Invention Grant
US07134028B2 Processor with low overhead predictive supply voltage gating for leakage power reduction
有权
具有低开销预测电源电压门控的处理器，用于泄漏功率降低
- Patent Title: Processor with low overhead predictive supply voltage gating for leakage power reduction
- Patent Title (中): 具有低开销预测电源电压门控的处理器，用于泄漏功率降低
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Application No.: US10428170Application Date: 2003-05-01
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Publication No.: US07134028B2Publication Date: 2006-11-07
- Inventor: Pradip Bose , David M. Brooks , Peter W. Cook , Philip G. Emma , Michael K. Gschwind , Stanley E. Schuster , Vijayalakshmi Srinivasan
- Applicant: Pradip Bose , David M. Brooks , Peter W. Cook , Philip G. Emma , Michael K. Gschwind , Stanley E. Schuster , Vijayalakshmi Srinivasan
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agency: Law Office of Charles W. Peterson, Jr.
- Agent Louis J. Percello, Esq.; Satheesh K. Karra, Esq.
- Main IPC: G06F1/26
- IPC: G06F1/26 ; G06F1/32
Abstract:
An integrated circuit (IC) including unit power control, leakage reduction circuit for controllably reducing leakage power with reduced LdI/dt noise in the IC and, an activity prediction unit invoking active/dormant states in IC units. The prediction unit determines turn on and turn off times for each IC unit. The prediction unit controls a supply voltage select circuit selectively passing a supply voltage to a separate supply line at the predicted turn on time and selectively blocking the supply voltage at the predicted turn off time.
Public/Granted literature
- US20040221185A1 Processor with low overhead predictive supply voltage gating for leakage power reduction Public/Granted day:2004-11-04
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