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Altera_Forum's avatar
Altera_Forum
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20 years ago

Can DMA transfer one 64-bit word per clock cycle?

I am using NiosII1.1, I want to know if the DMA can transfer one 64-bit word per clock cycle.

Although in the DMA setting tab, 64-bit or even 128-bit word are selectable, I am not sure whether it transfer 64-bit one at a time or just read 32-bit word twice.

1 Reply

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

    yes , you can .

    but ..

    If you want to transfer one 64-bit word per clock cycle , both the data source and data destination must have 64-bit width