Regarding i.MX6UL datasheet

[surendrajadhav]

Hello,

Earlier I was referring to i.MX6UL datasheet "i.MX 6UltraLiteApplications Processorsfor Consumer Products" with document rev no. as "Document Number: IMX6ULCEC Rev. 1, 04/2016".--> It was in April 2016

Now I received three datasheets of i.MX6UL with No. as "Document Number: IMX6ULCEC Rev. 2, 02/2017"-->Feb. 2017.

Also there are three different datasheets for consumer, Industrial and Automotive grade.

Is there any design differece between old and new datasheets, as my schematic design is complete and I am into PCB layout stage.

Regards,

Surendra

[Yuri]

Hello,

 Regarding design - please double check i.MX6UL power up / down sequence,

taking in to account erratum ERR010690 SNVS (SNVS_LP Registers Reset Issue)

http://www.nxp.com/assets/documents/data/en/errata/IMX6ULCE.pdf 

Also, You may create request to check Your design.

Have a great day,

Yuri

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[surendrajadhav]

Dear Yuri,

You had reviewed our schematic and maintained the checklist, where I can see you remarks as folowing:

1. "Passed"

2."+"

3. "!"

Passed is OK, but what does "+" and "!" represents.

Regards,

Surendra

[Yuri]

Hello,

  "passed" and "+" mean OK ; "!" - pay attention, double check ! 

Regards,

Yuri.

[surendrajadhav]

Thanks a lot.

[surendrajadhav]

Hello Yuri,

I had raised  a new case "00109976" regarding the power down sequence.

Could you please resolve it ASAP.

Regards,

Surendra

[Yuri]

OK

[surendrajadhav]

Dear Yuri,

In recommendation checklist, there was one point as below:

>>If VDD_SNVS_IN is directly supplied by a coin cell, a schottky diode is required between VDD_HIGH_IN and VDD_SNVS_IN. The cathode is connected to VDD_SNVS_IN. Alternately, VDD_HIGH_IN and VDD_SNVS_IN can be tied together if the real-time clock function is not needed during system power-down.

However above change is not implemented in any of the EVK from Freescale/NXP, eventhough they are supporting RTC feature. That means I could not see schottkey diode being used between  VDD_HIGH_IN and VDD_SNVS_IN.

Kindly confirm.

Surendra

[Yuri]

Hello, Surendra !

  is it possible to create new Community thread or request regarding VDD_HIGH_IN and VDD_SNVS_IN ?

Regards,

Yuri.

[surendrajadhav]

Yes Sure.

Regards,

Surendra