SPRUJ17I March 2022 – August 2025 AM2631 , AM2631-Q1 , AM2632 , AM2632-Q1 , AM2634 , AM2634-Q1
All module instances are hereinafter referred to as MCAN module.
This section describes the external MCAN connections (environment).
The CAN network physical layer consists of two-wire differential bus, usually twisted pair, and provides high level of interference immunity. An xternal CAN transceiver IC is needed to access a CAN bus by the MCAN.
Figure 13-205 shows the MCAN typical application.
Figure 13-205 MCAN Typical ApplicationTable 13-262 describes the MCAN I/O signals.
| Module Pin | Device Level Signal | I/O(1) | Description | Module Pin Reset Value(1) |
|---|---|---|---|---|
| MCAN[0-3] | ||||
| RX | MCAN0_RX | I | Serial data input from external CAN transceiver | HiZ |
| TX | MCAN0_TX | O | Serial data output to external CAN transceiver | 1 |
| RX | MCAN1_RX | I | Serial data input from external CAN transceiver | HiZ |
| TX | MCAN1_TX | O | Serial data output to external CAN transceiver | 1 |
| RX | MCAN2_RX | I | Serial data input from external CAN transceiver | HiZ |
| TX | MCAN2_TX | O | Serial data output to external CAN transceiver | 1 |
| RX | MCAN3_RX | I | Serial data input from external CAN transceiver | HiZ |
| TX | MCAN3_TX | O | Serial data output to external CAN transceiver | 1 |
For more information about device level signals (pull-up/down resistors, buffer type, multiplexing and others), see tables Pin Attributes and Pin Multiplexing in the device-specific Data sheet.