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Altera_Forum
Honored Contributor
Honored ContributorCan I implement 8 DDR2 memory controller in a S4?
Hi All, A quick one, has anyone implement 8 DDR2 memory controller in a Stratix 4? What were the issues you faced? What worked? & What didn't work? thanks in advance, Hippi Chik
Altera_ForumHonored Contributor
Honored ContributorI have not done it. May I ask which part you'll be using? Basic things to remember:
1 - I/O count 2 - DLLs. You'll have to share the DLLs to get up to that number 3 - PLLs. Unless you get creative, you're going to consume 8 PLLs. If you implement the regular DDR2 controller rather than the High Performance controller, you might be able save on this. Do you really need 8 separate controllers or could you have 4 controllers with double the width? SoPC builder and the Avalon fabric makes it very easy to connect multiple components to a single DDR2 controller. Jake
