PCIe RQ/RC - 3.4 English

Versal Adaptive SoC CPM DMA and Bridge Mode for PCI Express Product Guide (PG347)

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3.4 English

The PCIe Requester Request (RQ)/Requester Completion (RC) interface generates PCIe TLPs on the RQ bus and processes PCIe Completion TLPs from the RC bus. This interface to the PCIe Controller operates in DWord aligned mode. With a 512-bit interface, straddling is enabled. While straddling is supported, all combinations of RQ straddled transactions might not be implemented. For further details, see the Versal Adaptive SoC CPM Mode for PCI Express Product Guide (PG346).