The PCIe Extended Capabilities allow you to enable PCI Express Extended Capabilities. The Advanced Error Reporting Capability (offset 0x100h ) is always enabled. The Customize IP dialog box sets up the link list based on the capabilities enabled. After enabling, you must configure the capability by setting the applicable attributes in the core top-level defined in Output Generation .
• Device Serial Number Capability : An optional PCIe Extended Capability containing a unique Device Serial Number. When this Capability is enabled, the DSN identifier must be presented on the Device Serial Number input pin of the port. This Capability must be turned on to enable the Virtual Channel and Vendor Specific Capabilities
• Virtual Channel Capability : An optional PCIe Extended Capability which allows the user application to be operated in TCn/VC0 mode. Checking this allows Traffic Class filtering to be supported. This capability only exists for physical function 0.
• Reject Snoop Transactions (Root Port Configuration Only): When enabled, any transactions for which the No Snoop attribute is applicable, but is not set in the TLP header, can be rejected as an Unsupported Request.
• Enable AER Capability : Optional PCIe Extended Capability that allows Advanced Error Reporting. This capability is always enabled.
° ECRC check capable : If ECRC check capable is enabled, the core does not send the TLP with ECRC error to the user logic and it is discarded.