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Error Detecting Refreshment for Embedded DRAMs

title Error Detecting Refreshment for Embedded DRAMs
creator Hellebrand, Sybille
Wunderlich, Hans-Joachim
Ivaniuk, Alexander
Klimets, Yuri
Yarmolik, Vyacheslav N.
date 1999-04
language eng
identifier  http://www.informatik.uni-stuttgart.de/cgi-bin/NCSTRL/NCSTRL_view.pl?id=INPROC-1999-52&engl=1
ISBN: ISBN: 0-7695-0146-X
ISBN: ISSN: 1093-0167
ISBN: DOI: 10.1109/VTEST.1999.766693
description This paper presents a new technique for on-line consistency checking of embedded DRAMs. The basic idea is to use the refresh cycle for concurrently computing a test characteristic of the memory contents and compare it to a precomputed reference characteristic. Experiments show that the proposed technique significantly reduces the time between the occurrence of an error and its detection (error detection latency). It also achieves a very high error coverage at low hardware costs. Therefore it perfectly complements standard on-line checking approaches relying on error detecting codes, where the detection of certain types of errors is guaranteed, but only during READ operations accessing the erroneous data.
publisher Institute of Electrical and Electronics Engineers
type Text
Article in Proceedings
source In: Proceedings of the 17th IEEE VLSI Test Symposium (VTS), Dana Point, CA, April 25-29, 1999, pp. 384-390
contributor Rechnerarchitektur (IFI)
subject Reliability, Testing, and Fault-Tolerance (CR B.8.1)