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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Srinivas, J. Jairam, S. |
| Copyright Year | 2010 |
| Description | Author affiliation: CSE, Penn State University, USA (Srinivas, J.; Jairam, S.) |
| Abstract | Clock Gating has been the most widely used method to reduce dynamic power for digital designs. Increasingly the need to assess the quality of a clock gating implementation has resulted in generation of various benchmarking criteria. These criteria however fail to provide a feel to the designer about quality of a current implementation and the scope available for further clock gating. Prior work has also reported various datapath based clock gating techniques to optimize for dynamic power. In this paper we present a new approach to analyze this problem through the IO Exclusivity (IOEX) graphs and Cluster Efficiency (CE) plots. The IOEX graph captures the datapath activity across the sequential elements normalized to the source clock. This exercise produces sequential elemental clusters or modules, which are amenable to clock gating. A CE plot then provides a visual insight into these fine grained implementations to aid the designer to further gate the given cluster. This additional gating can then be implemented either at synthesis or at the layout stages, depending on the design cycle time. Results from 65nm designs show that up to 20% dynamic power savings can be achieved with our approach over and above the industry standard low power synthesis solutions. |
| Starting Page | 638 |
| Ending Page | 641 |
| File Size | 2809965 |
| Page Count | 4 |
| File Format | |
| ISBN | 9781424470549 |
| ISSN | 15301591 |
| e-ISBN | 9783981080162 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2010-03-08 |
| Publisher Place | Germany |
| Access Restriction | Subscribed |
| Rights Holder | European Design Automation Association (EDAA) |
| Subject Keyword | Clocks Design optimization Hardware Logic Instruments Character generation Product development Standards development Cloning Pins |
| Content Type | Text |
| Resource Type | Article |
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