[SI-LIST] Fwd: DDR-Length matching
- From: karthi keyan <karthiyen@xxxxxxxxx>
- To: si-list@xxxxxxxxxxxxx
- Date: Thu, 28 Apr 2011 16:17:17 +0530
Hi Experts,
I am working on boards having DDR interface. on layout we are
following the below groupings & length matching
Group1- Data signals,strobe,Mask with in group +/-10 mils tolerance
Group2- Add/Ctrl/Cmd/Clk--with in group +/-10mils tolerance
i am clear on groupings but on length matching i want to know how
to calculate the exact Min & max length matching tolerance .
can you please let me clear on DDR length matching?
Thanks,
Karthikeyan
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