SPRUIU1C July 2020 – February 2024 DRA821U , DRA821U-Q1
The MCU_MCAN[0-1] and MCAN[0-17] modules are hereinafter referred to as MCAN module.
This section describes the MCAN external connections (environment).
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 12-2728 shows the MCAN typical application.
Table 12-5195 describes the MCAN I/O signals.
Module Pin | Device Level Signal | I/O(1) | Description | Module Pin Reset Value(1) |
---|---|---|---|---|
MCU_MCAN[0-1] | ||||
RX | MCU_MCAN0_RX | I | Serial data input from external CAN transceiver | HiZ |
TX | MCU_MCAN0_TX | O | Serial data output to external CAN transceiver | 1 |
RX | MCU_MCAN1_RX | I | Serial data input from external CAN transceiver | HiZ |
TX | MCU_MCAN1_TX | O | Serial data output to external CAN transceiver | 1 |
MCAN[0-17] | ||||
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 |
RX | MCAN4_RX | I | Serial data input from external CAN transceiver | HiZ |
TX | MCAN4_TX | O | Serial data output to external CAN transceiver | 1 |
RX | MCAN5_RX | I | Serial data input from external CAN transceiver | HiZ |
TX | MCAN5_TX | O | Serial data output to external CAN transceiver | 1 |
RX | MCAN6_RX | I | Serial data input from external CAN transceiver | HiZ |
TX | MCAN6_TX | O | Serial data output to external CAN transceiver | 1 |
RX | MCAN7_RX | I | Serial data input from external CAN transceiver | HiZ |
TX | MCAN7_TX | O | Serial data output to external CAN transceiver | 1 |
RX | MCAN8_RX | I | Serial data input from external CAN transceiver | HiZ |
TX | MCAN8_TX | O | Serial data output to external CAN transceiver | 1 |
RX | MCAN9_RX | I | Serial data input from external CAN transceiver | HiZ |
TX | MCAN9_TX | O | Serial data output to external CAN transceiver | 1 |
RX | MCAN10_RX | I | Serial data input from external CAN transceiver | HiZ |
RX | MCAN10_RX | I | Serial data input from external CAN transceiver | HiZ |
TX | MCAN11_TX | O | Serial data output to external CAN transceiver | 1 |
RX | MCAN11_RX | I | Serial data input from external CAN transceiver | HiZ |
TX | MCAN12_TX | O | Serial data output to external CAN transceiver | 1 |
RX | MCAN12_RX | I | Serial data input from external CAN transceiver | HiZ |
TX | MCAN13_TX | O | Serial data output to external CAN transceiver | 1 |
RX | MCAN13_RX | I | Serial data input from external CAN transceiver | HiZ |
TX | MCAN14_TX | O | Serial data output to external CAN transceiver | 1 |
RX | MCAN14_RX | I | Serial data input from external CAN transceiver | HiZ |
TX | MCAN15_TX | O | Serial data output to external CAN transceiver | 1 |
RX | MCAN15_RX | I | Serial data input from external CAN transceiver | HiZ |
TX | MCAN16_TX | O | Serial data output to external CAN transceiver | 1 |
RX | MCAN16_RX | I | Serial data input from external CAN transceiver | HiZ |
TX | MCAN17_TX | O | Serial data output to external CAN transceiver | 1 |
RX | MCAN17_RX | I | Serial data input from external CAN transceiver | HiZ |
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 Datasheet.