SPRUIU1C July 2020 – February 2024 DRA821U , DRA821U-Q1
The Controller Area Network (CAN) is a serial communications protocol which efficiently supports distributed real-time control. CAN has high immunity to electrical interference. In a CAN network, many short messages are broadcast to the entire network, which provides for data consistency in every node of the system.
The MCAN module supports both classic CAN and CAN FD (CAN with Flexible Data-Rate) specifications. CAN FD feature allows high throughput and increased payload per data frame. The classic CAN and CAN FD devices can coexist on the same network without any conflict.
The device supports 20 MCAN modules:
They connect to the physical layer of the CAN network through external (for the device) transceivers. Each MCAN module supports flexible bit rates greater than 1 Mbps and is compliant to ISO 11898-1:2015.
Table 12-5194 shows MCAN allocation across device domains.
Instance | Domain | ||
---|---|---|---|
WKUP | MCU | MAIN | |
MCU_MCAN0 | - | ✓ | - |
MCU_MCAN1 | - | ✓ | - |
MCAN0 | - | - | ✓ |
MCAN1 | - | - | ✓ |
MCAN2 | - | - | ✓ |
MCAN3 | - | - | ✓ |
MCAN4 | - | - | ✓ |
MCAN5 | - | - | ✓ |
MCAN6 | - | - | ✓ |
MCAN7 | - | - | ✓ |
MCAN8 | - | - | ✓ |
MCAN9 | - | - | ✓ |
MCAN10 | - | - | ✓ |
MCAN11 | - | - | ✓ |
MCAN12 | - | - | ✓ |
MCAN13 | - | - | ✓ |
MCAN14 | - | - | ✓ |
MCAN15 | - | - | ✓ |
MCAN16 | - | - | ✓ |
MCAN17 | - | - | ✓ |
Figure 12-2727 shows the MCAN modules overview.