Transcription of Introduction to the Controller Area Network (CAN) (Rev. B)
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1 SLOA101B August2002 RevisedMay 2016 SubmitDocumentationFeedbackCopyright 2002 2016,TexasInstrumentsIncorporatedIntrodu ctionto the ControllerAreaNetwork (CAN) CANopenis a trademarkof CANin a trademarkof OpenDeviceNetVendorAssociation, August2002 RevisedMay 2016 Introductionto the ControllerAreaNetwork(CAN) controllerareanetwork (CAN) is ideallysuitedto the manyhigh-levelindustrialprotocolsembraci ngCANand ISO-11898:2003as cost,performance,and upgradeabilityprovidefortremendousflexib ilityin introductionto the CANfundamentals,operatingprinciples,and the implementationof a basicCANbus with TI's CANtransceiversand electricallayerrequirementsof a CANbus are discussedalongwith the importanceof thedifferentfeaturesof a TI Bit Fieldsof StandardCANand of Figures1 The LayeredISO InvertedLogicof a a a RecessiveBus of TablesDSPor ControllerApplication LayerData-LinkLayerLogic Link ControlM
Introduction to the Controller Area Network (CAN) 3 Standard CAN or Extended CAN The CAN communication protocol is a carrier-sense, multiple-access protocol with collision detection and arbitration on message priority (CSMA/CD+AMP). CSMA means that each node on a bus must wait for a prescribed period of inactivity before attempting to send a ...
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