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PTam's avatar
PTam
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3 years ago

Triple-Speed Ethernet Megacore

Does this core require -7 speed grade on a Cyclone IV GX to meet timing or it will work for a slower -8 part?

UG-01008 2015.06.15 Table 1-4 Cyclone IV GX Performance and Resource Utilization only mentioned -7 and not -8. Because of device shortage, I am inquiring to see if I can switch from -7 to -8. I am using the EP4CGX150CF23 which is the biggest part within the family and speed is usually worst for bigger part.

If the corollary is true, can it runs a 1G only without the extra baggage of 10/100?

Thanks.

2 Replies

  • paveetirrasrie_Altera's avatar
    paveetirrasrie_Altera
    Icon for Frequent Contributor rankFrequent Contributor
    3 years ago

    Hi Patrick Tam,


    According to TSE UG Table 14, it says the speed grade is -7. I would suggest you to use device with

    speed grade -7 as it might have some timing issue if use slower speed.


    Regards,

    Pavee


  • paveetirrasrie_Altera's avatar
    paveetirrasrie_Altera
    Icon for Frequent Contributor rankFrequent Contributor
    3 years ago

    We do not receive any response from you to the previous question/reply/answer that I have provided. This thread will be transitioned to community support.

    If you have a new question, feel free to open a new thread to get the support from Intel experts.

    Otherwise, the community users will continue to help you on this thread.

    Thank you.