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Altera_Forum
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19 years ago

Multiple Memory Controllers

I am using the Stratix II and want to have two Altera DDR2 controllers on the same side of the device. I'm not sure how to go about doing this. Has anyone tried this before?
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
18 years ago

"Hence the only way to get two x64 DDR2 interfaces on one side of a 2S180F1508 is in NON-DQS mode - "Use non-migrateable DQ, DQS, and DM pins"

The the design fits, and the constraints generated by the controller can be used!

Note this means that the fastest operating frequency is 167MHz

"

>> that is what we did with two x64 DDR2 interface on top side of 2S180F1508. And

it already worked (166M) in our board.

Actually I tried to set one with DQS mode, the other with non-DQS mode. It should work but have not tested yet.