发明授权
US08566620B2 Data processing having multiple low power modes and method therefor
有权
具有多种低功率模式的数据处理及其方法
- 专利标题： Data processing having multiple low power modes and method therefor
- 专利标题（中）： 具有多种低功率模式的数据处理及其方法
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申请号： US12846042申请日： 2010-07-29
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公开(公告)号： US08566620B2公开(公告)日： 2013-10-22
- 发明人: Andrew C. Russell , Ravindraraj Ramaraju , Shayan Zhang
- 申请人： Andrew C. Russell , Ravindraraj Ramaraju , Shayan Zhang
- 申请人地址： US TX Austin
- 专利权人： Freescale Semiconductor, Inc.
- 当前专利权人： Freescale Semiconductor, Inc.
- 当前专利权人地址： US TX Austin
- 代理商 Joanna G. Chiu; Daniel D. Hill
- 主分类号： G06F1/00
- IPC分类号： G06F1/00
摘要：
A method is provided for operating a data processing system having a memory. The memory is coupled between a first power supply voltage terminal for receiving a first variable potential and a second power supply voltage terminal for receiving a second variable potential. An initial difference between the first variable potential and the second variable potential is not less than a first voltage. The method comprises: receiving a command to transition the data processing system from a first power supply voltage to a second power supply voltage; changing the second variable potential so that a difference between the second variable potential and the first variable potential is greater than the first voltage; and after changing the second variable potential, changing the first variable potential, wherein a difference between the first variable potential and the second variable potential is not less than the first voltage.
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