AN228 | Application Note | Microchip Technology

AN228

Title
Title
A CAN Physical Layer Discussion
Name
Name
AN228
Date
Date
06/24/2015
Application Categories
Application Categories
Automotive / Network Systems - CAN
Peripheral / CAN
Description
Description
Many network protocols are described using the seven layer Open System Interconnection (OSI) model, as shown in Figure 1. The Controller Area Network (CAN) protocol defines the Data Link Layer and part of thePhysical Layer in the OSI model. The remaining physical layer (and all of the higher layers) are not defined by the CAN specification. These other layers can either be defined by the system designer, or they can be implemented using existing non-proprietary Higher Layer Protocols (HLPs) and physical layers.

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