ug_intro_to_megafunctions(7)

UG-01056-3.0May2013

InstantiatingMegafunctionsinHDL7

Figure3:IPFilesGeneratedbyMegaWizardPlug-In

Manager

RelatedInformation

SynopsysSimplifySupport

InstantiatingMegafunctionsinHDL

YoucaninstantiateamegafunctiondirectlyinyourHDLcodebycallingthemegafunctionandsettingitsparametersasyouwouldinanyothermodule,component,orsubdesign.WheninstantiatingamegafunctioninVHDL,besuretoincludethecorrectlibraries.

UsingHDLCodeTemplates

TheQuartusIIsoftwareincludescodeexamplesortemplatesforinferredRAMs,ROMs,shiftregisters,arithmeticfunctions,andDSPfunctionsoptimizedforAlteradevices.ToaccessHDLcodetemplatestodefinemegafunctions,followthesesteps:

1.Openafileinthetexteditor.2.OntheEdit>Inserttemplate.

3.IntheInsertTemplatedialogbox,clickthe+icontoexpandeithertheVerilogHDLcategoryortheVHDLcategory,dependingontheHDLyouprefer.

4.UnderFullDesigns,expandthenavigationtreetodisplaythetypeoffunctionsyouwanttoinfer.5.SelectthefunctiontodisplaythecodefortheselectedtemplateinthePreviewpane,andclickInsert.Note:FornewDSPfeaturesoptimizedforArriaV,CycloneV,andStratixV,expandtheArithmetic

category,andthenexpandtheDSPfeatures(Stratix-V,Arria-VandCyclone-V)category.

IntroductiontoMegafunctionIPCores

AlteraCorporation