend FeedbackMany factors can affect the estimate

If the HDL is complete, the best way to determine toggle rate is to simulate the design. The accuracy oftoggle rate estimates depends on the accuracy

Figure 4-4: Airflow and Heat SinksFANFPGAHeat Sink FinsHeat SinkWhen placing the heat sink on the FPGA, the direction of the fins must correspond with

Figure 4-6: Temperature VariancesFAN1234FPGAFor example, location 3 is where the ambient temperature pertaining to the device should be obtained forin

Additional Information for PowerPlay EarlyPower Estimator User GuideA2015.01.20UG-01070SubscribeSend FeedbackDocument Revision History for PowerPlay E

Date Version ChangesJanuary 2012 6.0• Added “HMC Worksheet” section.• Updated “IP Worksheet” section.• Updated Figure 3–1, Figure 3–2, Figure 3–21, an

Setting Up the PowerPlay Early PowerEstimator22015.01.20UG-01070SubscribeSend FeedbackSystem RequirementsThe PowerPlay EPE spreadsheet requires the fo

Changing the Macro Security Level in Microsoft Excel 2007To change the macro security level in Microsoft Excel 2007, follow these steps:1. Click the O

Estimating Power Consumption Before Starting the FPGA DesignTable 2-1: Advantage and Constraints of Power Estimation before Designing FPGAAdvantage Co

information from the <revision name>_early_pwr.csv into the PowerPlay EPE spreadsheet, you can edit thePowerPlay EPE spreadsheet to reflect the