電子科技大學20102011年第學期期末考試A卷課程名稱：_數(shù)字邏輯設計及應用考試形式：閉卷考試日期：2011年月7日考試長 分課程成績構成%，期 實0期%電子科技大學20102011年第學期期末考試A卷課程名稱：_數(shù)字邏輯設計及應用考試形式：閉卷考試日期：2011年月7日考試長 分課程成績構成%，期 實0期%本試卷試題由 部分構成，共 頁Fillyouranswersinthe(2’X1.AparitycircuitwithNinputsN-XOR Ifthenumberof“1”inanN.variablesset,suchasA、B、C、…W,isevennumber,thenABCW 4bitbinarynumbers,thatis,2.Acircuitwith4flip-flopscan3.Amodulo-20countercircuit5Dfilp-flopsatleast.Amodulo-288counter34-bitcountersof74x163at4.A8-bitringcounter8normalstates.Ifwewanttorealizethesamenumberstates,weneed45.Iftheinputis10000000ofan8bitDAC,thecorrespondingoutputis5v.ThenaninputistotheDAC,thecorrespondingoutput 5/128(0.0391)V;ifaninputis10001000,correspondingDACoutput 得分題一二三四五六七八九十合得Pleaseselecttheonlyonecorrectanswerinthefollowingquestions.(2’)chipsof4K4Pleaseselecttheonlyonecorrectanswerinthefollowingquestions.(2’)chipsof4K4bitsRAMtoforma16K8bits1.WeneedBA)B)C)D)2.Todesigna"01101100"serialsequencegeneratorbyshiftregisters,weneed(A)-bitshiftregisterasA)B)C)D)B3.Forthefollowinglatchesorflip-flops,)canbeusedtoformshiftA)S-RB)master-slaveflip-C)S-RlatchwithD)S’-R’4.Whichofthefollowingstatementsiscorrect?C)A)TheoutputsofaMooremachinedependoninputsaswellasthe得分B)TheoutputsofaMealymachinedependonlyontheC)TheoutputsofaMealymachinedependoninputsaswellB)TheoutputsofaMealymachinedependonlyontheC)TheoutputsofaMealymachinedependoninputsaswellasthe A),B),C)are5.Thereisastate/outputtableofasequentialmachineasthetable1,whattheinputsequencesdetected?D)A)B)C)D)TableAssumetheinitialstateisQ2Q1=00,completethetimingdiagramforQ2,Q1andZ.(Don’tconsiderpropagationdelayofeachcomponent)得分SX01ABCDEFigure-: D2=Q/1Figure-: D2=Q/1Q/2Q1=D=QQ=D=Q+** 22212輸出方程：Z=IV.DesignaMealysequentialdetectorwithoneinputxandoneoutputz.Ifandonlyifcontinuestobe1111orIV.DesignaMealysequentialdetectorwithoneinputxandoneoutputz.Ifandonlyifcontinuestobe1111or1001,theoutputzis1.Otherwise,theoutputzis0.Theoverlap x：01011110011001111z：00000010010001001XStateS01A1BCDEFXStateS01A1BXCStateS01DE1FV.AnalyzethecircuitasshownXStateS01A1BXCStateS01DE1FV.Analyzethecircuitasshownbelow,whichcontainsa74x1634-bitbinarycounter,74x138decoderanda74x1534-input,1-bitmultiplexer.WhencontrolinputMN=10formultiplexer,1.Writeoutthelogicexpressionof74x153’outputF.2.Writeoutthesequenceofstatesforthe74x161inthecircuit.3Describethemodulus(模ofthecircuit.的功能QDQCQBQD*QC*QB*0XXXXXX的功能QDQCQBQD*QC*QB*0XXXXXX 010XXXXX B0110XXXXQDQCQB011X0XXXQDQCQB0VI.Designaminimal-costmodulo-5synchronouscounterwithDflip-flopsnecessarygates,thestatetransitionsequenceis02413VI.Designaminimal-costmodulo-5synchronouscounterwithDflip-flopsnecessarygates,thestatetransitionsequenceis024130…withthebinarycode.1.Filloutthetransition/outputtable.2.Writ