SPRUHZ7K August 2015 – April 2024 AM5706 , AM5708 , AM5716 , AM5718 , AM5718-HIREL
CAN network physical layer consists of two-wire differential bus, usually twisted pair, and provides high level of interference immunity. External CAN transceiver IC is needed to access a CAN bus by the DCAN.
Figure 24-172 shows an overview of a typical DCAN application.
Figure 24-172 DCAN Typical ApplicationTable 24-713 describes the external signals of the DCAN1 module .
| Module Signal | Device Signal | I/O(1) | Description | Value at Reset |
|---|---|---|---|---|
| CAN_RX | dcan2_rx | I | Serial data input from external CAN tranceiver | HiZ |
| CAN_TX | dcan2_tx | O | Serial data output to external CAN tranceiver | 1 |
Table 24-714 describes the external signals of the DCAN2 module .
| Module Signal | Device Signal | I/O(1) | Description | Value at Reset |
|---|---|---|---|---|
| CAN_RX | dcan1_rx | I | Serial data input from external CAN tranceiver | HiZ |
| CAN_TX | dcan1_tx | O | Serial data output to external CAN tranceiver | 1 |
The path from a module pin to device pad(s) is defined at the device I/O logic level. The control module registers assign the specific function to the device pads. For more information on control module settings, see Pad Configuration Registers of Control Module.