【英文标准名称】:Informationtechnology-Intelligentperipheralinterface-Part4:Devicegenericcommandsetformagnetictapedrives(IPI-3tape)
【原文标准名称】:信息技术.智能外围接口.第4部分:磁带驱动用设备通用命令集(IPI-3磁带)
【标准号】:ISO/IEC9318-4-2002
【标准状态】:现行
【国别】:国际
【发布日期】:2002-12
【实施或试行日期】:
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/IECJTC1
【标准类型】:()
【标准水平】:()
【中文主题词】:数据处理;信息技术;信息处理;指令集;网络互连;信息交换;总论;磁带;信息交流;控制规程;计算机外部设备;通信规程;接口(数据处理);外围设备
【英文主题词】:Commandset;Communicationprocedures;Computerperipheralequipment;Controlprocedures;Dataprocessing;Generalsection;Informationexchange;Informationinterchange;Informationprocessing;Informationtechnology;Interfaces(dataprocessing);Magnetictapeunits;Magnetictapes;Networkinterconnection;Peripheralequipment
【摘要】:ThispartofISO/IEC9318describesthelogicallevel(genericlevel)interfacefortapedrivesanditprovidesadefinitionofthedevice-genericportionofafamilyofstandardscalledtheIntelligentPeripheralInterface(IPI).Thepurposeofthisstandardistofacilitatethedevelopmentandutilizationofanintelligentinterfacewhichpermitstheinterconnectionofmultipleperipheraltypessuchasdisk,tapeandcommunicationstoacontroller.TheintentoftheIPIistoisolatethehost(CPU),bothhardwareandsoftware,fromchangesinperipheralsbyprovidinga"function-generic"commandsettoallowtheconnectionofmultipletypesofperipherals(disks,printers,tapes,communications).Tosmooththetransitionfromthecurrentmethodstothegenericapproach,theIPIsupportsdevice-specificcommandsetstoaidinbridgingthegapbetweenthetwoapproaches.Toaccomplishthissetofgoals,thedesignoftheIPIincludesdevice-specificanddevice-genericcommandsets.Thedevice-specificcommandsetprovides:-device-orientedcontrol;-physicaldataaddressing;-timingcriticaloperations;-lowerdevicecost.Thedevice-genericcommandsetprovidesahigherleveloffunctionalityandportability.Itincludes:-host/deviceindependence;-logicaldataaddressing;-timingindependence;-commandqueuingcapability.Asystemisnotrestrictedtotheuseofonelevelofcommandsetortheother.Itispossiblethatbothlevelsofcommandsetswillbeutilizedwithagivensystem'sarchitecturetobalancesuchparametersassystemperformance,costandperipheralavailability.Itisalsopossibleforthehosttoprovideforthemigrationfromdevice-specifictodevice-genericlevelswhilestillretainingthesamephysicalinterface.TheIPIstandardsfamilyincludesthedefinitionofahighperformance,general-purposeparallelperipheralinterface.However,thedevice-genericcommandsetmayalsobetransportedoverothernon-IPIphysicalinterfaces.ANSIX3.291:1997contains"mappings"totheHigh-PerformanceParallelInterface(HIPPI)andFibreChannel(FC)aswellastotheIPIEnhancedPhysicalInterface.The"mappings"arenotcontainedinthisdocument.
【中国标准分类号】:L65
【国际标准分类号】:35_200
【页数】:72P;A4
【正文语种】:英语