AXI DECERR Response - 3.0 English

AXI Bridge for PCI Express Gen3 Subsystem Product Guide (PG194)

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3.0 English

When the master bridge receives a DECERR response from the AXI bus, the request is discarded and the Master DECERR (MDE) interrupt is asserted. If the request was non-posted, a completion packet with the Completion Status = Unsupported Request (UR) is returned on the bus for PCIe.