[SI-LIST] DDR2 eye-diagram masks creation
- From: danko miocinovic <ddankomm@xxxxxxxxx>
- To: "si-list@xxxxxxxxxxxxx" <si-list@xxxxxxxxxxxxx>
- Date: Tue, 9 Oct 2012 00:23:38 -0700 (PDT)
Dear Experts,
I am doing some verification of LPDDR2 memories and my question is about
creating eye-diagrams. I got some material from Agilent but it gives not enough
details.
How do you create eye-diagram mask, what are the boundaries? If we imagine the
central romboid of a mask, I am interested if there is some detailed tutorial
about setting those boundaries.
If I have e.g. 533 memory and I know exactly what the frequency is, I can
calculate the UI x-size and easily create it.
What are boundaries for Y coordinates in this central part (grayed-out area),
how to create them? Do I put some minimal or maximal values there (maximum
values sound as the worst case)?
I hope I was clear enough about what I would like to know, if not I could
provide more info.
Thank you.
Kind regards,
Danko Miocinovic
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