Low-Power Logic Synthesis
Low-Power Logic Synthesis
Low-Power Logic Synthesis
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Switching Activity Reduction<br />
• Basic idea<br />
– Circuit output may be solely decided by part of the<br />
circuit function<br />
– Thus the remaining part of the circuit can be “turned off”<br />
dynamically<br />
• Implementation<br />
– Extract part of the circuit so it can be computed first<br />
• This part of the circuit is usually small<br />
– “Freeze” registers that are not useful if the output is<br />
decided<br />
NCHUCS 13
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