Forum Discussion

Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

DDR2 DQSn Pin Question

Hi, All I am using Cyclone III and DDR2 as memory, I found there is no DQSn Pin in CycloneIII device. So how to connect DQSn pin in DDR2 memory device. Connect to Vtt=0.9V or GND, or somewhere...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

Cyclone III documentation says that Differential SSTL is only supported on dedicated clock input and dedicated PLL output pins.

Thus, I'm afraid that, no, you can't use a differential DQS in a Cyclone III.