Global Signals - 3.3 English

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

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3.3 English
Table 1. Global Signals
Signal Name Direction Description
gt_refclk0_p/gt_refclk0_n I GT reference clock
pci_gt_txp/pci_gt_txn [PL_LINK_CAP_MAX_LINK_WIDTH-1:0] O PCIe TX serial interface.
pci_gt_rxp/pci_gt_rxn [PL_LINK_CAP_MAX_LINK_WIDTH-1:0] I PCIe RX serial interface.
pcie0_user_lnk_up O Output active-High identifies that the PCI Express core is linked up with a host device.
pcie0_user_clk O User clock out. PCIe derived clock output for all interface signals output/input to QDMA. Use this clock to drive inputs and gate outputs from QDMA.
dma0_axi_aresetn O User reset out. AXI reset signal synchronous with the clock provided on the pcie0_user_clk output. This reset should drive all corresponding AXI Interconnect aresetn signals.
dma0_soft_resetn I Soft reset (active-Low). Use this port to assert reset and reset the DMA logic. This will reset only the DMA logic. User should assert and deassert this port.