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Altera_Forum's avatar
Altera_Forum
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12 years ago

Arria V memory controller: Hard vs. soft

I'm currently wondering, why the Arria V hard memory controller for DDR3 memory only works up to 533 MHz, and the soft memory controller is able to go up to 667 MHz. Would have expected the other way round. Why is it like this?

1 Reply

  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    12 years ago

    a 1/4 mem controller is avaliable. and hmc works at full rate only.