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Altera_Forum
Honored Contributor
13 years agoDDR3 discret component skew question
Hi all, I'm designing a new board based on an ARRIA V with 2 DDR3 component. Both of them are x16 DQ. I routed CLK, address and command as T-topology. I want to use the Hard External Memory Int...
Altera_Forum
Honored Contributor
13 years agoYou should treat DM as part of your DQS group. I quickly entered some example values in Altera's Board Skew Parameter Tool spreadsheet. The result is attached. The spreadsheet and other documentation is located at the bottom of the page http://www.altera.com/technology/memory/mem-index.jsp (http://www.altera.com/technology/memory/mem-index.jsp)
https://www.alteraforum.com/forum/attachment.php?attachmentid=7447