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TDA4VE-Q1: [TDA4VMEco] Gigabit Ethernet MAC Query

Jihoon Kim
Intellectual 450 points
Part Number: TDA4VE-Q1

Hi TI,

We are using 2 ports RGMII and they each are connecting another systems using PHY IC.

Can TDA4VMEco do as a switch about 2 ports of RGMII?
(Act like a ethernet switch)

We want to receive data using MCU_RGMII(MCU domain) port and just transmit (like bypass) data to RMII(MAIN domain) port.
and also vice versa.

And Could you explain what is the 'CPSW' briefly?

Best regards,

  • 0
    TI__Guru 63920 points

    Hi,

    Jihoon Kim said:
    Can TDA4VMEco do as a switch about 2 ports of RGMII?
    (Act like a ethernet switch)

    Its a CPSW2G, which is having two ports one is internal Host Port and one is for external connection via RMII/RGMII.

    CPSW2G in Main domain is separate from CPSW2G in MCU Domain. Both are independent.

    Jihoon Kim said:
    We want to receive data using MCU_RGMII(MCU domain) port and just transmit (like bypass) data to RMII(MAIN domain) port.
    and also vice versa.

    Which is not possible internally as both CPSW2G's are independent.

    You can perform this by running MCU CPSW2G & Main CPSW2G under Linux A72 and define network rules for forwarding the packets from one network interface to other.

    Or If you are using R5F cores, then use IPC between MCU CPSW2G running core and Main CPSW2G running core (as single R5F core can't operate both CPSW instances).

    Jihoon Kim said:
    And Could you explain what is the 'CPSW' briefly?

    CPSW in TDA4VE is CPSW2G, It can support TSN features, filtering of packets, rate limiting etc..
    But it has only one external port for connecting to external network.

    Best Regards,
    Sudheer