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Altera_Forum
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14 years ago

Which pins for ethernet transmitter in Cyclone IV GX?

Hello everyone,

I have an ethernet design which I got from internet with the outputs Ethernet_TDp, Ethernet_TDm. I thought the compatible pins for the outputs would be C1 and C2, but their I/O Standard is 1.4-V PCML which is not supported by default I/O Standard. Can anyone tell me how to resolve this isue?

5 Replies

  • Altera_Forum's avatar
    Altera_Forum
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    As far as I know, if you are using the dedicated tranisceiver pins, the transmitter I/O standard is 1.5V PCML while the receiver supports multiple I/O standards including 1.4V PCML.

    You can check out the I/O standards in the data sheet or the handbook (i forgot which one had it).
  • Altera_Forum's avatar
    Altera_Forum
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    There is 1.5V for the voltage level of the data going down the ethernet cable?

  • Altera_Forum's avatar
    Altera_Forum
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    I find file "shematic in install folder" it show detail shematic. I remember having. good luck

  • Altera_Forum's avatar
    Altera_Forum
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    --- Quote Start ---

    I find file "shematic in install folder" it show detail shematic. I remember having. good luck

    --- Quote End ---

    I searched every where, but I could not find it. Can you tell me the specific path? :D