[SI-LIST] DDR-Length matching
- From: rajesh kumar <msrajesheee@xxxxxxxxx>
- To: si-list@xxxxxxxxxxxxx
- Date: Thu, 28 Apr 2011 04:54:20 -0700
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
Please help me on how to calculate the length matching tolerance .
Thanks,
Rajesh
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