The following features are not supported in the Bridge core.
- Tandem Configuration solutions, which include Tandem PROM, Tandem PCIe, Tandem with Field Updates, and DFX over PCIe, are not supported for AMD Virtex™ 7 XT devices.
- In AXI Bridge Root Port mode ASPM is not supported.
- This IP architecture assumes exclusive use of one or more complete GT quads, regardless of the designed link width. While it might be possible to share unused lanes in the GT quad with other instances of this IP, non-PCIe IPs, or custom GT-based interfaces for x2 and x1 link widths, AMD does not support evaluations or implementations of such sharing arrangements. The feasibility of sharing depends on the specific GT configuration required for other protocols, links, and lanes intended to share the GT quad. Factors affecting GT configuration include external REFCLKs, fabric design clocks and resets, GT clock management resources, connectivity rules, mode, and electrical settings.