I.mx 8 Mini maximum RAM size?

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I.mx 8 Mini maximum RAM size?

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ivo_kamalis
Contributor I

What is maximum RAM size SOC supports? I am planning to have 4 chips in 2 rank system? Is it 8 GB (4 pcs 16Gb 16bit modules)?

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igorpadykov
NXP TechSupport
NXP TechSupport

Hi Ivo

for ddr memory support one can look at sect.2.1.1.3, 2.1.2 Cortex-A53 Memory Map,

sect.9.2.1.2 Features, sect.9.3.1.1 Features

i.MX 8M Mini Applications Processor Reference Manual

Best regards
igor
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igorpadykov
NXP TechSupport
NXP TechSupport

Hi Ivo

for ddr memory support one can look at sect.2.1.1.3, 2.1.2 Cortex-A53 Memory Map,

sect.9.2.1.2 Features, sect.9.3.1.1 Features

i.MX 8M Mini Applications Processor Reference Manual

Best regards
igor
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Note: If this post answers your question, please click the Correct Answer button. Thank you!
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peterlischer
Contributor V

Hi igorpadykov

As you replied Ivo half a year ago, the maximum addressable DDR memory size can be found in the reference manual. In section 2.1.2, I found this table: 

pastedImage_1.png

For the first 5GByte region, the description says "Quad-A53 only". Does this mean that the Dual, DualLite, Solo, and SoloLite can only address 3GByte? 

Any clarification would be very helpful. 

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malachi_burke
Contributor I

peterlischer‌ it sure seems that way

igorpadykov I'm also curious, since we're using i.MX 8M Mini also (Variscite's DART-MX8M-MINI) though it seems this vendor limits to 4GB currently

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igorpadykov
NXP TechSupport
NXP TechSupport

Hi Malachi

max. size is described in sect.2.1.2 Cortex-A53 Memory Map as

replied above. Vendors may choose own configurations based on

specific design requirements.

Best regards
igor

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malachi_burke
Contributor I

OK thank you.  I was getting confused I believe with manual IMX8MDQLQRM "i.MX 8M Dual/8M QuadLite/8M Quad" - looks like a red herring.

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