MAXVSchematicReviewWorksheet.docx

MAXVSchematicReviewWorksheet.docx

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MAXVSchematicReviewWorksheet

MAX®VDeviceSchematicReviewWorksheet

ThisdocumentisintendedtohelpyoureviewyourschematicandcomparethepinusageagainsttheMAXVDeviceFamilyPinConnectionGuidelines（PDF）version1.0andotherreferencedliteratureforthisdevicefamily.ThetechnicalcontentisdividedintofocusareassuchasFPGApowersupplies,programming,anddualpurposeI/Opins.

Withineachfocusarea,thereisatablethatcontainsthevoltageorpinnameforallofthededicatedanddualpurposepinsforthedevicefamily.Insomecases,thedevicedensityandpackagecombinationmaynotincludesomeofthepinsshowninthisworksheet,youshouldcrossreferencewiththepin-outfileforyourspecificdevice.Linkstothedevicepin-outfilesareprovidedatthetopofeachsection.

Beforeyoubeginusingthisworksheettoreviewyourschematicandcommittoboardlayout,Alterahighlyrecommends:

1）ReviewtheKnowledgeDatabaseforMAXVDeviceKnownIssuesandotherMAXVDeviceKnowledgeBaserecords.

2）CompileyourdesignintheQuartus®IIsoftwaretocompletion.

Forexample,thereareI/OrelatedVCCIOrequirementsfortheI/Ostandardsusedinthedevice.Ifyoudonothaveacompleteproject,thenataminimumatoplevelprojectshouldbeusedwithallI/Opinsdefined,placed,andapplyalloftheprogrammableoptionsthatyouplantouse.TheI/OAnalysistoolinthePinPlannercanthenbeusedontheminimalprojecttovalidatethepinoutintheQuartusIIsoftwaretoassuretherearenoconflictswiththedevicerulesandguidelines.

WhenusingtheI/OAnalysistoolyoumustensuretherearenoerrorswithyourpinout.Additionally,youshouldcheckallwarningandcriticalwarningmessagestoevaluatetheirimpactonyourdesign.Youcanrightclickyourmouseoveranyerror,warningorcriticalwarningmessageandselect“Help”.ThiswillbringopenanewHelpwindowwithfurtherinformationonthecauseoftheerrororwarning,andtheactionthatisrequired.

Forexample,youcanuseelectromigrationcurrentassignmentstospecifytheDCcurrentdrawonI/Opinsthatdriveresistiveloads,suchaspullupresistorsorLEDs.ThedevicehasDCcurrentdensityrestrictionsthatmustbemetbasedonthepinlocationsusedinthedesign.Thefollowingerrorisgeneratedifthedevicecurrentdensityrestrictionsareviolated:

Error（169007）:

CurrentdensitytoohighinI/Obank--pinscombinedexceedthelimit（.mA）by.mA

Thehelpfileprovidesthefollowing:

CAUSE:

Youmadepinassignmentsinthespecifiedrangeofpads,butsomeofthepinsaretooclosetogether.ThespecifiedI/Obankdrawsacurrentthatexceedsthemaximumbythespecifiedamount.ThedevicecandriveonlyalimitedamountofcurrenttoeachI/Obank.Clickthe+icontodisplaydetailsaboutthespecificpins,type,location,andI/OstandardsusedinthespecifiedI/Obank.

ACTION:

ReassignsomepinstoreducethecurrentdensityorassignsomepinstouseanI/Ostandardwithalowercurrent.TodisplayI/Obanks,opentheChipPlannerandturnonI/ObankdisplayintheLayersSettingsdialogbox.

TherearemanyreportsavailableforuseafterasuccessfulcompilationorI/Oanalysis.Forexample,youcanusethe“AllPackagePins”and“I/OBankUsage”reportswithintheCompilation–Fitter–ResourceSectiontoseealloftheI/OstandardsandI/Oprogrammableoptionsthatareassignedtoallofthepinsinyourdesign,aswellasviewtherequiredVCCIOforeachI/Obank.Thesereportsmustmatchyourschematicpinconnections.

Thereviewtablehasthefollowingheading:

Plane/Signal

SchematicName

ConnectionGuidelines

Comments/Issues

Thefirstcolumn（Plane/Signal）liststhedevicevoltageorsignalpinname.Youshouldonlyeditthiscolumntoremovededicatedordualpurposepinnamesthatarenotavailableforyourdevicedensityandpackageoption.

Thesecondcolumn（SchematicName）isforyoutoenteryourschematicname（s）forthesignal（s）orplaneconnectedtothedevicepin（s）.

Thethirdcolumn（ConnectionGuidelines）shouldbeconsidered“readonly”asthiscontainsAltera’srecommendedconnectionguidelinesforthevoltageplaneorsignal.

Thefourthcolumn（Comments/Issues）isanareaprovidedasa“notepad”foryoutocommentonanydeviationsfromtheconnectionguidelines,andtoverifyguidelinesaremet.Inmanycasestherearenotesthatprovidefurtherinformationanddetailthatcomplimenttheconnectionguidelines.

Hereisanexampleofhowtheworksheetcanbeused:

Plane/Signal

SchematicName

ConnectionGuidelines

Comments/Issues

VCCINT

+1.8V

Connectedto+1.8Vplane,noisolationisnecessary.

Missinglowandmediumrangedecoupling,checkPDN.

SeeNotes（1-1）（1-2）.

LegalNote:

PLEASEREVIEWTHEFOLLOWINGTERMSANDCONDITIONSCAREFULLYBEFOREUSINGTHISSCHEMATICREVIEWWORKSHEET（“WORKSHEET”）PROVIDEDTOYOU.BYUSINGTHISWORKSHEET,YOUINDICATEYOURACCEPTANCEOFSUCHTERMSANDCONDITIONS,WHICHCONSTITUTETHELICENSEAGREEMENT（"AGREEMENT"）BETWEENYOUANDALTERACORPORATIONORITSAPPLICABLESUBSIDIARIES（"ALTERA"）.

1.SubjecttothetermsandconditionsofthisAgreement,Alteragrantstoyou,fornoadditionalfee,anon-exclusiveandnon-transferablerighttousethisWorksheetforthesolepurposeofverifyingthevalidityofthepinconnectionsofanAlteraprogrammablelogicdevice-baseddesign.YoumaynotusethisWorksheetforanyotherpurpose.TherearenoimpliedlicensesgrantedunderthisAgreement,andallrights,exceptforthosegrantedunderthisAgreement,remainwithAltera.

2.Alteradoesnotguaranteeorimplythereliability,orserviceability,ofthisWorksheetorotheritemsprovidedaspartofthisWorksheet.ThisWorksheetisprovided'ASIS'.ALTERADISCLAIMSALLWARRANTIES,EXPRESSORIMPLIED,INCLUDINGTHEIMPLIEDWARRANTIESOFMERCHANTABILITY,FITNESSFORAPARTICULARPURPOSE,ANDNON-INFRINGEMENT.ALTERAHASNOOBLIGATIONTOPROVIDEYOUWITHANYSUPPORTORMAINTENANCE.

3.InnoeventshalltheaggregateliabilityofAlterarelatingtothisAgreementorthesubjectmatterhereofunderanylegaltheory（whetherintort,contract,orotherwise）,exceedOneHundredUS Dollars（US$100.00）.InnoeventshallAlterabeliableforanylostrevenue,lostprofits,orotherconsequential,indirect,orspecialdamagescausedbyyouruseofthisWorksheetevenifadvisedofthepossibilityofsuchdamages.

4.ThisAgreementmaybeterminatedbyeitherpartyforanyreasonatanytimeupon30-days’priorwrittennotice.ThisAgreementshallbegovernedbythelawsoftheStateofCalifornia,withoutregardtoconflictoflaworchoiceoflawprinciples.YouagreetosubmittotheexclusivejurisdictionofthecourtsintheCountyofSantaClara,StateofCaliforniafortheresolutionofanydisputeorclaimarisingoutoforrelatingtothisAgreement.Thepartiesherebyagreethatthepartywhoisnotthesubstantiallyprevailingpartywithrespecttoadispute,claim,orcontroversyrelatingtothisAgreementshallpaythecostsactuallyincurredbythesubstantiallyprevailingpartyinrelationtosuchdispute,claim,orcontroversy,includingattorneys'fees.FailuretoenforceanytermorconditionofthisAgreementshallnotbedeemedawaiveroftherighttolaterenforcesuchtermorconditionoranyothertermorconditionoftheAgreement.

BYUSINGTHISWORKSHEET,YOUACKNOWLEDGETHATYOUHAVEREADTHISAGREEMENT,UNDERSTANDIT,ANDAGREETOBEBOUNDBYITSTERMSANDCONDITIONS.YOUANDALTERAFURTHERAGREETHATITISTHECOMPLETEANDEXCLUSIVESTATEMENTOFTHEAGREEMENTBETWEENYOUANDALTERA,WHICHSUPERSEDESANYPROPOSALORPRIORAGREEMENT,ORALORWRITTEN,ANDANYOTHERCOMMUNICATIONSBETWEENYOUANDALTERARELATINGTOTHESUBJECTMATTEROFTHISAGREEMENT.

Index

SectionI:

Power

SectionII:

Programming

SectionIII:

I/O

SectionIV:

DocumentRevisionHistory

SectionI:

Power

Literature:

MAXVDevices

MAXVDevicePinOutFiles

MAXVDeviceFamilyPinConnectionGuidelines（PDF）

PowerSupplyIntegritySupportPage（Generaldecouplingguidelines）

PowerDeliveryNetwork（PDN）Tool

PowerDeliveryNetwork（PDN）ToolUserGuide（PDF）

EarlyPowerEstimator

PowerPlayPowerAnalyzerSupportResources

AlteraBoardDesignResourceCenter（Generalboarddesignguidelines,PDNdesign,isolation,tools,andmore）

Index

Plane/Signal

SchematicName

ConnectionGuidelines

Comments/Issues

VCCINT

AllVCCINTpinsrequirea1.8Vsupply.

Decouplingforthesepinsdependsonthedesigndecouplingrequirementsofthespecificboard.

VerifyGuidelineshavebeenmetorlistrequiredactionsforcompliance.

SeeNotes（1-1）（1-2）.

VCCIO[1..4]

Supportedvoltagesare1.2V,1.5V,1.8V,2.5V,and3.3V.

NoteVCCIO1doesnotsupport1.2V

Decouplingforthesepinsdependsonthedesigndecouplingrequirementsofthespecificboard.

VerifyGuidelineshavebeenmetorlistrequiredactionsforcompliance.

SeeNotes（1-1）（1-2）.

IndexTopofSection

Plane/Signal

SchematicName

ConnectionGuidelines

Comments/Issues

GND

GroundpinsfortheI/Obanksandinternalsupply.AllGNDpinsmustbeconnectedtotheboardGNDplane.

GNDpinsinthe5M1270Zand5M2210ZdevicesconsistofGNDIOandGNDINTpins.

VerifyGuidelineshavebeenmetorlistrequiredactionsforcompliance.

SeeNotes（1-1）（1-2）.

Notes:

1-1.Thisworksheetdoesnotcalculaterequireddecoupling,itisexpectedthedesignerwillselectdecouplingbasedonanalysisofpowerrequired