PCH's GPIO signal to control gate of I226 3.3V power rail marked Mandatory

[HSteg]

In the schematic checklist for the I225/I226 (576704-Intel-Ethernet-Controller-I225-I226-Design-Checklist-rev2.6.7.xlsx), one of the checklist items indicates using the PCH's GPIO signal to control and gate the I225/I226 3.3V power rail and is marked as Mandatory.

Can you provide more information on this mandatory requirement?  Is this required by some software driver for these Ethernet Controllers?  In my application, the PCH is located on a COM Express Type 7 module that does not expose the PCH's GPIO signals to the COM Express Carrier board.  The I226s will be located on the COM Express Carrier board.  I'm trying to determine if that's problematic given the Mandatory status indicated in the checklist.

[Irwan_Intel]

Hello HSteg,

Thank you for the posting in Intel Ethernet Communities.

Please note, since your inquiry related to the board design. we have specific forum that could support your case.

I've move it to the Embedded community forum for further assistance.

Regards,

Irwan_Intel

[CarlosAM_INTEL]

Hello,  @HSteg:

Thank you for contacting Intel Embedded Community.

We received your consultations, but we want to address the following questions to understand them:

Could you please confirm if the device related to this situation has been designed by you or a third-party developer? In case it is a third-party device, please let us know the name of the manufacturer and the part number of the device.

Could you please confirm if this situation is related to an Intel Ethernet Controller, NIC card, or adding card? Please mention the name of the manufacturer and part number.

Where do you purchase the device related to your requests?

We are waiting for your clarification.

Best regards,

@CarlosAM_INTEL.

[HSteg]

Hi CarlosAM_INTEL,

Thanks for getting back to me.

I am designing a board that has four Intel I226 (Intel KTI226IT S RKTX) devices on it.  This design is in the design phase.  Ampex will be purchasing the I226 parts through distribution, most likely from Arrow or Mouser. I contacted Arrow's support and they recommended that I post the question to Intel's support community.

My questions stems from information provided by Intel for designing in the I226; specifically the I225/I226 Schematic Checklist (576704-Intel-Ethernet-Controller-I225-I226-Design-Checklist-rev2.6.7.xlsx).

Sincerely,

Hal

[CarlosAM_INTEL]

Hello, @HSteg:

Thanks for your reply.

The information that may help you is accessible when your account is an Intel Developer Zone Premier account. Due to this, you should update it by filling out the form stated on the following website:

https://www.intel.com/content/www/us/en/forms/support/my-intel-sign-on-support.html  

Your business email address is needed to avoid any inconvenience. The free email provider's address (such as the one provided by Hotmail, Gmail, Yahoo, or others) is not the proper one for this process. This information and more details can be found on the following website:

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

Best regards,

@CarlosAM_INTEL.

[HSteg]

Hi CarlosAM_Intel,

I've attached some information from my Intel account profile.  This includes my business email address as well as the profile's access to Intel's Developer Zone Premier. It indicates that Ampex Data Systems Corp's status is Approved.  Doesn't this indicate that I have an Intel Developer Zone Premier account?

Sincerely,

Hal

[CarlosAM_INTEL]

Hello, @HSteg:

Thanks for your reply.

We have sent an email to the address related to this account with information that may help you.

Best regards,

@CarlosAM_INTEL.

[HSteg]

Hi CarlosAM_INTEL,

I have responded to that email.

Sincerely,

Hal

[CarlosAM_INTEL]

Hello, @HSteg:

Thanks for your update.

We sent another email to the address associated with this account with a suggestion that may help you.

Best regards,

@CarlosAM_INTEL.

[HSteg]

Hi CarlosAM_INTEL,

Thanks for that additional information.  I have responded to that email.

Sincerely,

Hal

[CarlosAM_INTEL]

Hello, @HSteg:

Thanks for your reply and follow our suggestion.

Best regards,

@CarlosAM_INTEL.