topic External I226 Ethernet Controller clock type in Ethernet Products

External I226 Ethernet Controller clock type

AdarshKHegde — Fri, 14 Mar 2025 02:53:07 GMT

Hi,

In our design we are using external I226 (KTI226ITSRKTX) an ethernet controller, for this we are providing PCIe Reference Clock 100MHz of type HCSL.

Question is can I connect directly HCSL clock to I226, if the I226 is expecting different type such as LVDS,LVPECL etc.. then we may need to convert to the type that I226 is expecting.

Thanks and Regards

Adarsh K Hegde

Re:External I226 Ethernet Controller clock type

Sachinks — Fri, 14 Mar 2025 12:06:59 GMT

Hello AdarshKHegde,

Thank you for posting in Intel community Forum.

Based on your inquiry, we understand that you wish to know if you can connect the HCSL clock directly to the I226 controller or if it needs to be converted.

We are checking this from our end. In the mean time, could you provide us the motherboard details ( model) in which this ethernet controller is connected?

Regards,

Sachin KS

Intel Customer Support Technician

Re: External I226 Ethernet Controller clock type

AdarshKHegde — Sat, 15 Mar 2025 02:35:01 GMT

Hi Sachin,

This is a custom board where we have a PCIe switch which is supplying us the 100MHz reference clock.

Thanks and Regards

Adarsh K Hegde

Re:External I226 Ethernet Controller clock type

Fikri_Intel — Sat, 15 Mar 2025 05:32:17 GMT

Hi AdarshKHegde,

Thank you for your response.

Just wondering if you managed to review the I226 datasheet below link:

https://www.intel.com/content/www/us/en/secure/content-details/596659/intel-ethernet-controller-i225-i226-datasheet.html?wapkw=i226%20datasheet&DocID=596659

Please note that the document is not publicly available. You can get the datasheets from the Intel RDC site below but the document will require CNDA:

https://www.intel.com/content/www/us/en/resources-documentation/developer.html

For further details, you can refer to the below link on how to register as a Developer Zone Premier account:

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

Looking forward to your response.

Regards,

Fikri O.

Re: External I226 Ethernet Controller clock type

AdarshKHegde — Sat, 15 Mar 2025 05:39:14 GMT

Hi Fikri,

I have the datasheet (Intel Ethernet Controller I225/ I226
Datasheet), I might have missed to find the info. If you could share me the page number or any details to find the clock type in datasheet would be helpful.

Thanks and Regards

Adarsh K Hegde

Re:External I226 Ethernet Controller clock type

Akshaya1 — Sat, 15 Mar 2025 08:11:28 GMT

Hi AdarshKHegde,

We are currently checking this with our internal team, and in the meantime, could you please confirm which motherboard you are using? This will help us in providing a more accurate and timely resolution.

Looking forward to your response.

Regards,

Akshaya

Intel Customer Support Technician

Re: External I226 Ethernet Controller clock type

AdarshKHegde — Sat, 15 Mar 2025 08:16:17 GMT

Hi Akshaya,

This is a custom board we are developing, please find the below block diagram. The PCIe switch is providing the reference clock to the ethernet controller.

Thanks and Regards

Adarsh K Hegde

Re:External I226 Ethernet Controller clock type

Akshaya1 — Sat, 15 Mar 2025 08:22:35 GMT

Hi AdarshKHegde,

Thank you for sharing the details.

We are currently reviewing the information with our internal team. Kindly allow us some time to review the details, and will get back to you with an update shortly.

We appreciate your patience and understanding.

Regards,

Akshaya

Intel Customer Support Technician

Re: External I226 Ethernet Controller clock type

AdarshKHegde — Tue, 18 Mar 2025 06:28:43 GMT

Hi,

please share your input.

Thanks and Regards

Adarsh K Hegde

Re:External I226 Ethernet Controller clock type

Sreelakshmi1 — Tue, 18 Mar 2025 08:02:00 GMT

Hi AdarshKHegde,

Greetings!

Apologies for the delay in response.

We would like to inform you that the requested information should be available in the datasheet. Since it is currently unavailable, I am checking with my resources. We will get back to you as soon as we have an update.

Thank you for understanding.

Best Regards,

Sreelakshmi

Intel Customer Support Technician

Re:External I226 Ethernet Controller clock type

Sachinks — Thu, 20 Mar 2025 09:43:28 GMT

Hello AdarshKHegde,

Good day!

As this is related to a custom board and design, we request you to create an IPS case for this issue.

You can know about creating an IPS ( Intel premier support) account and an IPS case in the below link.

Link : https://www.intel.com/content/www/us/en/support/articles/000057045/ethernet-products.html

Regards,

Sachin KS

Intel Customer Support Technician