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Tiva™︎ with 2 Ethernet supporting alternative?

Furkan Fehmi Sefiloglu
Expert 3118 points

Hi Team,

Can you please check and advise with best alternatives we can offer here?

"

we are looking for an MCU with two Ethernet interfaces, where we can easily use the TM4C software we are working with. 

"

Thanks in advance

Best Regards

Furkan Sefiloglu

  • 0
    TI__Guru*** 135355 points

    Hi Furkan,

    I don't really know of any way to do this beyond having a second chip as an external Ethernet MAC & PHY. This is not something we have any collateral or support for.

    Best Regards,

    Ralph

  • 0 in reply to Ralph Jacobi
    TI__Expert 3118 points

    Hi Ralph,

    Do you think if we can support 2 Ethernet with different device family from TIs complete MCU/MPU portfolio?

    Thanks in advance

    Best Regards

    Furkan 

  • 0 in reply to Furkan Fehmi Sefiloglu
    TI__Guru*** 135355 points

    Hi Furkan,

    I'm not familiar with the peripheral sets of other TI MCU/MPU options, I'm pretty focused on TM4C. I would recommend looking at the parametric tool to see if any devices call out multiple Etherner ports.

    Best Regards,

    Ralph Jacobi

  • +1 in reply to Furkan Fehmi Sefiloglu
    Guru 92251 points
    Furkan Fehmi Sefiloglu said:
    Do you think if we can support 2 Ethernet with different device family from TIs complete MCU/MPU portfolio?

    I'm not aware of a MCU which supports dual Ethernet ports. (TMS320F2838x devices have one Ethernet port and an EtherCAT slave but an EtherCAT slave can't run a standard network stack)

    The Processors – Products selector does allow to search for processors with multiple Ethernet ports. Guess a Sitara AM335x with a single Cortex-A8 is the lowest spec processor with dual Ethernet ports, which could allow some reuse of software developed for a Tiva albeit the peripherals are different.

    Does the customer have any constraints for cost / power consumption / size?

    A Sitara processor will likely cost most / consume more power / need more supporting external components than a Tiva. A Sitara processor will need external flash to boot from, but depending upon the size of the software may be able to use internal SRAM rather than requiring external RAM.

  • +1 in reply to Chester Gillon
    Guru 92251 points
    Chester Gillon said:
    I'm not aware of a MCU which supports dual Ethernet ports.

    I have just noticed the AM243x SitaraTm Microcontrollers which are currently in preview. They have Cortex®-R5F and Cortex-M4F cores.

    There is on-chip SRAM, but no internal flash.

    For Ethernet these have:

    • 1× Integrated Ethernet switch supporting up to 2 external ports (CPSW3G)
    • 2× Gigabit Industrial Communication Subsystems (PRU_ICSSG)