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TDA4VE-Q1: Main domain-MCU domain communication

Arumugam Elumalai
Intellectual 365 points

Part Number: TDA4VE-Q1
Other Parts Discussed in Thread: TDA4VL

Tool/software:

Hi,

We will be using the TDA4VMidEco/TDA4VL/TDA4AL device in our design. The SOC Main-Domain and MCU domain RGMII interface is currently interfaced through Ethernet switch. But we are planning to use the system without Ethernet switch also. In that case, how the data transfer will happen between the MCU domain -Main domain (ignore SPI interface data transfer due to lower data transfer limit). Is there a virtual RGMII interface is available between Main domain to MCU domain. 

Should we short the RGMII connection between MCU-Main externally. If so, how the MCU domain RGMII interface will be interfaced to the External Vehicle Ethernet PHY.

Would you pls provide your reply on this?

Thanks-Arumugam

  • 0
    TI__Guru* 79480 points

    Hi,

    Arumugam Elumalai said:
    But we are planning to use the system without Ethernet switch also. In that case, how the data transfer will happen between the MCU domain -Main domain (ignore SPI interface data transfer due to lower data transfer limit).

    You can use IPC to transfer the data between them. Here, you can pass the DDR address space in IPC to other domain, as DDR is accessible other domain can read DDR directly no need to pass whole ethernet data.

    Arumugam Elumalai said:
    Is there a virtual RGMII interface is available between Main domain to MCU domain. 

    No.

    Arumugam Elumalai said:
    Should we short the RGMII connection between MCU-Main externally. If so, how the MCU domain RGMII interface will be interfaced to the External Vehicle Ethernet PHY

    If you short externally Main & MCU RGMII, External Vehicle Ethernet PHY can't be able to connect to it.

    Best Regards,
    Sudheer