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Altera_Forum's avatar
Altera_Forum
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16 years ago

Stratix II Digitally Controlled Impedance

Hello, I was wondering if anyone had problems using Digitally Controlled Impedance on the Stratix II? If anyone has experience with or comments on DCI, please let me know.

Thanks,

joe

3 Replies

  • Altera_Forum's avatar
    Altera_Forum
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    16 years ago

    Can you clarify, which Stratix II feature you'tre referring to? DCI or digitally controlled impedance isn't a used term in Stratix II or other Altera documents, as far as I know.

  • Altera_Forum's avatar
    Altera_Forum
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    16 years ago

    Hello, thanks for responding to my post. I probably should have said "on-chip" termination. I did a search the only the information I found was http://www.altera.com/literature/an/an384.pdf. I email a vendor about on-chip termination and they mentioned DCI (Digitally Controlled Impedance). I guess I misunderstood him. I co-worker was using on-chip termination and it seems not to be working and I was trying to help.

  • Altera_Forum's avatar
    Altera_Forum
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    16 years ago

    On chip serial termination, which is addressed in the said application note, is working fine with all newer Altera FPGAs, I think. So you may want to clarify in which regard it's not working for your colleague?