Tandem Configuration is available for the QDMA Subsystem for PCI Express for specific AMD UltraScale+™ devices. The two-stage methodology to quickly configure the IP to meet the configuration time requirements in the PCI Express Specification is also available for other AMD IP, including the UltraScale+ Devices Integrated Block for PCI Express and the DMA/Bridge Subsystem for PCI Express. For more information on the Tandem Configuration solution, see UltraScale+ Devices Integrated Block for PCI Express LogiCORE IP Product Guide (PG213).
The QDMA Subsystem for PCI Express also allows you to enable the MCAP for delivery of partial bitstreams for the Dynamic Function eXchange (DFX) solution. This feature uses a standard initial configuration of the device (NOT Tandem Configuration), followed by delivery of partial bitstreams over the PCIe link to dynamically update portions of the programmable logic. The Vivado DFX design flow is used to create and manage these partial bitstreams; the PCIe end point remains in the static portion of the design.