Due to the increasing level of integration achieved by Very Large Scale Integrated (VLSI) technology, traditional gate-level fault simulation is becoming more complex, difficult, and costly. Furthermore, circuit designs are increasingly being developed through the use of powerful VLSI computer-aided design (CAD) synthesis tools which emphasize circuit descriptions using high-level representations of functional behavior, rather than physical architectures and layout. Behavior fault simulation applied to the top functional level models described using a hardware description language offers a very attractive alternative to these problems. A new way to simulate the behavioral fault models using the hardware description language (HDL), such as VHDL, is presented. Tests were generated by carrying out the behavioral fault simulation for a few circuit models. For comparison, a gate-level fault simulation on the equivalent circuit, produced via a synthesis tool, was used. The performance analysis shows that a very small number of test patterns generated by the behavioral automatic test pattern generation (ATPG)/fault simulation system detected around 98 percent of the testable gate-level faults that were detected by random test.
VHDL behavioral ATPG and fault simulation of digital systems
IEEE Transactions on Aerospace and Electronic Systems ; 34 , 2 ; 428-447
1998-04-01
1873302 byte
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
VHDL Behavioral ATPG and Fault Simulation of Digital Systems
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