语音控制器毕业设计外文翻译SPCE061A 32K x 16 语音控制器.docx

语音控制器毕业设计外文翻译SPCE061A 32K x 16 语音控制器.docx

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语音控制器毕业设计外文翻译SPCE061A32Kx16语音控制器

SPCE061A32Kx16SOUNDCONTROLLER

1.GENERALDESCRIPTION

TheSPCE061A,a16-bitarchitectureproduct,carriesthenewest16-bitmicroprocessor,μ’nSP™（pronouncedasmicro-n-SP）,developedbySunplusTechnology.Thishighprocessingspeedassurestheμ’nSP™iscapableofhandlingcomplexdigitalsignalprocesseseasilyandrapidly.Therefore,theSPCE061Aisapplicabletotheareasofdigitalsoundprocessandvoicerecognition.Theoperatingvoltageof3.0Vthrough3.6Vandspeedof0.32MHzthrough49.152MHzyieldtheSPCE061Atobeeasilyusedinvarietiesofapplications.Thememorycapacityincludes32K-wordflashmemoryplusa2K-wordworkingSRAM.Otherfeaturesinclude32programmablemulti-functionalI/Os,two16-bittimers/counters,32768HzRealTimeClock,LowVoltageReset/Detection,eightchannels10-bitADC（onechannelbuilt-inMICamplifierwithautogaincontroller）,10-bitDACoutputandmanyothers.

BLOCKDIAGRAM

3.FEATURES

􀂄16-bitμ’nSP™microprocessor

􀂄CPUclock:

0.32MHz-49.152MHz

􀂄Operatingvoltage:

3.0V-3.6V

􀂄ProgramFlashOperatingvoltage:

3.0V-3.6V

􀂄IOPortA&Boperatingvoltage:

3.0V-5.5V

􀂄32K-wordflashmemory

􀂄2K-wordworkingSRAM

􀂄Software-basedaudioprocessing

􀂄CrystalResonator

􀂄Standbymode（ClockStopmode）forpowersavings,

Max.2.0μA@VDD=3.6V

􀂄Two16-bittimers/counters

􀂄Two10-bitDACoutputs

􀂄32generalI/Os（bitprogrammable）

􀂄14INTsourceswithtwoprioritylevels

􀂄Keywakeupfunction（IOA0-7）

􀂄Approx.190secspeech@2.0Kbit/persecwithSACM_S200

􀂄PLLfeatureforsystemclock

􀂄32768HzRealTimeClock（RTC）

􀂄Eightchannels10-bitADconverter

􀂄ADCexternaltopreferencevoltage

􀂄2.0Vvoltageregulatoroutput,5mAofdrivingcapability

􀂄SerialinterfaceI/O（SIO）

􀂄Built-inmicrophoneamplifierandAGCfunction

􀂄UARTreceiverandtransmitter（fullduplex）

􀂄Lowvoltageresetandlowvoltagedetection

􀂄Watchdogenable（bondingoption）

􀂄ICEfunctionfordevelopmentanddownloadintoflashmemory

􀂄Securityfunctiontoprotectcodetobereadandwritten.

4.APPLICATIONFIELD

􀂄Voicerecognitionproducts

􀂄Intelligentinteractivetalkingtoys

􀂄Advancededucationaltoys

􀂄Kidslearningproducts

􀂄Kidsstorybook

􀂄Generalspeechsynthesizer

􀂄Longdurationaudioproducts

􀂄Recording/playbackproducts

SIGNALDESCRIPTIONS

5.FUNCTIONALDESCRIPTIONS

5.1.CPU

TheSPCE061Aisequippedwitha16-bitμ’nSP™,thenewest16-bitmicroprocessorbySunplusandpronouncedasmicro-n-SP.Eightregistersareinvolvedinμ’nSP™:

R1-R4（General-purposeregisters）,PC（ProgramCounter）,SP（StackPointer）,BasePointer（BP）andSR（SegmentRegister）.TheinterruptsincludethreeFIQs（FastInterruptRequest）andeightIRQs（InterruptRequest）,plusonesoftware-interrupt,BREAK.

Moreover,ahighperformancehardwaremultiplierwiththecapabilityofFIRfilterisalsobuiltintoreducethesoftwaremultiplicationloading.

5.2.Memory

5.2.1.SRAM

TheamountofSRAMis2K-word（includingStack）,rangedfrom$0000through$07FFwithaccessspeedoftwoCPUclockcycles.

5.2.2.Flashmemory

Flashmemory（$008000~$00FFFF）isahigh-speedmemorywithaccessspeedoftwoCPUclockcycles.FLASHeraseandprogramfunctionsmustbeusedinIDEtools.

5.3.PLL,Clock,PowerMode

5.3.1.PLL（PhaseLockLoop）

ThepurposeofPLListoprovideabasefrequency（32768Hz）andtopumpthefrequencyfrom20.48MHzto49.152MHzforsystemclock（Fosc）.ThedefaultPLLfrequencyis24.576MHz.

5.3.1.1.Systemclock

Basically,thesystemclockisprovidedbyPLLandprogrammedbythePort_SystemClock（W）todeterminethefrequencyofclockforsystem.ThedefaultsystemclockFosc=24.576MHzandCPUclockisFosc/8ifnotspecified.TheinitialCPUclockisFosc/8aftersystemwakesupandtobeadjustedtodesiredCPUclockbyprogrammingthePort_SystemClock（W）.ThisavoidsFlashROMreadingfailurewhensystemwakesup.

5.3.1.2.32768HzRTC

TheRealTimeClock（RTC）isnormallyusedinwatch,clockorothertimerelatedproducts.A2Hz-RTC（1/2second）functionisloadedinSPCE061A.TheRTCcountsthetimingaswellastowakeCPUupwheneverRTCoccurs.SincetheRTCisgeneratedeach0.5seconds,timecanbetracedbythenumbersofRTCoccurrence.Inaddition,SPCE061Asupports32768Hzoscillatorinnormalmodeandauto-power-savingmode.Innormalmode,32768HzOSCalwaysrunsatthehighestpowerconsumption.Inauto-power-savingmode,however,itrunsinnormalmodeforthefirst7.5secondsandchangesbacktopower-savingmodeautomaticallytosavepowers.

5.4.StandbyMode

TheSPCE061Aalsooffersastandbymodeforlowpowerapplicationneeds.Toenterstandbymode,thedesiredkeywakeupport（IOA[7:

0]）mustbeconfiguredtoinputfirst.AndreadthePort_IOA_Latch（R）tolatchtheIOAstatebeforeenteringthestandbymode.Alsoremembertoenablethecorrespondinginterruptsource（s）forwakeup.Afterthat,stoptheCPUclockbywritingtheSTOPCLOCKRegister（b0~b2ofPort_SystemClock（W））toenterstandbymode.Insuchmode,SRAMandI/OsremaininthepreviousstatestillCPUbeingawoken.ThewakeupsourcesinSPCE061AincludePortIOA7-0andIRQ1-IRQ6.AfterSPCE061Aisawoken,theCPUwillcontinuetoexecutetheprogram.Programmercanalsoenableordisablethe32768HzOSCwhenCPUisinstandbymode.

5.5.LowVoltageDetectionandLowVoltageReset

5.5.1.Lowvoltagedetection（LVD）

TherearetwoLVDlevelstobeselected:

2.9V,and3.3V.TheselevelscanbeprogrammedviaPort_LVD_Ctrl（W）.Asanexample,supposeLVDisgivento2.9V.Whenthevoltagedropsbelow2.9V,theb15ofPort_LVD_CtrlisreadasHIGH.Insuchstate,programcanbedesignedtoreacttothiscondition.

5.5.2.Lowvoltagereset

InadditiontotheLVD,theSPCE061Ahasanotherimportantfunction,LowVoltageReset（LVR）.WiththeLVRfunction,aresetsignalisgeneratedtoresetsystemwhentheoperatingvoltagedropsbelow2.3Vfor10consecutiveCPUclockcycles.WithoutLVR,theCPUbecomesunstableandmalfunctionswhentheoperatingvoltagedropsbelow2.3V.TheLVRwillresetallfunctionstotheinitialoperational（stable）stateswhenthevoltagedropsbelow2.3V.ALVRtimingdiagramisgivenasfollows:

5.6.Interrupt

TheSPCE061Ahas14interruptsources,groupedintotwotypes,FIQ（FastInterruptRequest）andIRQ（Interruptrequest）.ThepriorityofFIQishigherthanIRQ.FIQisthehigh-priorityinterruptwhileIRQisthelow-priorityone.AnIRQcanbeinterruptedbyaFIQ,butnotbyanotherIRQ.AFIQcannotbeinterruptedbyanyotherinterruptsources.

5.7.I/O

TwoI/OportsarebuiltinSPCE061A,PortAandPortB.ThePortAisanordinaryI/Owithprogrammablewakeupcapability.InadditiontotheregularIOfunction,thePortBcanalsoperformsomespecialfunctionsincertainpins.Supposeoperatingvoltageisrunningat3.6V（VDD）andVDDIO（powerforI/O）operatesfrom3.6V（VDD）to5.5V.Insuchcondition,theI/Opadiscapableofoperatingfrom0VthroughVDDIO.HoweverIOB13andIOB14arerecommendedtooperate<=3.6Vduringstandbymode,otherwisethesetwoIOswillhavecurrentleakage.ThefollowingdiagramisanI/Oschematic.

AlthoughdatacanbewrittenintothesameregisterthroughPort_DataandPort_Buffer,theycanbereadfromdifferentplaces,Buffer（R）andData（R）.TheIOA[7:

0]isthekeywakeupport.Toactivatekeywakeupfunction,latchdataonPORT_IOA_Latchandenablethekeywakeupfunction.WakeupistriggeredwhenthePortAstateisdifferentfromatthetimelatched.InadditiontoanordinaryI/Oport,PortBcarriessomespecialfunctions.AsummaryofPortBspecialfunctionsislistedasfollows:

Refertotheabovetable,theconfigurationofIOB2,IOB3,IOB4,andIOB5involvesfeedbackfunctioninwhichanOSCfrequencycanbeobtainedfromEXT1（EXT2）bysimplyaddingaRCcircuitbetweenIOB2（IOB3）andIOB4（IOB5）.

5.8.Timer/Counter

TheSPCE061Aprovidestwo16-bittimers/counters,TimerAandTimerB.TheTimerAiscalledauniversalcounter.TimerBisageneral-purposecounter.TheclocksourceofTimerAcomesfromthecombinationofclocksourceAandclocksourceB.InTimerB,theclocksourceisgivenfromsourceC.Whentimeroverflows,anINTsignalissenttoCPUtogenerateatime-outsignal.

Initially,writeavalueofNintoatimerandselectadesiredclocksource,timerwillstartcountingfromN,N+1,N+2,...throughFFFF.AnINT（TimerA/TimerB）signalisgeneratedatthenextclockafterreaching“FFFF”andtheINTsignalistransmittedtoINTcontrollerforfurtherprocessing.Atthesametime,Nwillbereloadedintotimerandstartalloveragain.TheclocksourceAisahighfrequencysourceandclocksourceBisalowfrequencysource.ThecombinationofclocksourceAandBprovidesavarietyofspeedstoTimerA.A“1”representspasssignalandnotgating.Incontrast,“0”indicatesdeactivatingtimer.TheEXT1andEXT2aretheexternalclocksources.Moreover,countercangeneratetime-outsignalforinputclocksourcetoafourbits（16levels）PWMpulsewidthcounter.AvarietyofclockdurationcanbegeneratedandexportedfromIOB8（APWMO）andIOB9（BPWMO）.

Thefollowingexampleisa3/16-durationcycle.TheAPWMOwaveformismadebyselectingapulsewidththroughPort_TimerA_Ctrl（W）[9:

6].Asaresult,each16cycleswillgenerateapulsewidthdefinedincontrolport.ThesePWMsignalscanbeappliedforcontrollingthespeedofmotororotherdevices.

Generallyspeaking,theclocksourceAandCarefastclocksourcesandsourceBcomesfromRTCsystem（32768Hz）.Therefore,clocksourceBcanbeutilizedasaprecisecounterfortimecounting,e.g.,the2Hzclockcanbeusedforrealtime