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Konrad's avatar
Konrad
Icon for New Contributor rankNew Contributor
5 years ago

Tripple Speed Ethernet (tse) Avalon-ST interface format

I am using the tse in small mac mode for a fixed 100M only connection. The project is in Quartus 16. I am a bit confused as to how the avalon-ST interface works. I have read the avalon-ST user gui...
Deshi_Intel's avatar
Deshi_Intel
Icon for Regular Contributor rankRegular Contributor
5 years ago

HI,


If you are using datawidth = 32 bits then you must use "ff_tx_mod[1:0]" so called empty signal to mask out invalid/extra data transfer in last data packet sent.


Else you can also consider to use datawidth = 8 bits to give you more flexibility in taking care of last data packet transaction issue. Then you will not face the problem anymore.


Thanks.


Regards,

dlim


  • Konrad's avatar
    Konrad
    Icon for New Contributor rankNew Contributor
    5 years ago

    OK, I have re-read the user guide and figured out I can assert Start of Packet (SOP) and End of Packet (EOP) at the same time if the packet is 4 bytes or less.