Please use this identifier to cite or link to this item:
http://hdl.handle.net/20.500.11889/4428
Title: | Bit-swapping LFSR and scan-chain ordering : a novel technique for peak- and average-power reduction in scan-based BIST | Authors: | Abu Issa, Abdallatif Quigley, Steven F. |
Keywords: | Integrated circuits - Large scale integration;Linear operators | Issue Date: | 2009 | Abstract: | This paper presents a novel low-transition linear feedback shift register (LFSR) that is based on some new observations about the output sequence of a conventional LFSR. The proposed design, called bit-swapping LFSR (BS-LFSR), is composed of an LFSR and a 2×1 multiplexer. When used to generate test patterns for scan-based built-in self-tests, it reduces the number of transitions that occur at the scan-chain input during scan shift operation by 50% when compared to those patternsproduced by a conventional LFSR. Hence, it reduces the overall switchingactivity in the circuit under test during test applications. The BS-LFSR is combined with a scan-chain-ordering algorithm that orders the cells in a way that reduces the average and peak power (scan and capture) in the test cycle or while scanning out a response to a signature analyzer. These techniques have a substantial effect on average- and peak-power reductions with negligible effect on fault coverage or test application time. Experimental results on ISCAS’89 benchmark circuits show up to 65% and 55% reductions in average and peak power, respectively. | Description: | IEEE TRANSACTIONS ON COMPUTER-AIDED DESIGN OF INTEGRATED CIRCUITS AND SYSTEMS, VOL. 28, NO. 5, MAY 2009, pp. 755-759 | URI: | http://hdl.handle.net/20.500.11889/4428 |
Appears in Collections: | Fulltext Publications |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
04838831_002.pdf | 229.13 kB | Adobe PDF | View/Open |
Page view(s)
140
Last Week
0
0
Last month
2
2
checked on Apr 14, 2024
Download(s)
92
checked on Apr 14, 2024
Google ScholarTM
Check
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.