E3800 and PCN 116009-01

[AxelZ]

For the CPU E3827 there is the PCN 116009-01 from 2018-09-04, which states: "Intel identified possible circuit design issues in the LPC bus, USB2.0 LS/FS and SD Card logic which may result in degradation of the LPC bus, USB2.0 LS/FS and SD Card signals over time at a rate higher than Intel's quality goals. The D-1 stepping dispositions these possible issues."

Question: Will the general behavior of the processor also deteriorate over time or are ONLY the aforementioned interfaces LPC Bus, USB 2.0 and SD Card and their behavior affected by the error in the D0 stepping?

[Diego_INTEL]

Hello @AxelZ,

Thank you for contacting Intel Embedded Community.

Looking internally, the degradation occurs only in the affected circuits, but the LPC circuit damage may cause operation to cease or inability to boot. 

In RDC, document #539130 -  Intel Atom® Processor E3800 - Specification Update-NDA, you can look for "VLI89", for more details regarding this issue.

"LPC circuitry that stops functioning may cause operation to cease or inability to boot. SD Card or USB circuitry that stops functioning may cause SD Cards to be unrecognized or Low Speed or Full Speed USB devices to not function. Designs that implement the LPC interface at 1.8V signal voltage are not affected by the LPC part of this erratum."

I hope this may be of help.

Best regards,

@Diego_INTEL 

[AxelZ]

Hi @Diego_INTEL ,

thanks for you message and explanation. One remaining question would be if the processor still could be damaged in case the LPC Bus is not used at all?

Thanks in advance

[Diego_INTEL]

Hello @AxelZ,

You are very welcome.

As I understood, the degradation occurs only when the LPC Bus is used.

Best regards,

@Diego_INTEL 

[AxelZ]

Hi Diego,

thanks for that information and the detailed document. How can I access  the #539130 -  Intel Atom® Processor E3800 - Specification Update-NDA?

Thanks

[Diego_INTEL]

Hello @AxelZ,

You will need a Premier account to get access to this document, or I think you can get help from an Intel Sales Representative too if only is this document that you may need.

https://www.intel.com/content/www/us/en/support/articles/000058073/programs/resource-and-documentation-center.html

Best regards,

@Diego_INTEL