PCIe CQ/CC - 3.3 English

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

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3.3 English
The PCIe Completer Request (CQ)/Completer Completion (CC) modules receive and process TLP requests from the remote PCIe agent. This interface to the PCIE Controller operates in address aligned mode. The module uses the BAR information from the Integrated Block for IP PCIE Controller to determine where the request should be forwarded. The possible destinations for these requests are:
  • DMA configuration module
  • AXI4 MM Bridge interface to Network on Chip (NoC)
Non-posted requests are expected to receive completions from the destination, which are forwarded to the remote PCIe agent. For further details, see the Versal ACAP CPM Mode for PCI Express Product Guide (PG346).