AR# 38064: Design Assistant for PCI Express - What happens when there are multiple errors in a TLP
Design Assistant for PCI Express - What happens when there are multiple errors in a TLP
What happens if a TLP contains multiple errors?
NOTE: This Answer Record is part of the Xilinx Solution Center for PCI Express (Xilinx Answer 34536). The Xilinx 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 PCIe to guide you to the right information.
Xilinx cores are compliant with the Error Pollution section of PCI Express Base Specification. See section 6.2.3 for more information. This section explains that if a TLP contains multiple errors, only one is reported. For example, if the data link layer reports an error on a given TLP andif another error with the same TLP is found in the transaction layer, it will not be reported. See the specification for more details on how errors are classified and reported.