Thank you for contacting the Intel Embedded Community.
The guidelines that may help you to implement the 1000BASE-T interface are stated in sections 2.1, and 4; on pages 6, and from 12 to 15 of the Intel(R) Ethernet Controller I210 Dual Design Guide document # 513305.
This document should be accessible to you if you have an Embedded Design Center (EDC) Privileged account. To request an upgrade from your Basic EDC account to a Privileged account, go to http://www.intel.com/content/www/us/en/embedded/embedded-design-center-support.html and click on “Manage Your Intel Profile” found in the “Manage Your Account” section of the page. From there you can request an upgrade. After you submit the application, please let us know and we will expedite the review of your application. The application can be found at:
Please let us know if this information is useful.