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:
