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Altera_Forum
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17 years ago

How to assign the VREF pin?

Hi, I use ddr-core v7.2 sp3 in my design. It assigns dq, dqs, dm pins in bank6. I set other ddr pins in bank5. After compilation I check the pin-out file and find that VREF pins of bank6 are set a...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
17 years ago

Vref is used by SSTL inputs and bidirectional pins only. You seem to have only outputs in bank 5. However, you should the pins connect according to the Quartus pinout file in case of doubt.