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10th Asian Test Symposium (ATS'01)
A Gated Clock Scheme for Low Power Scan Testing of Logic ICs or Embedded Cores
Kyoto, Japan
November 19-November 21
ISBN: 0-7695-1378-6
Y. Bonhomme, Universit? Montpellier II /CNRS
P. Girard, Universit? Montpellier II /CNRS
L. Guiller, Universit? Montpellier II /CNRS
C. Landrault, Universit? Montpellier II /CNRS
S. Pravossoudovitch, Universit? Montpellier II /CNRS
Test power is now a big concern in large System-on-Chip designs. In this paper, we present a novel approach for minimizing power consumption during scan testing of integrated circuits or embedded cores. The proposed low power technique is based on a gated clock scheme for the scan path and the clock tree feeding the scan path. The idea is to reduce the clock rate on scan cells during shift operations without increasing the test time. Numerous advantages can be found in applying such a technique.
Citation:
Y. Bonhomme, P. Girard, L. Guiller, C. Landrault, S. Pravossoudovitch, "A Gated Clock Scheme for Low Power Scan Testing of Logic ICs or Embedded Cores," ats, pp.253, 10th Asian Test Symposium (ATS'01), 2001
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