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Hello,
I´m into designing a interface PCBA with the I225 Controller. The evaluationboard I´m using to test my produced board has a M.2 connector so I´ll design the edge of my PCB like the connector. The connector doesn´t use the CLKREQ# and PERST Signals. They are not connected at the evaluation board. Is it still possible to communicate via PCIe without these two auxiliary signals?
Best regards
Marco
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Hello, @Marco000:
Thanks for your reply.
We suggest that your design should be reviewed by Intel. You should follow the procedure stated on the following website:
https://edc.intel.com/Tools/Design-Review/Default.aspx
Your questions related to this process should be addressed by filling out the form stated on the following website:
https://edc.intel.com/Tools/Design-Review/Feedback/
Best regards,
Link Copied
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Hello, @Marco000:
Thank you for contacting Intel Embedded Community.
You should refer to the information stated in sections 1.1.3 and 1.1.5, on pages 3 and 4 of the Intel® Ethernet Controller I225 Design Considerations that should be found when you are logged into your Resource and Design Center (RDC) privileged account in the following website:
https://cdrdv2.intel.com/v1/dl/getContent/607353
The RDC Account Support form is the channel to process your account update request or report any inconveniences with the provided website. It can be found at:
https://www.intel.com/content/www/us/en/forms/support/my-intel-sign-on-support.html
Best regards,
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Hello Carlos,
thanks for you quick answer. Sadly the signal CLKREQ is not mentioned in these sections. Can you help me with this signal?
Best regards
Marco
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Hello, @Marco000:
Thanks for your reply.
You should refer to section 1.8, on page 21 of the document mentioned in our previous communication.
Best regards,
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Hello Carlos,
this section 1.8 deals with the leakage protection circuit which can be used for the signal path, but not if the signal path is needed or I can just use a Pull-Up resistor at this pin.
Best regards Marco
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Hello, @Marco000:
Thanks for your reply.
We suggest that your design should be reviewed by Intel. You should follow the procedure stated on the following website:
https://edc.intel.com/Tools/Design-Review/Default.aspx
Your questions related to this process should be addressed by filling out the form stated on the following website:
https://edc.intel.com/Tools/Design-Review/Feedback/
Best regards,

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