ISO 20794‑3 is part three of the multi-series standard that specifies the OSI transport layer and network layer by means of services and protocols.
They can be used by different applications.
The transport layer:
The network layer:
Note-
The transport layer protocol is not used for normal communication except to map the service interface parameters between lower and upper OSI layers.
The network layer is not used for normal communication except to map the service interface parameters between lower and upper OSI layers.
ISO 20794‑3 on transport and network layer is useful for:
CXPI is an automotive low-speed single-wire network. It is an enabler for reducing vehicle weight and fuel consumption by reducing wire counts to simple devices like switches and sensors.
CXPI serves as and is designed for automotive control applications, for example, door control group, light switch, and HVAC (Heating Ventilation and Air Conditioning) systems.
ISO 20794‑3 describes the transport layer and network layer for the clock extension peripheral interface (CXPI). The transport layer and network layer helps to
ISO 20794‑3 specifies the service interface parameters and data types, which are used by the transport and network layer services.
ISO 20794-3