ABSTRACT
In this paper, a complete example for BIST (Built-In Self-Test) boundary scan architecture
and 16-bit multiplier as the CUT is presented. Adding BIST boundary scan capabilities to the
digital VLSI integrated circuit design makes the electronic card testable from five pins TMS,
TCK, TDI, TDO and TRST* that is optional. The simulation and then design download are
presented on the Spartan Xilinx X2C100 chip. The hardware implementation is tested using
the interfacing through the parallel port of the personal computer that supplies required five
control pins. This approach will lead to the concept of the portable ATE (Automatic Test
Equipment). All required test circuitry is embedded in the integrated circuits and the control
of the test circuitry is supplied from the TAP (Test Access Port) controller. Finally, the TAP
controller is controlled from the parallel port of the personal computer. So, the personal
computer is used as a master controller and the TAP controller is used as a slave controller.
The presented idea of the new BIST testing architecture solves the testing problem of the
digital VLSI circuits using the traditional ATE.