Invention Grant
- Patent Title: Automatic clock-gating insertion and propagation technique
- Patent Title (中): 自动时钟门控插入和传播技术
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Application No.: US12486171Application Date: 2009-06-17
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Publication No.: US08132144B2Publication Date: 2012-03-06
- Inventor: Krishnan Sundaresan , Aravind Oommen
- Applicant: Krishnan Sundaresan , Aravind Oommen
- Applicant Address: US CA Redwood Shores
- Assignee: Oracle America, Inc.
- Current Assignee: Oracle America, Inc.
- Current Assignee Address: US CA Redwood Shores
- Agency: Park, Vaughan, Fleming & Dowler LLP
- Main IPC: G06F17/50
- IPC: G06F17/50 ; G06F9/455

Abstract:
Embodiments of the present invention provide a method and system for clock-gating a circuit. During operation, the system receives a circuit which includes a plurality of clocked memory elements. Next, the system identifies a feedback path from an output of a clocked memory element to an input of the clocked memory element, wherein the feedback path passes through intervening combinational logic, but does not pass through other clocked memory elements in the circuit. Then, the system gates a clock signal to the clocked memory element so that the clock signal is disabled when the feedback path causes a value which appears at the output of the clocked memory element to be appear at the input of the clocked memory element.
Public/Granted literature
- US20100325452A1 AUTOMATIC CLOCK-GATING INSERTION AND PROPAGATION TECHNIQUE Public/Granted day:2010-12-23
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