PCIe RQ/RC - 4.0 English

QDMA Subsystem for PCI Express Product Guide (PG302)

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4.0 English

The PCIe Requester Request (RQ)/Requester Completion (RC) interface generates PCIeTLPs on the RQ bus and processes PCIe Completion TLPs from the RC bus. This interface to the UltraScale+ Integrated Block for PCIe® core operates in DWord aligned mode. With a 512-bit interface, straddling will be enabled. While straddling is supported, all combinations of RQ straddled transactions may not be implemented. For further details, see the UltraScale+ Devices Integrated Block for PCI Express LogiCORE IP Product Guide (PG213).