公开(公告)号：US20040061523A1

公开(公告)日：2004-04-01

申请号：US10255471

申请日：2002-09-26

申请人： International Business Machine Corporation

发明人： Juan-Antonio Carballo ,  Jeffrey L. Burns ,  Gary Dale Carpenter ,  Kevin John Nowka ,  Ivan Vo ,  Seung-moon Yoo

IPC分类号： H03K019/0175

CPC分类号： H03K19/0008

摘要： A method of reducing power consumption while maintaining performance characteristics and avoiding costly over-design of a high-speed communication link embedded in an SOC is provided. The method includes synthesizing the communication link at a reduced voltage to determine and isolate circuitry that is supply-voltage-critical from circuitry that is non-supply-voltage-critical. The supply-voltage-critical circuitry contains components that may not operate at the reduced voltage without degrading the performance characteristics of the communication link. A non-reduced voltage is used to drive the supply-voltage-critical circuitry while the reduced voltage is used to drive the non-supply-voltage-critical circuitry. The reduced voltage is generated using a voltage regulator embedded in the communication link.