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Efficient test generation for built-in self-test boundary-scan template
Conference proceeding

Efficient test generation for built-in self-test boundary-scan template

P Nagvajara, M.G Karpovsky and L.B Levitin
Digest of Papers 1991 VLSI Test Symposium 'Chip-to-System Test Concerns for the 90's, pp 277-284
1991

Abstract

Automatic testing Built-in self-test Circuit testing Clocks Design engineering Laboratories Pattern analysis Pulse generation System testing Test pattern generators
An analysis and design of a pseudorandom pattern generator, (PRPG), based on a linear recurrence, for built-in self-test (BIST) boundary scan design is presented. The authors present for the case when r>or=s, a design of an s-stage PRPG capable of producing 2/sup s/-1 distinct r-bit patterns within 2/sup s/-1 clock pulses independent of the hardware realization of the PRPG. For the case when r<s, the expected number N(T) of PRPG clock pulses required for generating T<or=2/sup r/ distinct r-bit patterns and the expected number T(N) of distinct patterns given a number N of clock pulses were presented. The proposed theoretical average N(T) was shown to be close to the experimental average values N/sub ex/(T). Hence, the value N(T) or T(N) can be used as a benchmark for evaluating the efficiency of a BIST boundary scan test generation.< >

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