Post-CTS Delay Insertion
Joint Authors
Source
Issue
Vol. 2010, Issue 2010 (31 Dec. 2010), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2010-02-22
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Engineering Sciences and Information Technology
Abstract EN
A post-clock-tree-synthesis (post-CTS) optimization method is proposed that suggests delay insertion at the leaves of the clock tree in order to implement a limited version of clock skew scheduling.
Delay insertion is limited on each clock tree branch simultaneous with a global monitoring of the total amount of delay insertion.
The delay insertion for nonzero clock skew operation is performed only at the clock sinks in order to preserve the structure and the optimizations implemented in the clock tree synthesis stage.
The methodology is implemented as a linear programming model amenable to two design objectives: fixing timing violations or optimizing the clock period.
Experimental results show that the clock networks of the largest ISCAS'89 circuits can be corrected post-CTS to resolve the timing conflicts in approximately 90% of the circuits with minimal delay insertion (0.159 × clock period per clock path on average).
It is also shown that the majority of the clock period improvement achievable through unrestricted clock skew scheduling are obtained through very limited insertion (≈43% average improvement through 10% of max insertion).
American Psychological Association (APA)
Lu, Jianchao& Taskin, Baris. 2010. Post-CTS Delay Insertion. VLSI Design،Vol. 2010, no. 2010, pp.1-9.
https://search.emarefa.net/detail/BIM-472654
Modern Language Association (MLA)
Lu, Jianchao& Taskin, Baris. Post-CTS Delay Insertion. VLSI Design No. 2010 (2010), pp.1-9.
https://search.emarefa.net/detail/BIM-472654
American Medical Association (AMA)
Lu, Jianchao& Taskin, Baris. Post-CTS Delay Insertion. VLSI Design. 2010. Vol. 2010, no. 2010, pp.1-9.
https://search.emarefa.net/detail/BIM-472654
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-472654