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:

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