CAN bus specifications
CAN bus
Article REF: S8140 V2
CAN bus specifications
CAN bus

Authors : Ahmed RACHID, Frédéric COLLET

Publication date: January 10, 2020 | Lire en français

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2. CAN bus specifications

2.1 ISO layers and CAN bus

The standard ISO 11519 of the CAN bus specifies :

  • in part A, an 11-bit identification field ("standard" format);

  • in part B, a 29-bit identification field ("extended" format).

Note: in this article, only the standard format will be presented; the difference with the extended format will only concern the size of the identifier.

This standard defines the physical layer, or layer 1 in the ISO sense of the term, which is responsible for defining the signal on the media, the electrical interface and bit coding, and layer 2,...

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