GBTX emulator for development and special versions of GBT-based readout chains

Abstract The GBTX ASIC is a standard solution for providing fast control and data readout radiation detectors used in HEP experiments. However, it subject to export restrictions due the usage of radiation-hard technology. An FPGA-based emulator (GBTxEMU) has been developed enable development GBT-based chains countries where original cannot be imported. Thanks utilizing slightly modified GBT-FGPA core, maintains basic compatibility with systems. GBTxEMU also may an interesting developing less demanding