Presentation 2020-03-04
A Study of Dynamic Power Optimization by Latch Insertion for Asynchronous RTL Models
Shogo Semba, Hiroshi Saito,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) In this paper, we propose a dynamic power optimization method by latch insertion for asynchronous RTL models. In data-paths of the asynchronous RTL model, the proposed method inserts latches before combinational circuits to prevent the unnecessary operations. We also study a latch insertion by considering critical path delays to satisfy latency constraint. In the experiment, we applied the proposed method for three benchmarks and evaluated the reduction effect of dynamic power consumption. Compared to synchronous circuits with traditional operand isolations, the proposed latch insertion method reduced the dynamic power consumption by 28.2% on the average. On the other hand, the latch insertion method by considering critical path delays reduced the dynamic power consumption by 11.5% on the average.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) asynchronous circuits / RTL / dynamic power consumption / operand isolation
Paper # VLD2019-100,HWS2019-73
Date of Issue 2020-02-26 (VLD, HWS)

Conference Information
Committee HWS / VLD
Conference Date 2020/3/4(4days)
Place (in Japanese) (See Japanese page)
Place (in English) Okinawa Ken Seinen Kaikan
Topics (in Japanese) (See Japanese page)
Topics (in English) Design Technology for System-on-Silicon, Hardware Security, etc.
Chair Shinichi Kawamura(Toshiba) / Nozomu Togawa(Waseda Univ.)
Vice Chair Makoto Ikeda(Univ. of Tokyo) / Yasuhisa Shimazaki(Renesas Electronics) / Daisuke Fukuda(Fujitsu Labs.)
Secretary Makoto Ikeda(SECOM) / Yasuhisa Shimazaki(Kyushu Univ.) / Daisuke Fukuda(Univ. of Aizu)
Assistant / Kazuki Ikeda(Hitachi)

Paper Information
Registration To Technical Committee on Hardware Security / Technical Committee on VLSI Design Technologies
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) A Study of Dynamic Power Optimization by Latch Insertion for Asynchronous RTL Models
Sub Title (in English)
Keyword(1) asynchronous circuits
Keyword(2) RTL
Keyword(3) dynamic power consumption
Keyword(4) operand isolation
1st Author's Name Shogo Semba
1st Author's Affiliation The University of Aizu(UoA)
2nd Author's Name Hiroshi Saito
2nd Author's Affiliation The University of Aizu(UoA)
Date 2020-03-04
Paper # VLD2019-100,HWS2019-73
Volume (vol) vol.119
Number (no) VLD-443,HWS-444
Page pp.pp.37-42(VLD), pp.37-42(HWS),
#Pages 6
Date of Issue 2020-02-26 (VLD, HWS)