ISO 11992:2019

Description

This document describes the data link layer (DLL) and physical layer (PHY) for the two CAN-based network interfaces specified in the 11992-series.

The DLL sub-clauses are composed of:

– DLL protocol entity requirements;

– DLL device interface requirements; and

– DLL network system requirements.

Normally, the physical signalling sub-layer is implemented in the CAN protocol controller. The physical medium attachment sub-layer is normally implemented in the CAN transceiver or the System Base Chip (SBC). Optionally, it can comprise also additional protection circuitry. The media-dependent sub-layer comprises the connectors and the cabling.

The physical signalling (PS) sub-clauses are composed of:

– PS entity requirements;

– PS device interface requirements; and

– PS network system requirements.

The physical medium attachment (PMA) sub-clauses are composed of:

– PMA protocol entity requirements; and

– PMA device interface requirements.

The physical medium dependent (PMD) sub-clauses are composed of:

– PMD entity requirements;

– PMD device interface requirements; and

– PMD network system requirements.