CAN XL

CAN XL provides a superior solution for data rates up to 20Mbit/s by maintaining the advantages of the CAN protocol like collision-resolution by non-destructive arbitration.

With respect to the bitrate, CAN XL fills the gap between CAN FD and 100BASE-T1 (Ethernet).

CAN XL protocol controllers are also able to perform Classical CAN and CAN FD communication.

Status

CAN XL is standardized in the ISO 11898-1:2024 (CAN CC, CAN FD, CAN XL and CAN FD light).

In addition, many other CAN related standards will be updated simultaneously to support CAN XL. Examples are the CAN Conformance Test according to ISO 16845 and the physical layer which is released as ISO 11898-2:2024.

Filling the gap between CAN FD and Ethernet

Key Protocol Features

Net data rates up to 20Mbit/s

Large data fields with up to 2048 byte enable the use of higher layer protocols like IP (Internet Protocol) and even the tunneling of complete Ethernet frames

Interoperability with CAN FD for mixed FD/XL networks

Mixed FD / XL networks

Physical Layer

CAN XL will be operable with all transceivers:

Classical CAN up to 1Mbit/s

CAN FD up to 2Mbit/s and CAN FD-SiC up to 5-8Mbit/s

CAN XL up to 20 Mbit/s