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ID:47225607
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页数:14页
时间:2019-08-28
《VHDL语言设计数字系统的外文翻译》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、DESIGNINGADIGITALSYSTEMWITHVHDLValentinaStoyanovaKukenskaAbstract:InthispaperadigitalsystemdesigningwithVHDLispresented.Hereareexposedsequentiallyallthephasesoftheverydigitalsystem'sdesigning.Themainmethodsarealsoonshowhere.Theprojectdescriptions’typesarepresented.Thestressisputontheus
2、eofVHDLforsynthesisofstructuralandbehavioralmodels.ForcreatingtheprojectofthechosendigitalsystemanintegratedsystemWebPackwasused,aswellasModelSImXEIIforthemodel'ssimulation.Keywords:Design,VHDL,digitalsystems,model,WebPack1.INTRODUCTIONThedigitalsystemsarecomplexones,consistingoflotsof
3、components.Asfarastheautomateddesignofsuchsystemsisconcerned,methodsfordesigningtimereducingandlimitingthecomplexityofthetaskaresoughtoutandapplied.Amethodofthekindisconnectedwiththedecompositionandhierarchyprinciples.Thedecompositionofthesystemsisrealizedinaway,whichdifferentiatesfunc
4、tionallyindependentmodules.Adigitalsystemcanbedescribedasamodulewithinputsand/oroutputs.Theelectricalvaluesontheoutputsaresomefunctionofthevaluesontheinputs.Onewayofdescribingthefunctionofamoduleistodescribehowitiscomposedofsub-modules.Eachofthesub-modulesisaninstanceofsomeentity,andth
5、eportsoftheinstancesareconnectedusingsignals.Thiskindofdescriptioniscalledastructuraldescription.Inmanycases,itisnotappropriatetodescribeamodulestructurally.Onesuchcaseisamodule,whichisatthebottomofthehierarchyofsomeotherstructuraldescription.Forexample,ifyouaredesigningasystemusingICp
6、ackagesboughtfromanICshop,youdonotneedtodescribetheinternalstructureofanIC.Insuchcases,adescriptionofthefunctionperformedbythemoduleisrequired,withoutreferencetoitsactualinternalstructure.Suchadescriptioniscalledafunctionalorbehavioraldescription.Usually,forstructuralandbehavioraldescr
7、iption,eitherVerilogorVHDLisused.InthispaperadesigningwithVHDLispresented.Hereareexposedsequentiallyallthephasesoftheverydigitalsystem'sdesigning.Themainmethodsarealsoonshowhere.Theprojectdescriptions’typesarepresented.ThestressisputontheuseofVHDLforsynthesisofstructuralandbehavioral
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