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Altera_Forum's avatar
Altera_Forum
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15 years ago

How to give phase shift to dqs signal.

Hi, I am working on NAND flash controller IP. The nand flash gives edge align data with DDR during read operation. I have used altera bidirectional ddio. I want to make this edge align data to cen...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

Thanks for your reply.

So you mean to say that I have to sample dqs clock at higher frequency and make it centre aligned right? By trial and error method I have to do this or there is any equation like I can use 2x or 3x clock then dqs.One more thing Nand Flash Device supports different operation modes in which dqs frequency is different for eatch mode.

Regards,

Kruepsh