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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