IMX6ULL and DDR3L frequency related query?

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IMX6ULL and DDR3L frequency related query?

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ramesh6663
Contributor III

In the EVK design have 1 DDR3 DRAM chip which is DDR3-1600. However, the datasheet of iMX6ULL says it only support DDR3-800, which means the bus frequency can only be 400Mhz. I am not sure how to use a higher speed memory with a lower speed CPU. When write data, that may be OK. But when read data, the data strobe is sent by DDR3-1600, which should be 800Mhz. How does it work with iMX6ULL 400Mhz bus frequency?

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joanxie
NXP TechSupport
NXP TechSupport

for more detailed information about this, pls refer to the document as below:

https://community.nxp.com/docs/DOC-333791 

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