The following picture shows the model of the device with CSTP that will be used in our laboratory work. Three combinational circuits CC₁, CC₂, and CC₃ are given. The number of inputs of these circuits (a₁, a₂, a₃) may be different and not equal to each other. The same about outputs (b₁, b₂, b₃). The circuits are tested with a single CSTP. It requires only one LFSR for both: test pattern generation and signature analysis. The LFSR has the length C that is greater or equal to the biggest number of inputs or outputs of the circuits. For example, if b₂ is greater than a₁, a₂, a₃, b₁, and b₃, then C>=b₂.

Last update: 6 September, 2002 by Artur Jutman