SPRUIE9D May 2017 – May 2024 DRA74P , DRA75P , DRA76P , DRA77P
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 MCAN.
Figure 26-187 shows an overview of a typical MCAN application.
Table 26-867 describes the external signals of the MCAN module.
Module Signal | Device Signal | I/O(1) | Description | Value at Reset |
---|---|---|---|---|
MCAN_RX | mcan_rx | I | Serial data input from external CAN tranceiver | HiZ |
MCAN_TX | mcan_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 Section 20.4.6.1.1, Pad Configuration Registers of Chapter 20, Control Module.