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EMAC 6488

Shailesh Patil
Prodigy 10 points


I had the following doubts regarding the EMAC in TMS320C6488

1.) Can we have the same Rx and Tx channels enabled for all the cores?

2.) Is there any limitation on number of MAC addresses that can be assigned to a single channel?

If somebody could comment on the above, I will be grateful to them.

Thanks in Advance

  • 0
    TI__Guru* 84110 points

    Perhaps you have already found answers to your questions?

    The best place to look for these answers is in the EMAC User's Guide for the DSP you are using.

    1) The eight Rx and eight Tx channels are independent from the cores so there is no "enable" for a particular core. Perhaps some more detail is needed for your question, if it has not already been addressed.

    2) The limitation on MAC addresses will be listed in the EMAC UG for your DSP. Typically, there will be 32 available MAC addresses for the receive channels, and these can be divided any way you wish among the eight Rx channels. There will be 1 MAC address per Tx channel.

  • 0 in reply to RandyP
    Prodigy 50 points

    Hello,

    Does any one has examples for using the EMAC module of TCI6488 DSP  with CSL (chip support libirray not DSP bios),

    The only availabe example is a MAC loopback example

    I checked the ALIVE register in the MDIO module its value was 0x1FFFF00 although , this value is always constant wether i connect  the ethernet cable between my PC and the board or not.

    Does any one know the cause of this?

    Thanks in advance.