集成USB-瓦斯浓度报警系统-外文翻译-外文文献-英文文献

附录二原文Single-ChipUSBtoUARTDataTransfer-IntegratedUSBtransceiver;noexternalresistors；required-Integratedclock;noexternalcrystalrequired-Integrated1024-ByteEEPROMforvendorID，productID，serialnumber，powerdescriptor，releasenumber，andproductdescriptionstrings-On-chippower-onresetcircuit-On-chipvoltageregulator:3.3VoutputUSBFunctionController-USBSpecification2.0compliant;full-speed（12Mbps）-USBsuspendstatessupportedviaSUSPENDpinsAsynchronousSerialDataBUS（UART）-Allhandshakingandmodeminterfacesignals-Dataformatssupported:-Databits:5，6，7，and8-Stopbits:1，1.5，and2-Parity:odd，even，mark，space，noparity-Baudrates:300bpsto1Mbits-576Bytereceivebuffer;640bytetransmitbuffer-HardwareorX-On/X-Offhandshakingsupported-FourGPIOsignalsforstatusandcontrol-ConfigurableI/O（1.8VtoVDD）usingVIOpin-ConfigurableI/O（VDDto5V）usingexternalpull-up-RS-485modewithbustransceivercontrolVirtualCOMPortDeviceDrivers-WorkswithExistingCOMPortPCApplications-Royalty-FreeDistributionLicense-WindowsVista/XP/Server2003/2000/98SE-MacOS-X/OS-9-LinuxUSBXpress（TM）DirectDriverSupport-Royalty-FreeDistributionLicense-WindowsVista/XP/Server2003/2000-WindowsCE6.0，5.0，and4.2ExampleApplications-UpgradeofRS-232legacydevicestoUSB-UpgradeofRS-485legacydevicestoUSB-CellularphoneUSBinterfacecable-PDAUSBinterfacecable-USBtoRS-232serialadapterSupplyVoltage-Self-powered:3.0to3.6V-USBbuspowered:4.0to5.25V-I/Ovoltage:1.8VtoVddPackage-Leadfree28-pinQFN（5x5mm）OrderingPartNumber-CP2103-GMTemperatureRange:–40to+85°CSection1．SystemOverview2．AbsoluteMaximumRatings3．GlobalDCElectricalCharacteristics4．PinoutandPackageDefinitions5．USBFunctionControllerandTransceiver6．AsynchronousSerialDataBus（UART）Interface7．GPIOPins8．InternalEEPROM9．CP2103DeviceDrivers9．3．DriverCustomization9．1．VirtualCOMPortDrivers9．2．USBXpressDrivers9．4．DriverCertification10．VoltageRegulator11．RelevantApplicationNotesDocumentChangeListContactInformation1．SystemOverviewTheCP2103isahighly-integratedUSB-to-UARTBridgeControllerprovidingasimplesolutionforupdatingRS-232/RS-485designstoUSBusingaminimumofcomponentsandPCBspace．TheCP2103includesaUSB2．0full-speedfunctioncontroller，USBtransceiver，oscillator，EEPROM，andasynchronousserialdatabus（UART）withfullmodemcontrolsignalsinacompact5x5mmQFN-28package（sometimescalled“MLF”or“MLP”）．NootherexternalUSBcomponentsarerequired．Theon-chipEEPROMmaybeusedtocustomizetheUSBVendorID，ProductID，ProductDescriptionString，PowerDescriptor，DeviceReleaseNumber，andDeviceSerialNumberasdesiredforOEMapplications．TheEEPROMisprogrammedon-boardviatheUSBallowingtheprogrammingsteptobeeasilyintegratedintotheproductmanufacturingandtestingprocess．Royalty-freeVirtualCOMPort（VCP）devicedriversprovidedbySiliconLaboratoriesallowaCP2103-basedproducttoappearasaCOMporttoPCapplications．TheCP2103UARTinterfaceimplementsallRS-232/RS-485signalsincludingcontrolandhandshakingsignals，soexistingsystemfirmwaredoesnotneedtobemodified．Thedevicealsofeaturesupto（4）GPIOsignalsthatcanbeuser-definedforstatusandcontrolinformation．SupportforI/Ointerfacevoltagesdownto1.8VisprovidedviaaVIOpin．InmanyexistingRS-232designs，allthatisrequiredtoupdatethedesignfromRS-232toUSBistoreplacetheRS-232level-translatorwiththeCP2103．DirectaccessdriversupportisavailablethroughtheSiliconLaboratoriesUSBXpressdriverset．SeeforthelatestapplicationnotesandproductsupportinformationforCP2103.AnevaluationkitfortheCP2103（PartNumber:CP2103EK）isavailable.ItincludesaCP2103-basedUSB-to-UART/RS-232evaluationboard，acompletesetofVCPdevicedrivers，USBandRS-232cables，andfulldocumentation．ContactaSiliconLabs’salesrepresentativesorgotowww．silabs．comtoordertheCP2103EvaluationKit．2．AbsoluteMaximumRatings3．GlobalDCElectricalCharacteristics4．PinoutandPackageDefinitions5．USBFunctionControllerandTransceiverTheUniversalSerialBusfunctioncontrollerintheCP2103isaUSB2.0compliantfull-speeddevicewithintegratedtransceiverandon-chipmatchingandpull-upresistors．TheUSBfunctioncontrollermanagesalldatatransfersbetweentheUSBandtheUARTaswellascommandrequestsgeneratedbytheUSBhostcontrollerandcommandsforcontrollingthefunctionoftheUART．TheUSBSuspendandResumesignalsaresupportedforpowermanagementofboththeCP2103deviceaswellasexternalcircuitry．TheCP2103willenterSuspendmodewhenSuspendsignalingisdetectedonthebus．OnenteringSuspendmode，theCP2103assertstheSUSPENDandSUSPENDsignals．SUSPENDandSUSPENDarealsoassertedafteraCP2103resetuntildeviceconfigurationduringUSBEnumerationiscomplete．TheCP2103exitstheSuspendmodewhenanyofthefollowingoccur:（1）Resumesignalingisdetectedorgenerated，（2）aUSBResetsignalisdetected，or（3）adeviceresetoccurs．OnexitofSuspendmode，theSUSPENDandSUSPENDsignalsarede-asserted．BothSUSPENDandSUSPENDtemporarilyfloathighduringaCP2103reset．Ifthisbehaviorisundesirable，astrongpulldown（10k）canbeusedtoensureSUSPENDremainslowduringreset．SeeFigure6forotherrecommendedoptions．6．AsynchronousSerialDataBus（UART）InterfaceTheCP2103UARTinterfaceconsistsoftheTX（transmit）andRX（receive）datasignalsaswellastheRTS，CTS，DSR，DTR，DCD，andRIcontrolsignalsTheUARTsupportsRTS/CTS，DSR/DTR，andX-On/X-Offhandshaking．TheUARTisprogrammabletosupportavarietyofdataformatsandbaudrates．IftheVirtualCOMPortdriversareused，thedataformatandbaudratearesetduringCOMportconfigurationonthePC．IftheUSBXpressdriversareused，theCP2103isconfiguredthroughtheUSBXpressAPI．ThedataformatsandbaudratesavailablearelistedinTable8．7．GPIOPinsTheCP2103supports4user-configurableGPIOpinsforstatusandcontrolinformation．Moreinformationregardingtheconfigurationandusageofthesepinscanbefoundin“AN144:CP210xCustomizationGuide”and“AN223:PortConfigurationandGPIOforCP210x”availableontheSiliconLaboratorieswebsite．8．InternalEEPROMTheCP2103includesaninternalEEPROMthatmaybeusedtocustomizetheUSBVendorID（VID），ProductID（PID），ProductDescriptionString，PowerDescriptor，DeviceReleaseNumberandDeviceSerialNumberasdesiredforOEMapplications．IftheEEPROMisnotprogrammedwithOEMdata，thedefaultconfigurationdatashowninTable9isused．WhilecustomizationoftheUSBconfigurationdataisoptional，itisrecommendedtocustomizetheVID/PIDcombination．AuniqueVID/PIDcombinationwillpreventthedriverfromconflictingwithanyotherUSBdriver．AvendorIDcanbeobtainedfromwww．usb．orgorSiliconLaboratoriescanprovideafreePIDfortheOEMproductthatcanbeusedwiththeSiliconLaboratoriesVID．ItisalsorecommendedtocustomizetheserialnumberiftheOEMapplicationisoneinwhichitispossibleformultipleCP2102-baseddevicestobeconnectedtothesamePC.TheinternalEEPROMisprogrammedviatheUSB.ThisallowstheOEM'sUSBconfigurationdataandserialnumbertobewrittentotheCP2103on-boardduringthemanufacturingandtestingprocess．Astand-aloneutilityforprogrammingtheinternalEEPROMisavailablefromSiliconLaboratories．AlibraryofroutinesprovidedintheformofaWindows®DLLisalsoavailable．ThislibrarycanbeusedtointegratetheEEPROMprogrammingstepintocustomsoftwareusedbytheOEMtostreamlinetestingandserialnumbermanagementduringmanufacturing．TheEEPROMhasatypicalenduranceof100，000writecycleswithadataretentionof100years．USBdescriptorscanbelockedtopreventfuturemodification．9CP2103DeviceDriversTherearetwosetsofdevicedriversavailablefortheCP2103devices:theVirtualCOMPort（VCP）driversandtheUSBXpressDirectAccessdrivers．Onlyonesetofdriversisnecessarytointerfacewiththedevice．Thelatestdriversareavailableathttp://www．silabs．com/products/microcontroller/downloads．asp．9．1VirtualCOMPortDriversTheCP2103VirtualCOMPort（VCP）devicedriversallowaCP2103-baseddevicetoappeartothePC'sapplicationsoftwareasaCOMport．applicationsoftwareasaCOMport．ApplicationsoftwarerunningonthePCaccessestheCP2103-baseddeviceasitwouldaccessastandardhardwareCOMport．However，actualdatatransferbetweenthePCandtheCP2103deviceisperformedovertheUSBinterface．Therefore，existingCOMportapplicationsmaybeusedtotransferdataviatheUSBtotheCP2103-baseddevicewithoutmodifyingtheapplication．SeeApplicationNoteAN197:SerialCommunicationsGuidefortheCP210x”forExampleCodeforInterfacingtoaCP2103usingtheVirtualCOMdrivers．9．2．USBXpressDriversTheSiliconLaboratoriesUSBXpressdriversprovideanalternatesolutionforinterfacingwithCP2103devices．NoSerialPortprotocolexpertiseisrequired．Instead，asimple，high-levelapplicationprograminterface（API）isusedtoprovidesimplerCP201xconnectivityandfunctionality．TheUSBXpressforCP210xDevelopmentKitincludesWindowsdevicedrivers，Windowsdevicedriverinstalleranduninstallers，andahostinterfacefunctionlibrary（hostAPI）providedintheformofaWindowsDynamicLinkLibrary（DLL）．TheUSBXpressdriversetisrecommendedfornewproductsthatalsoincludenewPCsoftware．TheUSBXpressinterfaceisdescribedinApplicationNote“AN169:USBXpressProgrammer'sGuide．”9．3．DriverCustomizationInadditiontocustomizingthedeviceasdescribedinSection7，thedriversandthedriversinstallationpackagecanbealsobecustomized．SeeApplicationNote“AN220:USBDriverCustomization”formoreinformationongeneratingcustomizedVCPandUSBXpressdrivers．9．4．DriverCertificationThedefaultdriversthatareshippedwiththeCP2103areMicrosoftWHQL（WindowsHardwareQualityLabs）certified．ThecertificationmeansthatthedrivershavebeentestedbyMicrosoftandtheirlatestoperatingsystems（XPandVista）willallowthedriverstobeinstalledwithoutanywarningsorerrors．ThecustomizeddriversthataregeneratedusingtheAN220softwarearenotautomaticallycertified．TheymustgofirstthroughtheMicrosoftDriverResellerSubmissionprocess．ContactSiliconLaboratoriessupportforassistancewiththisprocess．10．VoltageRegulatorTheCP2103includesanon-chip5to3Vvoltageregulator．ThisallowstheCP2103tobeconfiguredaseitheraUSBbus-powereddeviceoraUSBself-powereddevice．TheseconfigurationsareshowninFigure7andFigure8．Whenenabled，the3VvoltageregulatoroutputappearsontheVDDpinandcanbeusedtopowerexternal3VDDdevices．SeeTable10forthevoltageregulatorelectricalcharacteristics．Alternatively，if3VpowerissuppliedtotheVDDpin，theCP2103canfunctionasaUSBself-powereddevicewiththevoltageregulatordisabled．Forthisconfiguration，itisrecommendedthattheREGINinputbetiedtothe3Vnettodisablethevoltageregulator．ThisconfigurationisshowninFigure9．TheUSBmaxpowerandpowerattributesdescriptormustmatchthedevicepowerusageandconfiguration．SeeApplicationNote“AN144:CP210xCustomizationGuide”forinformationonhowtocustomizeUSBdescriptorsfortheCP2103．Note:ItisrecommendedthatadditionaldecouplingcapacitancebeprovidedontheREGINinput．11．RelevantApplicationNotesThefollowingApplicationNotesareapplicabletotheCP2102．Thelatestversionsoftheseapplicationnotesandtheiraccompanyingsoftwareareavailableat:http://www．silabs．com/products/microcontroller/applications．asp．AN144:CP210xDeviceCustomizationGuide．ThisapplicationnotedescribeshowtousetheAN144softwaretoconfiguretheUSBparametersontheCP2102devices．AN169:USBXpressProgrammer'sGuide．ThisapplicationnotedescribestheUSBXpressAPIinterfaceandincludesexamplecode．AN197:SerialCommunicationsGuidefortheCP210x．ThisapplicationnotedescribeshowtousethestandardWindowsCOMportfunctiontocommunicatewiththeCP2102andincludesexamplecode．AN205:CP210xBaudRateSupport.ThisapplicationnotedescribeshowtousetheAN205softwaretoconfiguretheBaudRatealiasingfeatureontheCP2102devices.AN220:USBDriverCustomization.ThisapplicationnotedescribeshowtousetheAN220softwaretocustomizetheVCPorUSBXpressdriverswithOEMinformation.AN223:PortConfigurationAndGPIOforCP210x.ThisapplicationnotedescribeshowtousetheAN223softwaretoconfiguretheGPIOotherconfigurablepins.DOCUMENTCHANGELISTRevision0．1toRevision0．2Updated“Linux2．40”bulletonpage1．Revision0．2toRevision0．3Addedadditionalsupportedoperatingsystemsonpage1．ChangedVDDconditionsofTables2and3fromaminimumof2．7to3．0V．UpdatedtypicalandmaxSupplycurrentnumbersinTable2．UpdatedpackagedrawingsinFigure3，Figure4，andFigure5．RemovedtantalumrequirementinFigure6．ConsolidateSections9and10．AddedSection"11．RelevantApplicationNotes"onpage17．附录三译文单芯片USB至UART桥用于通用异步收发报机数据转换器的单晶片USB-集成USB收发器无需外界电阻-集成USB收发器;没有外部电阻工程与现有的COM端口PC应用程序-集成时钟无需外接晶振-1024BEEPROM用于存储厂商ID，产品ID，序列号，电源描述符，版本号，产品描述序列-单晶片电压调节器：3．3V输出USB控制功能-USB规范2．0兼容;全速（为12Mbps）-USB暂停支持通过暂停引脚异步串行数据总线器（UART）-所有握手和调制解调器接口信号-数据格式支持-数据位：5，6，7，8-停止位：1，1．5，2-奇偶校验：奇数，偶数，马克，奇偶校验无效-波特率：300bps至1Mbps-576字节的接收缓冲区;640字节的传输缓冲区-硬件或x-on/x-off握手支持-4个GPIO信号状态和控制-可配置的I/O（VDD接1．8V）使用VIO引脚-可配置的I/O（VDD接5V）使用外部上拉电阻-RS-485的模式与总线收发器控制虚拟COM端口设备驱动程序

-工程与现有的COM端口PC应用程序-免版税的分配许可-WindowsVista/XP/Server2003/2000/98SE-MacOS-X/OS-9-Linuxusbxpress直接驱动支持-免版税授权-WindowsVista/XP/Server2003/2000-WindowsCE6．0，5．0，and4．2应用举例-升级RS-232的传统设备到USB-升级RS-485的传统设备到USB-手机的USB接口电缆-PDA的USB接口电缆-USB接口与RS-232串口适配器供电电压-自供电：3．0-3．6V-USB总线供电:4．0V到5．25V-I/O口电压：VDD接1．8V封装-无铅的28引脚QFN（5×5毫米）产品序列号-CP2103-GM温度范围：-40℃～+85℃1系统概述2绝对最大额定值3全球直流电气特性4引脚和封装定义5USB功能控制器和收发器6异步串行数据总线器（UART）接口74GPIO管脚8内部的EEPROM9cp2103设备驱动程序9.1虚拟COM端口司机9.2usbxpress司机9.3司机定制10稳压器11相关应用笔记文件变更名单联络资料1系统概述该cp2103是一种高度集成的USB至UART桥控制器，提供一个简单的解决方案updatingrs-232/rs-485设计到USB用最少的元件和电路板空间。该cp2103包括一个USB2.0的全速功能控制器，USB收发器，振荡器，EEPROM中，异步串行数据总线器（UART）全调制解调器控制信号，在一个紧凑的5x5mm的QFN28封装（有时也被称为MLF"或MLP。没有其他外部USB组件所需。芯片上EEPROM，可用于定制的USB厂商ID，产品ID，产品描述字符串，电力广义，装置释放号码，并装置序号为理想为OEM应用。该EEPROM的编程系统对板载通过USB允许编程步骤，可轻松整合到产品的制造和测试过程。免版税虚拟COM端口（越共）的设备驱动程序所提供的SiliconLaboratories已经允许cp2103（免版税虚拟COM端口（越共）的设备驱动程序所提供的SiliconLaboratories已经允许cp2103型产品，以显示为一个COM端口，以PC应用。）"该cp2103UART界面实现了所有rs-232/rs-485signals，包括控制和握手信号，使现有的系统韧体无须加以修饰。该器件还具有多达（4）GPIO的信号，可用户自定义为状态和控制信息。支持输入/输出接口电压下降到1.8V，是透过VIO接脚。在很多现有的RS-32的设计，都必须以更新的设计，从RS-232的，以USB是，以取代RS-232的水平-翻译与cp2103。直接获取驱动程序支持，可以通过SiliconLaboratories的usbxpress司机一套。直接获取驱动程序支持，可以通过SiliconLaboratories的usbxpress司机一套。见获取最新应用笔记和产品支持信息，为cp2103。（评估套件为cp2103（产品编号：cp2103ek）面世。它包括一个cp2103基于usb-to-uart/rs-232评估板，制定一套完整的越共驱动装置，USB和RS-232电缆，并全部文件。联络了利用SiliconLabs的销售代表或去命令cp2103评估套件。2绝对最大额定值3全球直流电气特性4引脚和封装定义5USB功能控制器和收发器通用串行总线控制器的功能在cp2103是一个USB2.0全速器件与集成收发器和片上的匹配和上拉电阻器。USB功能控制器管理所有之间的数据传输的USB和UART的，以及指挥，要求所产生的USB主机控制器和指挥控制功能的UART的。将USB暂停和恢复信号是支持电源管理均cp2103装置以及外部电路。"该cp2103将进入暂停模式时，暂停信号，是发现上车。进入暂停模式，cp2103坚称暂停，并暂停信号。将USB暂停和恢复信号是支持电源管理均cp2103装置以及作为外部电路。该cp2103将进入暂停模式时，暂停信号，是发现上车。对进入暂停模式，cp2103坚称暂停，并暂停信号。暂停和中止也断言，经过cp2103复位，直到设备配置中的USB枚举完成了。该cp2103退出暂停模式时，下列任何一种出现：（1）恢复信号就被检测到，或产生的，（2）一个USB复位信号被侦破，或（3）器件复位发生。对出口的暂停模式，暂停，并暂停信号是断言。双方中止和暂缓发行期间cp2103复位。如果这种行为是不可取的，强烈的下拉式（10K），可以用来确保暂停仍然偏低，在上电复位。建议选择：.选择一：4.7kω拉电阻也可加入，以增加抗噪性能。选择二：4.7μF的电容器也可加入，如果电源等设备，从单晶片调节。方案三：雪崩瞬态电压抑制二极管应加上ESD保护。方案三：利用littlefuse包P/Nsp0503baht。方案四：10K下ω电阻至地面进行暂停低初始权或器件复位。6异步串行数据总线器（UART）接口该cp2103UART界面构成的TX（发射）和RX（接收）数据信号以及垃圾转运站，中旅的DSR，dtr，双氰胺，和RI控制信号。该UART的支持垃圾转运站/中华的DSR/dtr，x-on/x-off握手。该UART的编程，以支持各种数据格式和波特率。如果虚拟COM端口司机使用中，数据格式和波特率是设置在COM端口配置在PC上。如果usbxpress司机用，cp2103配置通过usbxpress空气污染指数。数据格式和波特率可上市7四个GPIO管脚该cp2103支持（4）用户可配置的GPIO引脚，可用于状态和控制信息。更多信息关于配置和使用这些引脚可以发现，在"an144：cp210x定制指南an223：端口配置和GPIO为cp210x"，可于SiliconLaboratories的网站。8内部的EEPROM该cp2103包含内部的EEPROM，可用于定制的USB厂商ID（共有），产品ID（PID控制），产品描述字符串，电力广义，装置释放的人数和设备序号作为想要为OEM应用。如果EEPROM中，是不是编程与OEM的数据，默认配置数据而定制的USB配置数据是可选的，是值得推荐的定制共有/PID控制组合。一个独特的共有/PID控制相结合，将阻止该司机从相互矛盾与其他任何USB驱动。1厂商ID，可向或硅实验室可以提供一个免费的PID为OEM产品可用于与SiliconLaboratories公司共有。委员会还建议，以定制的号，如果OEM的应用，是一个它是有可能为多cp2102基于设备连接到相同的PC。内部EEPROM的编程是通过USB。这使得OEM厂商的USB配置数据串行号码可写给cp2103对板在制造和测试过程。一个单独的实用程序编程内部的EEPROM可从SiliconLaboratories的。图书馆提供的例程在形式的一Windows®DLL文件也已经推出。这个图书馆，可以用来整合EEPROM编程步骤到定制软件所采用的OEM合作，以简化测试和序列号管理，在制造业。EEPROM允许有一个典型的耐力100000写周期的一个数据保存100年。USB描述符可被锁定，以防止日后修改。9cp2103设备驱动程序有两套设备驱动程序可用于cp2103设备：虚拟COM端口，司机及usbxpress直接获取司机。只有一组驱动程序是必要的接口与设备。最新的驱动程式/products/microcontroller/downloads.asp。9.1虚拟COM端口司机该cp2103虚拟COM端口（越共）的设备驱动程序，让cp2103基器件出现给PC的应用软件作为一个COM端口。应用软件运行于PC机上网cp2103基器件，因为这将进入一个标准的硬件COM端口。但是，实际的数据传输与PC和cp2103器件演出超过USB接口。因此，现有的COM端口申请可能会被用来转移数据通过USB向cp2103基器件无需修改应用程序。见应用说明an197：串行通讯指南，为cp210x："举例来说代码为接口，cp2103使用虚拟COM的驱动程序。9.2usbxpress司机SiliconLaboratories的usbxpress司机提供一个候补的解决方案界面与cp2103装置。无串口议定书的专门知识的需要。反之，一个