Octa rank (2S4Rx4) 3DS memory EMIF

[ushermark]

Hello.

I am trying to find correct parameters for EMIF calibration stage. Right now, I have HMABAGR7A4R4N-VN SK Hynix RAM. It has 8Rx4(or 2S4Rx4) memory organization. However, I cannot find a template design in Quartus Prime Pro v21.1.0 Build 169. I can see only 2S2Rx4 samples. Does Intel FPGAs support Octa rank memories?

Best regards,

Mark

[AdzimZM_Intel · Accepted solution]

Hi Mark,

You can check the device memory support in External Memory Interface (EMIF) Spec Estimator. Link: https://www.intel.com/content/www/us/en/support/programmable/support-resources/support-centers/emif-spec-estimator.html

You can choose the device that you want to use in Device Family box and select the Memory Format & Topologies.

Regards,

Adzim

[ushermark]

Hello Adzim,

As far as I understood, there are FPGA that supports quad-rank memories and in order to support octa-rank memory, it must be 3DS that is supported by FPGA like Agilex with the type of 2C4Rx4. Am I correct?

Best regards,
Mark

[AdzimZM_Intel]

Hi Mark,

I think the architecture of the octa-rank memory can be any of non-3DS and 3DS. But maybe the trend nowadays that want to reduce the area and have a huge density, the manufacturers have designed in that way.

Regards,

Adzim

[AdzimZM_Intel]

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