公开(公告)号：US08719598B2

公开(公告)日：2014-05-06

申请号：US12828880

申请日：2010-07-01

申请人： Shawn Searles ,  Scott C. Johnson ,  Grace I. Chuang

发明人： Shawn Searles ,  Scott C. Johnson ,  Grace I. Chuang

IPC分类号： G06F1/28 ,  G06F1/30

CPC分类号： G06F1/28

摘要： A method and apparatus for powering up an integrated circuit (IC). An IC includes a plurality of power domains each coupled to receive power from one of a plurality of power sources. Each power domain includes a power-sensing unit. A power-sensing unit in a first one of the plurality of power domains is coupled to receive a first power ok signal from an upstream power domain, and is configured to assert a second power ok signal to be provided to a second power domain. A power-sensing unit in the second power domain is coupled to detect the presence of voltage in the first power domain, and to receive the first power ok signal. When the power-sensing unit in the second power domain has both sensed the presence of power in the first power domain and received the second power ok signal, a third power ok signal is asserted.

摘要翻译： 一种用于为集成电路（IC）供电的方法和装置。 IC包括多个功率域，每个功率域被耦合以从多个电源之一接收功率。 每个功率域包括功率感测单元。 多个功率域中的第一个功率区中的功率感测单元被耦合以从上游功率域接收第一功率ok信号，并且被配置为断言要提供给第二功率域的第二功率ok信号。 耦合第二功率域中的功率感测单元以检测第一功率域中的电压的存在并接收第一功率ok信号。 当第二功率域中的功率感测单元已经感测到在第一功率域中存在功率并且接收到第二功率ok信号时，断言第三功率确认信号。

公开(公告)号：US20100275051A1

公开(公告)日：2010-10-28

申请号：US12828880

申请日：2010-07-01

申请人： Shawn Searles ,  Scott C. Johnson ,  Grace I. Chuang

发明人： Shawn Searles ,  Scott C. Johnson ,  Grace I. Chuang

IPC分类号： G06F1/26

CPC分类号： G06F1/28

摘要： A method and apparatus for powering up an integrated circuit (IC). An IC includes a plurality of power domains each coupled to receive power from one of a plurality of power sources. Each power domain includes a power-sensing unit. A power-sensing unit in a first one of the plurality of power domains is coupled to receive a first power ok signal from an upstream power domain, and is configured to assert a second power ok signal to be provided to a second power domain. A power-sensing unit in the second power domain is coupled to detect the presence of voltage in the first power domain, and to receive the first power ok signal. When the power-sensing unit in the second power domain has both sensed the presence of power in the first power domain and received the second power ok signal, a third power ok signal is asserted.

摘要翻译： 一种用于为集成电路（IC）供电的方法和装置。 IC包括多个功率域，每个功率域被耦合以从多个电源之一接收功率。 每个功率域包括功率感测单元。 多个功率域中的第一个功率域中的功率感测单元被耦合以从上游功率域接收第一功率ok信号，并且被配置为断言要提供给第二功率域的第二功率ok信号。 耦合第二功率域中的功率感测单元以检测第一功率域中的电压的存在并接收第一功率ok信号。 当第二功率域中的功率感测单元已经感测到在第一功率域中存在功率并且接收到第二功率ok信号时，断言第三功率确认信号。

公开(公告)号：US07770037B2

公开(公告)日：2010-08-03

申请号：US11408226

申请日：2006-04-20

申请人： Shawn Searles ,  Scott C. Johnson ,  Grace I. Chuang

发明人： Shawn Searles ,  Scott C. Johnson ,  Grace I. Chuang

IPC分类号： G06F1/26 ,  G06F1/32

CPC分类号： G06F1/28

摘要： A method and apparatus for powering up an integrated circuit (IC). An IC includes a plurality of power domains each coupled to receive power from one of a plurality of power sources. Each power domain includes a power-sensing unit. A power-sensing unit in a first one of the plurality of power domains is coupled to receive a first power ok signal from an upstream power domain, and is configured to assert a second power ok signal to be provided to a second power domain. A power-sensing unit in the second power domain is coupled to detect the presence of voltage in the first power domain, and to receive the first power ok signal. When the power-sensing unit in the second power domain has both sensed the presence of power in the first power domain and received the second power ok signal, a third power ok signal is asserted.

摘要翻译： 一种用于为集成电路（IC）供电的方法和装置。 IC包括多个功率域，每个功率域被耦合以从多个电源之一接收功率。 每个功率域包括功率感测单元。 多个功率域中的第一个功率区中的功率感测单元被耦合以从上游功率域接收第一功率ok信号，并且被配置为断言要提供给第二功率域的第二功率ok信号。 耦合第二功率域中的功率感测单元以检测第一功率域中的电压的存在并接收第一功率ok信号。 当第二功率域中的功率感测单元已经感测到在第一功率域中存在功率并且接收到第二功率ok信号时，断言第三功率确认信号。