中英文翻译--TM卡.doc

TM-CardInthissystemTM(TouchMemory)thecardtookfirstcardthiscardalsoiscalledtheinformationbuttonisAmericanDALLASCorporationspatentproduct,itusesthesingletrackagreementcommunication,throughinstantaneousbumpstouchescompletesthedataread-write,TtheMcardcontourissimilartoabuttonbattery,usesdiameter17mm,Thethick36mmbuttonshapestainlesssteeloutercoveringseal,maymounttothecard,Thekeybucklesandsointheobject.Thenotvulnerablepartortheeasyspoiledpart,tohavecarriesConvenient,theanti-hit,water-damagedguardsagainst,anti-corrosive,theanti-magneticdisturbance,guardsagainstfoldsandsoontoberemarkableThecharacteristic,issuitableforthebadenvironment.1WirecorrespondenceagreementcausesTtheMcarddepositandwithdrawaldatatobeextremelyconvenient,gentlyassoonasbumpswiththecontact,instantaneousthenRoundnumberaccordingtoinformationread-writeoperation,itsperfectsecurityaccessmode,trueGuaranteesthedatamessagetohavethequitehighsecurityreliability.TMcardtypenumerousMany,theperformanceisdiverse.UsesDS1990AinthissystemF3/F5modelsthecardtotakethekeycard,onthiscardeachchipallengraveshastheunique64binaryIDcodetotaltobepossibletoreach280000000000000tohavemaynotfalseMakesthenature,permanentengravesintheproductionprocessiswiththelasercraftonROM,andAddedtheprotector,anyattemptchangesthisnumberalltobeabletocauseCRCtoverifyTheregulationmakesamistake.Enormousenhancementsystemsecurity.TouchMemory-Cardbecauseitsshaperesemblesthebuttonthesize,takesonekindofinformationproduct,oftenIscallediButton(informationbuttonabbreviation,Italyisinformationbutton).ItisAmericanDallsthesCorporationspatentproduces(Sequencenumberwhich,oneachiButtonhaswhichthedifferentserialnumber,cannotbechanged64IDlaserinteriorcarves,hasonlyOnemaytheunderstandingitscodecapacityreach264.Itscoreisusesthesingletrackserialtransmissionagreementtotouchthetypememory1-wireTouchMemory,sealsinthebuttontypeinthestainlesssteelvessel.Thetypicalcharacteristicliesin(passive)byalinerealizesthedataReads,writesand"thestatus"therecognition,solongaswithpokesheadingentlyassoonastobump(touches),instantaneouscompletescompletelyoperates.iBttonthenproducthasbeenthroughrepeatedlyseveralmillionoperationsStillcouldguaranteepreciseisreliableread-write.ItsinstituteHassafely,isconvenient,durably,thecharacteristicButwidelyusesinfinancial,theelectroniccharge,theelectroniccardElectronsafetysystemaswellasresourcesuseauthorizationAndsooneachkindofneedinformationencryptionrecognitiondomain.IsbecauseiButtonhasthemagnetismcard,ICcardfunctionButalsohastheobvioussuperiority,itisfrequentlymanufacturedBecomesthepublictransportationvehiclebuspermitcard,thestaffchecksattendancethecard,eachkindofelectricitySub-chargecardandsoon,thegeneraldesignationistheTM-card.TheiButton®isacomputerchipenclosedina16mmthickstainlesssteelcan.Becauseofthisuniqueanddurablecontainer,up-to-dateinformationcantravelwithapersonorobjectanywheretheygo.ThesteeliButtoncanbemountedvirtuallyanywherebecauseitisruggedenoughtowithstandharshenvironments,indoorsoroutdoors.Itissmallandportableenoughtoattachtoakeyfob,ring,watch,orotherpersonalitems,andbeuseddailyforapplicationssuchasaccesscontroltobuildingsandcomputers,assetmanagement,andvariousdataloggingtasks.ThesiliconchipwithintheiButtonisprotectedbytheultimatedurablematerial:stainlesssteel.YoucandropaniButton,steponit,orscratchit.TheiButtoniswear-testedfor10-yeardurability.DS1990Aneedsthestrictagreementtoguaranteethedatatheintegritytransmission,theagreementiscomposedbyfourkindoftypessignals:Bythereplacementpulseandthereplypulseconstitutionreplacementsequence,writes0,writes1,readingaccordingto.Besidesansweringsignal,othersignalsbybuscontrolunitinitialization.AllandDS1990Acommunicationallbyinitializationsequencestart.Thebuscontrolunit(herefigureofmicroprocessor)transmits(TX)areplacementpulse(Trest,atleast480mus),thenreleasesthemainlineandentersthereceivecondition(RX),themainlinepullstheresistancethroughontosethigh.DS1,990Aexaminesthedataendtherisealongafter,enterstheshortwaitingstatus(Tpdh:15-60mus),thentransmitsareplypulse(Tpdl:60-240mus),completesthereplacementwork.DS1990Apreparestotransmitorthereceivedata.Likechart4showsforthereplacementandthereplysuccession.Oncethebuscontrolunitexaminesthereplypulse,thensendsoutROtheMorder,TMmajorcommandforexample:LamdaReadROM,thisorderpermissionbuscontrolunitreadsDS1990A8seriescodes,48forewordsnumberand8CtheRCyard.Afterorderscorrectlytoaccept,iButton(producesIDdataonthemainline；LamdaMatchROM,thisordermayuseinonthemainlinetoturnonindividuallyormanyTouchMemorycomponentsituation.The1-Wirebushasonlyasinglelinebydefinition；itisimportantthateachdeviceonthebusbeabletodriveitattheappropriatetime.Tofacilitatethis,eachdeviceattachedtothe1-Wirebusmusthaveopendrainortri-stateoutputs.The1-WireportoftheDS1996Amulti-dropbusconsistsofa1-Wirebuswithmultipleslavesattached.Atstandardspeedthe1-Wirebushasamaximumdatarateof16.3kbps.Thevalueofthepullupresistorprimarilydependsonthenetworksizeandloadconditions.Formostapplicationstheoptimalvalueofthepullupresistorisapproximately2.2k.Theidlestateforthe1-Wirebusishigh.Ifforanyreasonatransactionneedstobesuspended,thebusMUSTbeleftintheidlestateifthetransactionistoresume.Ifthisdoesnotoccurandthebusisleftlowformorethan120µs,oneormoredevicesonthebusmaybereset.All1-Wire®devicedatasheetsdescribetwosetsofcommands.ThefirstsetreferredtoasROMFunctionCommandsareusedfordeviceidentificationandselection.ThesecondsetisoftencalledMemoryFunctionCommandsbutmaycontainothernon-memoryoperations.AROMFunctionCommandmustbecompletedeachtimeadeviceisselectedtogetitreadyforaMemoryFunctionCommand.The1-WireAPIscreatedbyDallasSemiconductorutilizethesecommandstodooperationswith1-Wiredevices.Sometimesitisnotalwaysobviouswhatcommandsarebeingcalled.ThisdocumentwillmapthecommandspresentedinthedatasheetstotheAPIfunctions.WherespecificAPIfunctionsarenotavailable,atechniquewillbepresentedtotranslatethecommandsusingthegenericcommunicationsAPIfunctions.Intheusualsituation,TMandthemicrocomputerselecttwomethodstocarryonthedataexchange.OnekindisutilizesstandardserialmouthCOM1,COM2；Moreoverusestheprinterparallelmouth.Thisarticlecarriesontheintroductiontakethestringmouthwayastheexample.Inthemicrocomputer,byRS%D232standardworkCOM,usesthenegativelogical±12Vworkpowersource；ThiswithTtheMcardconnectionlevelsymbol,doesnotneedtocarryontheleveltransformation.ConnectionsoftwarewiththegreatassemblyortheClanguagecompilation,isrestrictedinthelengthonlytointroducetheprincipleofwork:Firstinitializationhypothesismicrocomputerserialmouthbaudrate；AfterthatcardissendingoutthereplacementpulsebytheporttoTtheM,connectsinparallelfashionisrepliedtheinformation；WhenTtheMcardpreparationwillbereadylatertobeallowedtodeftotheordercodetocarryonthedatatransmission.Theprogrammingkeyquestionis,establishesthemoreaccuratetimeseries.ThiscommandallowsthebusmastertoreadtheDS1996s8-bitfamilycode,unique48-bitserialnumber,and8-bitCRC.Thiscommandcanonlybeusedifthereisasingleslavedeviceonthebus.Ifmorethanoneslaveispresentonthebus,adatacollisionwilloccurwhenallslavestrytotransmitatthesametime(opendrainwillproduceawired-ANDresult).Theresultantfamilycodeand48-bitserialnumberwillresultinamismatchoftheCRC.er