Presentation 2007-11-22
Complexities and Algorithms of Minimum-Delay Compensation Problems in Datapath Synthesis
Keisuke INOUE, Mineo KANEKO, Tsuyoshi IWAGAKI,
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Abstract(in English) As the feature size of VLSI becomes smaller, delay variations become a serious problem in VLSI design. The "setup" timing constraint can be fulfilled by choosing a clock period appropriately, while the "hold" timing constraint can not, and in many cases, the hold constraint becomes critical for a correct latch of a signal under delay variations. An approach to ensure the hold constraint under delay variations is to enlarge the minimum path delay between registers. It can be done by inserting delay elements on non-critical paths mainly in a functional unit. We call it "minimum path delay compensation" in this paper. This paper discusses the RT-level optimization problem to minimize the number of functional units which require minimum path delay compensation in datapath synthesis, and computational complexities and computation algorithms for this problem are revealed and proposed.
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Keyword(in English) Datapath synthesis / register assignment / delay variation / minimum-delay compensation
Paper # VLD2007-93,DC2007-48
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Committee DC
Conference Date 2007/11/15(1days)
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Registration To Dependable Computing (DC)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Complexities and Algorithms of Minimum-Delay Compensation Problems in Datapath Synthesis
Sub Title (in English)
Keyword(1) Datapath synthesis
Keyword(2) register assignment
Keyword(3) delay variation
Keyword(4) minimum-delay compensation
1st Author's Name Keisuke INOUE
1st Author's Affiliation School of Information Science, Japan Advanced Institute of Science and Technology()
2nd Author's Name Mineo KANEKO
2nd Author's Affiliation School of Information Science, Japan Advanced Institute of Science and Technology
3rd Author's Name Tsuyoshi IWAGAKI
3rd Author's Affiliation School of Information Science, Japan Advanced Institute of Science and Technology
Date 2007-11-22
Paper # VLD2007-93,DC2007-48
Volume (vol) vol.107
Number (no) 339
Page pp.pp.-
#Pages 6
Date of Issue