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WIRELESSLANNETWORKINTERFACECONTROLLERDATASHEETRev.1.206September2005TrackID:JATR-1076-21RTL8187LRTL8187L-LFRTL8187LDatasheetWirelessLANNetworkInterfaceControlleriiTrackID:JATR-1076-21Rev.1.2COPYRIGHT©2005RealtekSemiconductorCorp.Allrightsreserved.Nopartofthisdocumentmaybereproduced,transmitted,transcribed,storedinaretrievalsystem,ortranslatedintoanylanguageinanyformorbyanymeanswithoutthewrittenpermissionofRealtekSemiconductorCorp.DISCLAIMERRealtekprovidesthisdocument“asis”,withoutwarrantyofanykind,neitherexpressednorimplied,including,butnotlimitedto,theparticularpurpose.Realtekmaymakeimprovementsand/orchangesinthisdocumentorintheproductdescribedinthisdocumentatanytime.Thisdocumentcouldincludetechnicalinaccuraciesortypographicalerrors.TRADEMARKSRealtekisatrademarkofRealtekSemiconductorCorporation.Othernamesmentionedinthisdocumentaretrademarks/registeredtrademarksoftheirrespectiveowners.USINGTHISDOCUMENTThisdocumentisintendedforthesoftwareengineer’sreferenceandprovidesdetailedprogramminginformation.Thougheveryefforthasbeenmadetoensurethatthisdocumentiscurrentandaccurate,moreinformationmayhavebecomeavailablesubsequenttotheproductionofthisguide.Inthatevent,pleasecontactyourRealtekrepresentativeforadditionalinformationthatmayhelpinthedevelopmentprocess.REVISIONHISTORYRevisionReleaseDateSummary1.02004/10/22Firstrelease.1.12005/04/25Reviseddatatransactioncontent.Addedoffset8information(Table27,page23,andTable28,page23).1.22005/09/06AddedRoHSdeclaration(seelast2pages).Addedlead(Pb)-freeandpackageidentificationinformationonpage4.Correctedsection14MechanicalDimensions,page34.RTL8187LDatasheetWirelessLANNetworkInterfaceControlleriiiTrackID:JATR-1076-21Rev.1.2TableofContents1.GENERALDESCRIPTION...............................................................................................................................................12.FEATURES..........................................................................................................................................................................23.SYSTEMAPPLICATIONS................................................................................................................................................34.BLOCKDIAGRAM............................................................................................................................................................35.PINASSIGNMENTS...........................................................................................................................................................45.1.LEAD(PB)-FREEPACKAGEIDENTIFICATION...................................................................................................................46.PINDESCRIPTIONS..........................................................................................................................................................56.1.USBTRANSCEIVERINTERFACE......................................................................................................................................56.2.EEPROMINTERFACE.....................................................................................................................................................56.3.POWERPINS....................................................................................................................................................................56.4.LEDINTERFACE..............................................................................................................................................................66.5.ATTACHMENTUNITINTERFACE......................................................................................................................................66.5.1.RTL8225RFChipset..............................................................................................................................................66.5.2.RTL8255RFChipset..............................................................................................................................................76.6.CLOCKANDOTHERPINS.................................................................................................................................................87.CPUACCESSTOENDPOINTDATA..............................................................................................................................97.1.CONTROLTRANSFER.......................................................................................................................................................97.2.BULKTRANSFER.............................................................................................................................................................98.USBREQUEST..................................................................................................................................................................108.1.GETDESCRIPTOR-DEVICE..........................................................................................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