公开(公告)号：US06924710B2

公开(公告)日：2005-08-02

申请号：US10659637

申请日：2003-09-09

申请人： Keng L. Wong ,  Hong-Piao Ma ,  Greg F. Taylor ,  Chee How Lim ,  Robert Greiner ,  Edward A. Burton ,  Douglas R. Huard

发明人： Keng L. Wong ,  Hong-Piao Ma ,  Greg F. Taylor ,  Chee How Lim ,  Robert Greiner ,  Edward A. Burton ,  Douglas R. Huard

IPC分类号： G06F1/08 ,  G06F1/10 ,  H03L7/099 ,  H03L7/18 ,  H03L1/00

CPC分类号： G06F1/3203 ,  G06F1/08 ,  G06F1/10 ,  H03L7/0995 ,  H03L7/18 ,  Y02D10/126

摘要： An apparatus and method are provided for operating a processor core. This may include a first circuit to operate at a frequency that is dependent on a power supply voltage. A frequency control circuit may be provided to control a frequency of the first circuit by directing a voltage regulator to increase or decrease the power supply voltage.

摘要翻译： 提供了一种用于操作处理器核心的装置和方法。 这可以包括在取决于电源电压的频率下操作的第一电路。 可以提供频率控制电路以通过引导电压调节器来增加或减少电源电压来控制第一电路的频率。

公开(公告)号：US06809606B2

公开(公告)日：2004-10-26

申请号：US10136321

申请日：2002-05-02

申请人： Keng L. Wong ,  Hong-Piao Ma ,  Greg F. Taylor ,  Chee How Lim ,  Robert Greiner ,  Edward A. Burton ,  Douglas R. Huard

发明人： Keng L. Wong ,  Hong-Piao Ma ,  Greg F. Taylor ,  Chee How Lim ,  Robert Greiner ,  Edward A. Burton ,  Douglas R. Huard

IPC分类号： H03L100

CPC分类号： G06F1/3203 ,  G06F1/08 ,  G06F1/10 ,  H03L7/0995 ,  H03L7/18 ,  Y02D10/126

摘要： An apparatus and method are provided for operating a processor core. This may include a first circuit to operate at a frequency that is dependent on a power supply voltage. A frequency control circuit may be provided to control a frequency of the first circuit by directing a voltage regulator to increase or decrease the power supply voltage.

摘要翻译： 提供了一种用于操作处理器核心的装置和方法。 这可以包括在取决于电源电压的频率下操作的第一电路。 可以提供频率控制电路以通过引导电压调节器来增加或减少电源电压来控制第一电路的频率。

公开(公告)号：US06771134B2

公开(公告)日：2004-08-03

申请号：US10136474

申请日：2002-05-02

申请人： Keng L. Wong ,  Hong-Piao Ma ,  Greg F. Taylor ,  Chee How Lim ,  Edward A. Burton

发明人： Keng L. Wong ,  Hong-Piao Ma ,  Greg F. Taylor ,  Chee How Lim ,  Edward A. Burton

IPC分类号： H03B2700

CPC分类号： H03L7/0995 ,  G06F1/08 ,  G06F1/10 ,  H03L7/18

摘要： A clock generating circuit is provided that includes a plurality of distributed ring oscillators to drive a clock distribution network. Multiplexing devices may select a length or delay of each of the ring oscillators. The variable length or delay may thereby adjust the frequency of the clock generating circuit.

摘要翻译： 提供了一种时钟发生电路，其包括多个分布式环形振荡器以驱动时钟分配网络。 多路复用器件可以选择每个环形振荡器的长度或延迟。 因此，可变长度或延迟可以调节时钟发生电路的频率。

公开(公告)号：US06985041B2

公开(公告)日：2006-01-10

申请号：US10136390

申请日：2002-05-02

申请人： Keng L. Wong ,  Niraj Bindal ,  Hong-Piao Ma ,  George Geannopoulos ,  Greg F. Taylor ,  Edward A. Burton

发明人： Keng L. Wong ,  Niraj Bindal ,  Hong-Piao Ma ,  George Geannopoulos ,  Greg F. Taylor ,  Edward A. Burton

IPC分类号： H03B27/00

CPC分类号： G06F1/10 ,  H03K3/0315 ,  H03K5/133 ,  H03K5/15013

摘要： A clock generating circuit is provided that includes a multiplexing device coupled to a clock distribution network to select between a synchronous mode and an asynchronous mode. The device may also include a plurality of distributed ring oscillators to drive the clock distribution network in the asynchronous mode. In the synchronous mode, the multiplexing device may pass a signal from a phase lock loop circuit located external to a core.

公开(公告)号：US07242261B2

公开(公告)日：2007-07-10

申请号：US10680498

申请日：2003-10-06

申请人： Keng L. Wong ,  Hong-Piao Ma ,  Greg F. Taylor

发明人： Keng L. Wong ,  Hong-Piao Ma ,  Greg F. Taylor

IPC分类号： H03B1/00

CPC分类号： H03K5/15013 ,  G06F1/10 ,  G06F1/28 ,  H03K3/011 ,  H03K3/0315 ,  H03K5/133

摘要： An apparatus is provided that includes a clock distribution network, a plurality of distributed oscillators provided about the clock distribution network so as to provide clock signals on the clock distribution network and a power control circuit to control power applied to the plurality of distributed oscillators. The power control circuit includes a bandgap device to produce a reference voltage based on a desired power level and a comparing/decision device to receive the reference voltage from the bandgap device and to receive the voltage signal from a source external to the apparatus. The comparing/decision device determines whether the signal received from the power source corresponds to the desired power level.

摘要翻译： 提供了一种装置，其包括时钟分配网络，围绕时钟分配网络设置的多个分布式振荡器，以便在时钟分配网络上提供时钟信号;以及功率控制电路，用于控制施加到多个分布式振荡器的功率。 功率控制电路包括用于基于期望功率电平产生参考电压的带隙装置和用于从带隙装置接收参考电压并且从设备外部的源接收电压信号的比较/判定装置。 比较/判定装置确定从电源接收的信号是否对应于期望的功率电平。

公开(公告)号：US06778033B2

公开(公告)日：2004-08-17

申请号：US10136318

申请日：2002-05-02

申请人： Keng L. Wong ,  Hong-Piao Ma ,  Greg F. Taylor

发明人： Keng L. Wong ,  Hong-Piao Ma ,  Greg F. Taylor

IPC分类号： H03B100

CPC分类号： H03K5/15013 ,  G06F1/10 ,  G06F1/28 ,  H03K3/011 ,  H03K3/0315 ,  H03K5/133

摘要： An apparatus is provided that includes a clock distribution network, a plurality of distributed oscillators provided about the clock distribution network so as to provide clock signals on the clock distribution network and a power control circuit to control power applied to the plurality of distributed oscillators. The power control circuit includes a bandgap device to produce a reference voltage based on a desired power level and a comparing/decision device to receive the reference voltage from the bandgap device and to receive the voltage signal from a source external to the apparatus. The comparing/decision device determines whether the signal received from the power source corresponds to the desired power level.