Presentation 2001/1/5
Semi-Synchronous Clock Tree Construction Under Synchronous Circuit Design Environment
Seiichiro ISHIJIMA, Atsushi TAKAHASHI,
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Abstract(in English) A ciurcuit in which clock is not necessary distributed to all registers simultaneously, called a semi-synchronous circuit, leads to higher frequency or smaller clock tree of the circuit compared with a synchronous circuit. In this paper, we propose a design method to realize a clock tree of semi-synchronous circuit. The method constructs the clock tree making use of conventional design environment. First, it determines the outlineof the clock tree structure by using the information of gate delay and determines the detail after the placement of the circuit. Next, it determines the clock schedule by using the information of delay including routing delay and realizes the semi-synchronous circuit by inserting buffers into the clock tree. We apply the proposed method to a micro processor design and find that it is easy to apply and that a faster circuit is obtained.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) semi-synchronous circuit / design method / processor / clock tree
Paper # VLD2000-120,CPSY2000-75
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Committee VLD
Conference Date 2001/1/5(1days)
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Registration To VLSI Design Technologies (VLD)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Semi-Synchronous Clock Tree Construction Under Synchronous Circuit Design Environment
Sub Title (in English)
Keyword(1) semi-synchronous circuit
Keyword(2) design method
Keyword(3) processor
Keyword(4) clock tree
1st Author's Name Seiichiro ISHIJIMA
1st Author's Affiliation Dept. of Communications and Integrated Systems, Graduate School of Science and Engineering, Tokyo Inst.of Tech.()
2nd Author's Name Atsushi TAKAHASHI
2nd Author's Affiliation Dept. of Communications and Integrated Systems, Graduate School of Science and Engineering, Tokyo Inst.of Tech.
Date 2001/1/5
Paper # VLD2000-120,CPSY2000-75
Volume (vol) vol.100
Number (no) 532
Page pp.pp.-
#Pages 7
Date of Issue