Currently, I am working on Intel Galileo Gen 2 board and will have plan to design custom board based on Intel Quark x1000 SoC for my product.
I have looked into Intel Quark x1000 SoC Data-sheet and found that it has been mentioned to use Data Width x8 DDR3 memory only. Also, There are total 2 DDR3 x8 Data Width supported memories are used into Intel Galileo Gen 2 Kit.
13.2.1 System Memory Technology Supported
The system memory controller supports the following DDR3 Data Transfer Rates and
DRAM Device Technologies:
• DDR3 Data Transfer Rate: 800 MT/s
• DDR3 (1.5V DRAM interface I/Os)
• DDR3 x8 memory modules
So, would anyone please confirm that I need to use only x8 Data Width supported DDR3 memory with Intel Quark x1000 SoC? Also, Do I need to use DDR3 memory in multiple of 2 or is it ok if I will use single x8 Data Width supported DDR3 memory for my custom board?
Please let me know if anyone has any idea or information about that.
it depends on your readiness to update all software to support x16 DRAM data width.
Official Intel answer on your question may be found in this document: http://www.intel.com/content/www/us/en/support/processors/embedded-processors/000008054.html Specification Update for Intel® Quark™ SoC X1000
Thanks for Quick Reply.
As per above specification clarifications, its risky or not feasible to use x16 DDR3 memory with Intel Quark x1000 SoC. is ii correct?
Also we are planning to use only single DDR3 memory instead of multiple DDR3 memory to reduce total cost of our custom product based on Intel Quark x1000 SoC. so, would you please confirm that do I need to use only x8 DDR3 memory with intel x1000 SoC?
Please let me know your feedback on this as quickly as possible.
I looked for this information in the Quark datasheet from August 2015. The information you're looking for can be found in Table 80 and Table 81. See the image below.
The answer for your first question is yes, it's recommended you only use x8 data width DRAM devices, as shown in Table 80. For the second question you can look at Table 81. For each DRAM chip with a certain density you have the number of DRAM devices per rank. It's recommended you follow the specifications of the datasheet and use 2 DRAM devices per rank as described in Table 81.
Hi Sergio & xbolshe
I am Harsh from Hardware Domain; Working with Ritesh.
My quick concerns are Below
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Thanks for Reply.
Its enough informations for us to choose DDR3 memory for our custom Intel Quark x1000 SoC based board. still, I will let you know if need any help regarding this in future.