Transcription of CAN with Flexible Data-Rate
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CAN with Flexible Data-RateSpecificationVersion (released April 17th, 2012)FD Copyright 2011, Robert Bosch GmbH, Robert Bosch Platz 1, 70839 Gerlingen, GermanyApril 2012page 1 RecitalThe acceptance and introduction of serial communication to more and more applica-tions has led to increasing demand for bandwidth in CAN communication and causedsystem developers to look for alternative communication options in certain applications can be realized more comfortably with the new protocol CAN FDthat allows data rates higher than 1 MBit/s and payloads longer 8 bytes per FD shares the physical layer, with the CAN protocol as defined in the BOSCHCAN Specification The frame format however, is different. There are two new con-trol bits in the can fd frame, the first enabling the new frame format with different datalength coding and the second optionally switching to a faster bit rate after the arbitrationis decided.
according to the ISO/OSI Reference Model. Layered Architecture of CAN FD according to the OSI Reference Model The scope of this specification is to define the MAC sublayer and a small part of the LLC sublayer of the Data Link Layer as well a part of the Physical Layer and to describe the consequences of the CAN protocol on the surrounding layers.
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