The TTX_TEST in (4) is the time taken to transmit the test result from the FMother to the PC. TWR_REPORT refers to the time taken to generate the test results report. Lastly, TSETUP_IMPACT is the time taken by the PC from receiving the order to download a bitstream from the software application to beginning to transmit data via the USB bus. As can be seen in Table 3, this time is the most restrictive and is limited by the Xilinx Impact application. This is the time that definitively conditions test run time.