Virtex-7 FPGA VC7222 Characterization Kit IBERT Getting Started Guide (UG971) - 2015.1 English - Describes the components, features, and operation of the VC7222 Virtex-7 FPGA GTH and GTZ Transceiver Characterization Board. The VC7222 board provides the hardware environment for characterizing and evaluating the GTH and GTZ transceivers available on the Virtex-7 XC7VH580T FPGA.