2S2Rx8 (3DS) RDIMM EMIF IP calibration - 2S2Rx8 (3DS) RDIMM EMIF IP calibration Hello. I am wonder if it is possible to pass EMIF RAM calibration on Arria 10 FPGA for 2S2Rx8 ECC memory using non-3DS type like 2Rx8 RDIMM ECC. I know that Arria 10 doesn't support 3DS memories, but the only difference seems to be in Chip ID signal (C0...C2). Therefore, can I overcome this restriction or 3DS memories use different calibration algorithms? Memory sample used for tests: Micron MTA72ASS8G72PSZ-2S6. Best regards, Mark Replies: Re: 2S2Rx8 (3DS) RDIMM EMIF IP calibration I’m glad that your question has been addressed, I now transition this thread to community support. If you have a new question, feel free to open a new thread to get the support from Intel experts. Otherwise, the community users will continue to help you on this thread. Thank you. Replies: Re: 2S2Rx8 (3DS) RDIMM EMIF IP calibration Hi Mark, "Is it possible to implement own hard memory controller in Quartus project? Or it is a part of hardware specification for FPGA?" Yes you can implement your own memory controller as soft memory controller with hard PHY. In the General tab of EMIF IP, there is a configuration option that allow you to choose a Hard PHY and Hard Memory Controller. Somehow it's depends on memory standard as well. Regards, Adzim Replies: Re: 2S2Rx8 (3DS) RDIMM EMIF IP calibration Hello Adzim, I do have a follow-up question. Is it possible to implement own hard memory controller in Quartus project? Or it is a part of hardware specification for FPGA? Best regards, Mark Replies: Re: 2S2Rx8 (3DS) RDIMM EMIF IP calibration Hi Mark, Thank you for your question. As you well known that the Arria 10 DDR4 does not support 3DS memory. I already check with engineering regarding this matter and they have feedback with below point. This is due to the Arria 10 does not have support for the Chip ID bits required. Plus the hard memory controller does not support 3DS and the Chip ID bits. Regards, Adzim