3.17. CAN Interface

Pin	Signal	Description	type	I/O
76	CAN1-TX	This is the transmit signal to the CAN bus transceiver.	VDDIO	O
81	CAN1-RX	This is the receive signal from the CAN bus transceiver.	VDDIO	I
34	CAN2-TX	This is the transmit signal to the CAN bus transceiver.	VDDIO	O
36	CAN2-RX	This is the receive signal from the CAN bus transceiver.	VDDIO	I
Module		Remark
TX27, TX51, TX8M		Not available – default functions are used on these pins.

Some TX modules provides a FlexCAN communication controller that implements the CAN protocol according to the CAN 2.0B protocol specification. The CAN protocol was designed primarily (but not solely) to meet requirements suitable for a serial data bus in vehicle applications, including: real-time processing, reliable operation in the EMI environment of a vehicle, cost-effectiveness, and sufficient bandwidth. A CAN Transceiver is needed on the baseboard to connect the system to the CAN bus. The Texas Instruments SN65HVD23x operates with a single 3.3V supply and can be connected directly to the 3.3V TX modules: