微机原理及应用双语智慧树知到期末考试答案2024年_第1页
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微机原理及应用(双语)智慧树知到期末考试答案2024年微机原理及应用(双语)WhatvoltageontheRESETpinwillcauseaResettooccur?()

A:HighlevelB:HighthenlowC:LowthenhighD:Lowlevel答案:HighthenlowFortimers,whichmodeisa16-bittimer/counter?()

A:Mode1B:Mode2C:Mode0D:Mode3答案:Mode1Whichregistercandeterminethe4differentmodesofserialcommunication?()

A:SCONB:TCONC:ET0D:TMOD答案:SCONForindividualinterrupts,howmanyprioritylevelscanbeassigned?()

A:3B:2C:1D:5答案:2Intheinstruction”MOV@R0,A”,whatistheaddressingmodeofthefirstoperand?()

A:ImmediateB:DirectC:IndirectD:Register答案:IndirectThemaximumcurrentaportpincansourceis…()

A:400mAB:1mAC:2mAD:60A答案:60AForTimer1interrupt,whatistheaddressofitISR(InterruptServiceRoutine)?()

A:0003hB:0013hC:000BhD:001Bh答案:001BhWhichflagwillbesetifreceiveSBUFhasabyteintheserialportonthe8051?()

A:RENB:SCONC:RID:TI答案:RIWhichexpressionisusedtocalculatethePreloadValueforatimer/counter?()

A:(Count–Maximumvalue-1)B:(Maximumvalue+1–Count)C:(Count+1)D:(Maximumvalue–Count)答案:(Maximumvalue+1–Count)Afterexecutingtheinstruction“MOVIE,#04h”,howmanyinterruptsareenabled?()

A:3B:2C:1D:0答案:0InaninstructionlineofASM51program,whichpartisindispensable(不可或缺的)?()

A:CommentB:OperandC:OpcodeD:Label答案:OpcodeWhichinstructionwillcauseawriteoperationtomemory?()

A:MOVCA,@A+DPTRB:MOVX@DPTR,AC:MOVXA,@DPTRD:MOVCA,@A+PC答案:MOVX@DPTR,AIntheIdlemodewhichcomponentsofthesystemareinactive?()

A:ROMB:RAMC:CPUD:SFRs答案:CPUFortheRS232standard,whichofthefollowingrepresentslogiclevel“0”?()

A:0VB:+5VC:+12VD:-12V答案:+12VWhatvalueofexternalcapacitorsisrequiredbyanexternalcrystal?()

A:300FB:3pFC:30nFD:30pF答案:30pFWhichofthefollowinginstructionsarepseudo-instruction?()

A:MOVB:EQUC:DBD:ORG答案:EQU###DB###ORGWhichthreebusescanweuseforthe8051expansion?()

A:DatabusB:ControlbusC:SystembusD:Addressbus答案:Databus###Addressbus###ControlbusIngeneral,whatmethodcanweusetoconnect7-segmentdisplaysto8051?()

A:dynamicdisplayB:interruptC:staticdisplayD:directmethod答案:dynamicdisplay###staticdisplayWhichofthefollowingchipsareRAMchipsforexpansion?()

A:62128B:62256C:2732D:6264答案:6264###62128###62256WhichtypeofthechipbelongtotheMCS-51family?()

A:The8031B:The8751C:The8951D:The8051答案:The8051###The8751###The8031###The8951Whichcontrollinemayweuseifan8051chipisconnectedtoanexternalEPROM?()

A:/WRB:/EAC:/PSEND:/RD答案:/PSEN###/EAWhataddressingmodescanweuseinASM51?()

A:BitaddressingB:IndirectaddressingC:DirectaddressingD:RegisteraddressingE:Immediateaddressing答案:Immediateaddressing###Directaddressing###Registeraddressing###Indirectaddressing###BitaddressingTheDAC0832chiprequiresanoperationalamplifierconnectedtoRD&WRpins.()

A:错B:对答案:错Ifhandshakingisnotprovideforserialcommunication,datamaybelost.()

A:对B:错答案:对TheALEpinisconnectedtothelatchonthelowbyteofanexternaladdressbus.()

A:对B:错答案:对ASM51isknownasalinearprogramminglanguage.()

A:错B:对答案:对TheTMODregisterisnotbit-addressable.()

A:错B:对答案:对Port3pinsallhavealternatefunctions.()

A:对B:错答案:对TheADC0809chipisaconverterbasedontheprincipleofsuccessive-approximation.()

A:错B:对答案:对TheDBinstructionisusedtostorebytesofdataintheCodememory.()

A:对B:错答案:对AfteraReset,thevalueinthestackpointerwillbe00H.()

A:错B:对答案:错Thereare8interruptsourcesinthe8051microcontroller.()

A:对B:错答案:错TheSM0,SM1bitscontrolthemodeoftheserialport.()

A:对B:错答案:对IntheRS232protocollogic0isrepresentedby+12V.()

A:对B:错答案:对TheMCS-51microcontrolleris8-bitdevice.()

A:对B:错答案:对Timermode1operatesasa13-bitup-counter.()

A:错B:对答案:错InMCS-51microcontrollers,Harvardmemoryorganizationisused.()

A:错B:对答案:对TheTMODregistercontainsbitsforbothTimer0andTimer1.()

A:对B:错答案:对In8051,theRESEToperationcanstarttheprogramattheaddressof0000H.()

A:错B:对答案:对Fortimers,mode1isa8-bitauto-reloadtimer.()

A:错B:对答案:错Timermode2operatesasan8-bitauto-reloadup-counter.()

A:对B:错答案:对TheTCONregisterisbit-addressable.()

A:对B:错答案:对Theinstruction“ANLA,#0F0h”willclearthelownibbleofaccumulatorA.()

A:对B:错答案:对Theinstruction“MOVPSW,#18H”willselectregisterbank3.()

A:错B:对答案:对TheSBUFregisteronthe8051isusedforstoringreturnaddresses.()

A:对B:错答案:错Acommon-anode7-segmentconnectedtoan8051uses“SETB”toturnsegmentson.()

A:错B:对答案:错Whenthe/PSENpinishigh,theprogramwillbereadfromanexternalROM.()

A:对B:错答案:错WhatarethetypesofinterruptsourcesontheMCS-51?()

A:Externalinterrupt0&1B:Timer/counter0&1C:ResetD:Serialport答案:AI参考:正确选项是【ABCD】:MCS-51单片机的中断源包括外部中断0和外部中断1、定时器/计数器0和定时器/计数器1、复位信号以及串行端口。这些中断源在单片机编程中非常重要,可以用于控制程序的执行流程和处理不同类型的事件。'Whatarethelevelsofcomputerpower?()

A:microcomputersB:m

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