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AR# 41151

Design Assistant for PCI Express - What happens if link has 8b10b errors?


What can be done to solve 8b10b errors?

Note: This Answer Record is a part of the Xilinx Solution Center for PCI Express(Xilinx Answer 34536). TheXilinx Solution Center for PCI Express is available to address all questions related to PCIe. Whether you are starting a new design with PCIe or troubleshooting a problem, use the Solution Center for PCIeto guide you to the right information.


If the MGTs RXSTATUS port is reporting 8b10b errors, these must be root caused. The User Guides contain a chapter on "Board Design Guidelines" that includes helpful information regarding board layout. Also, review the MGT power supplies and ensure they are correct.

Revision History
03/09/2011 - Initial Release
AR# 41151
Date Created 03/10/2011
Last Updated 05/19/2012
Status Active
Type Known Issues
  • Virtex-6 FPGA Integrated Block for PCI Express ( PCIe )
  • Spartan-6 FPGA Integrated Endpoint Block for PCI Express ( PCIe )