How to connect DDR3L to i.MX6 ULL

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How to connect DDR3L to i.MX6 ULL

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Contributor I

Can you please tell me how to connect two DDR3L chips of 256MByte density and a 16bit wide data bus to a i.MX6 ULL processor?

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Contributor I

Hi Igor,

thanks for your answer. I have these design files but I am still not sure how to connect two DDR3L chips to the i.MX6 ULL. In the schematic the schematic I can only find one chip connected to the i.MX6 ULL with the option to connect a twin- die DDR3L to the i.MX6 ULL.

Can I connect two chips instead of one twin-die chip just using the signals ODT1,SDCKE1, ZQ1 and CS1?

I am a little bit confused because in the Reference Manual for the i.MX 6ULL processor on page 2218 I found this Note:

NOTE
This feature will not be supported for DDR3 since only a single
chip select is supported for DDR3

Can you explain this to me?

Best regards

Michael

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NXP TechSupport
NXP TechSupport

Hi Michael

seems this statement was left from i.MX6SX Reference Manual,  i.MX6SX
works fine with ddr3  two chip selects.

Best regards
igor

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Contributor I

Hello Igor,

thanks for your answer,

I have one more question.

On page 2276 of the reference manual I can find the information that

address mirroring will only work for DDR2/DDR3 memories and not for

DDR2L/DDR3L. Is this right?

(Embedded image moved to file: pic01200.gif)

Mit freundlichen Grüßen

i. A. Dipl.Ing.(FH) Michael Nübling

Hardwareentwicklung

S. Siedle & Söhne Telefon- und Telegrafenwerke OHG

Bregstraße 1, 78120 Furtwangen

Telefon: +49 7723 63-307

Von: "igorpadykov" <admin@community.nxp.com>

An: "Michael Nübling" <michael.nuebling@siedle.de>

Datum: 15.05.2018 14:20

Betreff: Re: - Re: How to connect DDR3L to i.MX6 ULL

NXP Community

Re: How to connect DDR3L to i.MX6 ULL

reply from igorpadykov in i.MX Community - View the full discussion

Hi Michael

seems this statement was left from i.MX6SX Reference Manual, i.MX6SX

works fine with ddr3 two chip selects.

Best regards

igor

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NXP TechSupport
NXP TechSupport

Hi Michael

please look at i.MX6ULL EVK design files

Schematics (1)
Design files, including hardware schematics, Gerbers, and OrCAD files.
MCIMX6ULL-EVK_DESIGNFILES
http://www.nxp.com/products/software-and-tools/software-development-tools/i.mx-software-and-tools/ev...

Best regards
igor
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Contributor I

Hi Igor,

thanks for your answer. I have these design files but I am still not sure

how to connect two DDR3L chips to the i.MX6 ULL. In the schematic the

schematic I can only find one chip connected to the i.MX6 ULL with the

option to connect a twin- die DDR3L to the i.MX6 ULL.

Can I connect two chips instead of one twin-die chip just using the signals

ODT1,SDCKE1, ZQ1 and CS1?

I am a little bit confused because in the Reference Manual for the i.MX

6ULL processor on page 2218 I found this Note:

NOTE

This feature will not be supported for DDR3 since only a single

chip select is supported for DDR3

Can you explain this to me?

Best regards

Michael

Mit freundlichen Grüßen

i. A. Dipl.Ing.(FH) Michael Nübling

Hardwareentwicklung

S. Siedle & Söhne Telefon- und Telegrafenwerke OHG

Bregstraße 1, 78120 Furtwangen

Telefon: +49 7723 63-307

Von: "igorpadykov" <admin@community.nxp.com>

An: "Michael Nübling" <michael.nuebling@siedle.de>

Datum: 10.05.2018 01:25

Betreff: Re: - Re: How to connect DDR3L to i.MX6 ULL

NXP Community

Re: How to connect DDR3L to i.MX6 ULL

reply from igorpadykov in i.MX Community - View the full discussion

Hi Michael

please look at i.MX6ULL EVK design files

Schematics (1)

Design files, including hardware schematics, Gerbers, and OrCAD files.

MCIMX6ULL-EVK_DESIGNFILES

http://www.nxp.com/products/software-and-tools/software-development-tools/

i.mx-software-and-tools/evaluation-kit-for-the-i.mx-6ull-applications-proc

essor:MCIMX6ULL-EVK?tab=Design_Tools_Tab

Best regards

igor

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