发明名称 |
METHOD OF ENHANCING POWER SAVING IN AN INTEGRATED ELECTRONIC SYSTEM WITH DISTINCTLY POWERED ISLANDS OF FUNCTIONAL CIRCUITRIES AND RELATED DEVICE ARCHITECTURE |
摘要 |
A method for power saving in an integrated circuit device may include defining an off-switchable analog circuit island including an internal clock generating circuit, and at power-on of the integrated circuit device, supplying to clocked digital circuits of the integrated circuit device an auxiliary clock from the external controller. The auxiliary clock has a frequency determined by the external controller and being lower than the root clock signal. The method includes supplying external reset commands to the integrated circuit device until an active functioning condition of the integrated circuit device is asserted, and interrupting the supply of the auxiliary clock and enabling supply of the root clock signal to the clocked digital circuits when the active functioning condition of the integrated circuit device is asserted.
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申请公布号 |
US2011025383(A1) |
申请公布日期 |
2011.02.03 |
申请号 |
US20100844539 |
申请日期 |
2010.07.27 |
申请人 |
STMICROELECTRONICS S.R.L. |
发明人 |
DE MARTINI CHIARA;GIACONIA MATTEO;PROVASI MARCO |
分类号 |
H03L7/00 |
主分类号 |
H03L7/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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