SystemBIST is an advanced plug-and-play IC designed for the flexible configuration of FPGA and embedded JTAG tests. It stands out as a vendor-independent device capable of configuring any IEEE 1532 or 1149.1 standard-compliant FPGA directly in the field. With a focus on cutting down configuration PROM costs, SystemBIST stores compressed test scripts in FLASH memory, facilitating access to ready-to-run built-in tests at power-up. The device also ensures effective security against FPGA tampering and unauthorized field updates, reinforcing its utility in high-security applications.