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Paper Abstract and Keywords
Presentation 2012-08-02 09:10
A Variation-Aware Low-Voltage Set-Associative Cache with Mixed-Associativity
Jinwook Jung, Yohei Nakata, Shunsuke Okumura, Hiroshi Kawaguchi, Masahiko Yoshimoto (Kobe Univ.) SDM2012-63 ICD2012-31 Link to ES Tech. Rep. Archives: SDM2012-63 ICD2012-31
Abstract (in Japanese) (See Japanese page) 
(in English) In this paper, we propose the mixed associativity scheme using 7T/14T SRAM, which can reduce the minimum operating voltage of the entire cache efficiently. The proposed mixed associativity scheme allows associativities in each index to be various. It exploits the characteristics of manufacturing-induced defects in memory structures and the recovery feature of 7T/14T SRAM. The proposed scheme has no additional cycle penalty. According to our measurement results, the proposed scheme can reduce the minimum operating voltage by 80 mV. Area estimation results show that the area overhead of the proposed cache scheme is 5.22% in 64-KB cache 8-way set-associative cache.
Keyword (in Japanese) (See Japanese page) 
(in English) Cache / SRAM / Low-voltage operation / Mixed-associativity / / / /  
Reference Info. IEICE Tech. Rep., vol. 112, no. 170, ICD2012-31, pp. 1-6, Aug. 2012.
Paper # ICD2012-31 
Date of Issue 2012-07-26 (SDM, ICD) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF SDM2012-63 ICD2012-31 Link to ES Tech. Rep. Archives: SDM2012-63 ICD2012-31

Conference Information
Committee ICD SDM  
Conference Date 2012-08-02 - 2012-08-03 
Place (in Japanese) (See Japanese page) 
Place (in English) Sapporo Center for Gender Equality, Sapporo, Hokkaido 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Low-power, low-voltage device and circuit technology 
Paper Information
Registration To ICD 
Conference Code 2012-08-ICD-SDM 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Variation-Aware Low-Voltage Set-Associative Cache with Mixed-Associativity 
Sub Title (in English)  
Keyword(1) Cache  
Keyword(2) SRAM  
Keyword(3) Low-voltage operation  
Keyword(4) Mixed-associativity  
1st Author's Name Jinwook Jung  
1st Author's Affiliation Kobe University (Kobe Univ.)
2nd Author's Name Yohei Nakata  
2nd Author's Affiliation Kobe University (Kobe Univ.)
3rd Author's Name Shunsuke Okumura  
3rd Author's Affiliation Kobe University (Kobe Univ.)
4th Author's Name Hiroshi Kawaguchi  
4th Author's Affiliation Kobe University (Kobe Univ.)
5th Author's Name Masahiko Yoshimoto  
5th Author's Affiliation Kobe University (Kobe Univ.)
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Date Time 2012-08-02 09:10:00 
Presentation Time 25 
Registration for ICD 
Paper # IEICE-SDM2012-63,IEICE-ICD2012-31 
Volume (vol) IEICE-112 
Number (no) no.169(SDM), no.170(ICD) 
Page pp.1-6 
#Pages IEICE-6 
Date of Issue IEICE-SDM-2012-07-26,IEICE-ICD-2012-07-26 

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