公开(公告)号：US20140092676A1

公开(公告)日：2014-04-03

申请号：US14095648

申请日：2013-12-03

Applicant: Apple Inc.

Inventor： Brian J. Campbell ,  Vincent R. von Kaenel ,  Daniel C. Murray ,  Gregory S. Scott ,  Sribalan Santhanam

IPC: G11C11/419

CPC classification number: G11C11/419 ,  G11C5/143 ,  G11C7/00 ,  G11C7/12 ,  G11C8/08 ,  G11C11/417 ,  H03K3/35613 ,  H03K19/018528

Abstract: In one embodiment, an integrated circuit includes at least one logic circuit supplied by a first supply voltage and at least one memory circuit coupled to the logic circuit and supplied by a second supply voltage. The memory circuit is configured to be read and written responsive to the logic circuit even if the first supply voltage is less than the second supply voltage during use. In another embodiment, a method includes a logic circuit reading a memory cell, the logic circuit supplied by a first supply voltage; and the memory cell responding to the read using signals that are referenced to the first supply voltage, wherein the memory cell is supplied with a second supply voltage that is greater than the first supply voltage during use.

公开(公告)号：US12235703B2

公开(公告)日：2025-02-25

申请号：US18351248

申请日：2023-07-12

Applicant: Apple Inc.

Inventor： John H. Mylius ,  Conrad H. Ziesler ,  Daniel C. Murray ,  Jong-Suk Lee ,  Rohit Kumar

IPC: G06F1/00 ,  G06F1/32 ,  G06F1/3206 ,  G06F1/3209 ,  G06F1/324 ,  G06F1/3287 ,  G06F1/3296

Abstract: An integrated circuit may include multiple instances of a component (e.g. a processor) and a control circuit. The instances may be configured to operate in various modes. Some of the modes are incapable of presenting a worst-case load on the power supply. The control circuit may be configured to monitor the instances and detect the modes in which the instances are operating. Based on the monitoring, the control circuit may request to recover a portion of the voltage margin established for worst-case conditions in the instances.

公开(公告)号：US20210173465A1

公开(公告)日：2021-06-10

申请号：US17177521

申请日：2021-02-17

Applicant: Apple Inc.

Inventor： John H. Mylius ,  Conrad H. Ziesler ,  Daniel C. Murray ,  Jong-Suk Lee ,  Rohit Kumar

IPC: G06F1/3209 ,  G06F1/3206 ,  G06F1/3296 ,  G06F1/324 ,  G06F1/3287

Abstract: In an embodiment, an integrated circuit includes multiple instances of a component (e.g. a processor) and a control circuit. The instances may be configured to operate in various modes. Some of the modes are incapable of presenting a worst-case load on the power supply. The control circuit may be configured to monitor the instances and detect the modes in which the instances are operating. Based on the monitoring, the control circuit may request to recover a portion of the voltage margin established for worst-case conditions in the instances. If the instances are to change modes, they may be configured to request mode change from the control circuit. If the mode change causes an increase in the current supply voltage magnitude (e.g. to restore some of the recovered voltage margin), the control circuit may cause the restore and permit it to complete prior to granting the mode change.

公开(公告)号：US11003233B2

公开(公告)日：2021-05-11

申请号：US16379231

申请日：2019-04-09

Applicant: Apple Inc.

Inventor： Jong-Suk Lee ,  Daniel C. Murray ,  Wei-Han Lien

IPC: G06F1/26 ,  G06F1/3206 ,  G06F1/3296 ,  G06F1/3287 ,  G06F9/50 ,  G06F1/324 ,  G06F1/3203 ,  G06F1/3228 ,  G06F1/3215

Abstract: In an embodiment, a system may include multiple processors and an automatic power state controller (APSC) configured to switch the processors between various operating points. The operating points may be described by data programmed into the APSC, and the APSC may include a register that is programmable with a target operating point request identifying a target operating point for the processors from among the described operating points. The data describing the operating points may also include an indication of whether or not the number of processors that may be concurrently active at the operating point is limited. Based on the indication and the number of active processors, the APSC may override the requested operating point with a reduced operating point. In some embodiments, a digital power estimator (DPE) may monitor operation of the processors and may throttle the processors when high power consumption is detected.

公开(公告)号：US20170160791A1

公开(公告)日：2017-06-08

申请号：US15433201

申请日：2017-02-15

Applicant: Apple Inc.

Inventor： John H. Mylius ,  Conrad H. Ziesler ,  Daniel C. Murray ,  Jong-Suk Lee ,  Rohit Kumar

IPC: G06F1/32

CPC classification number: G06F1/3209 ,  G06F1/3206 ,  G06F1/324 ,  G06F1/3287 ,  G06F1/3296 ,  Y02D10/126 ,  Y02D10/171 ,  Y02D10/172

Abstract: In an embodiment, an integrated circuit includes multiple instances of a component (e.g. a processor) and a control circuit. The instances may be configured to operate in various modes. Some of the modes are incapable of presenting a worst-case load on the power supply. The control circuit may be configured to monitor the instances and detect the modes in which the instances are operating. Based on the monitoring, the control circuit may request to recover a portion of the voltage margin established for worst-case conditions in the instances. If the instances are to change modes, they may be configured to request mode change from the control circuit. If the mode change causes an increase in the current supply voltage magnitude (e.g. to restore some of the recovered voltage margin), the control circuit may cause the restore and permit it to complete prior to granting the mode change.

公开(公告)号：US09129708B2

公开(公告)日：2015-09-08

申请号：US14467633

申请日：2014-08-25

Applicant: Apple Inc.

Inventor： Brian J. Campbell ,  Vincent R. von Kaenel ,  Daniel C. Murray ,  Gregory S. Scott ,  Sribalan Santhanam

IPC: G11C7/00 ,  G11C11/419 ,  G11C5/14 ,  G11C8/08 ,  G11C11/417 ,  G11C7/12

CPC classification number: G11C11/419 ,  G11C5/143 ,  G11C7/00 ,  G11C7/12 ,  G11C8/08 ,  G11C11/417 ,  H03K3/35613 ,  H03K19/018528

Abstract: In one embodiment, an integrated circuit includes at least one logic circuit supplied by a first supply voltage and at least one memory circuit coupled to the logic circuit and supplied by a second supply voltage. The memory circuit is configured to be read and written responsive to the logic circuit even if the first supply voltage is less than the second supply voltage during use. In another embodiment, a method includes a logic circuit reading a memory cell, the logic circuit supplied by a first supply voltage; and the memory cell responding to the read using signals that are referenced to the first supply voltage, wherein the memory cell is supplied with a second supply voltage that is greater than the first supply voltage during use.

Abstract translation: 在一个实施例中，集成电路包括由第一电源电压提供的至少一个逻辑电路和耦合到逻辑电路并由第二电源电压提供的至少一个存储器电路。 即使在使用期间第一电源电压小于第二电源电压，存储器电路被配置为响应于逻辑电路被读取和写入。 在另一个实施例中，一种方法包括：读取存储单元的逻辑电路，由第一电源电压提供的逻辑电路; 并且所述存储单元响应于所读取的使用参考于所述第一电源电压的信号，其中所述存储单元被提供在使用期间大于所述第一电源电压的第二电源电压。

公开(公告)号：US20230359259A1

公开(公告)日：2023-11-09

申请号：US18351248

申请日：2023-07-12

Applicant: Apple Inc.

Inventor： John H. Mylius ,  Conrad H. Ziesler ,  Daniel C. Murray ,  Jong-Suk Lee ,  Rohit Kumar

IPC: G06F1/3206 ,  G06F1/324 ,  G06F1/3296 ,  G06F1/3287 ,  G06F1/3209

CPC classification number: G06F1/3209 ,  G06F1/3206 ,  G06F1/324 ,  G06F1/3287 ,  G06F1/3296 ,  Y02D10/00

Abstract: An integrated circuit may include multiple instances of a component (e.g. a processor) and a control circuit. The instances may be configured to operate in various modes. Some of the modes are incapable of presenting a worst-case load on the power supply. The control circuit may be configured to monitor the instances and detect the modes in which the instances are operating. Based on the monitoring, the control circuit may request to recover a portion of the voltage margin established for worst-case conditions in the instances.

公开(公告)号：US20190235601A1

公开(公告)日：2019-08-01

申请号：US16379231

申请日：2019-04-09

Applicant: Apple Inc.

Inventor： Jong-Suk Lee ,  Daniel C. Murray ,  Wei-Han Lien

IPC: G06F1/3206 ,  G06F1/3287 ,  G06F1/3296 ,  G06F1/324 ,  G06F9/50

CPC classification number: G06F1/3206 ,  G06F1/3203 ,  G06F1/3215 ,  G06F1/3228 ,  G06F1/324 ,  G06F1/3287 ,  G06F1/3296 ,  G06F9/5094 ,  Y02D10/126 ,  Y02D10/171 ,  Y02D10/172 ,  Y02D10/22

Abstract: In an embodiment, a system may include multiple processors and an automatic power state controller (APSC) configured to switch the processors between various operating points. The operating points may be described by data programmed into the APSC, and the APSC may include a register that is programmable with a target operating point request identifying a target operating point for the processors from among the described operating points. The data describing the operating points may also include an indication of whether or not the number of processors that may be concurrently active at the operating point is limited. Based on the indication and the number of active processors, the APSC may override the requested operating point with a reduced operating point. In some embodiments, a digital power estimator (DPE) may monitor operation of the processors and may throttle the processors when high power consumption is detected.

公开(公告)号：US10303238B2

公开(公告)日：2019-05-28

申请号：US15609915

申请日：2017-05-31

Applicant: Apple Inc.

Inventor： Jong-Suk Lee ,  Daniel C. Murray ,  Wei-Han Lien

IPC: G06F1/32 ,  G06F1/3206 ,  G06F1/324 ,  G06F1/3287 ,  G06F9/50 ,  G06F1/3296 ,  G06F1/3203 ,  G06F1/3228 ,  G06F1/3215

Abstract: In an embodiment, a system may include multiple processors and an automatic power state controller (APSC) configured to switch the processors between various operating points. The operating points may be described by data programmed into the APSC, and the APSC may include a register that is programmable with a target operating point request identifying a target operating point for the processors from among the described operating points. The data describing the operating points may also include an indication of whether or not the number of processors that may be concurrently active at the operating point is limited. Based on the indication and the number of active processors, the APSC may override the requested operating point with a reduced operating point. In some embodiments, a digital power estimator (DPE) may monitor operation of the processors and may throttle the processors when high power consumption is detected.

公开(公告)号：US20170262036A1

公开(公告)日：2017-09-14

申请号：US15609915

申请日：2017-05-31

Applicant: Apple Inc.

Inventor： Jong-Suk Lee ,  Daniel C. Murray ,  Wei-Han Lien

IPC: G06F1/32 ,  G06F9/50

CPC classification number: G06F1/3206 ,  G06F1/3203 ,  G06F1/3228 ,  G06F1/324 ,  G06F1/3287 ,  G06F1/3296 ,  G06F9/5094 ,  Y02D10/126 ,  Y02D10/171 ,  Y02D10/172 ,  Y02D10/22

Abstract: In an embodiment, a system may include multiple processors and an automatic power state controller (APSC) configured to switch the processors between various operating points. The operating points may be described by data programmed into the APSC, and the APSC may include a register that is programmable with a target operating point request identifying a target operating point for the processors from among the described operating points. The data describing the operating points may also include an indication of whether or not the number of processors that may be concurrently active at the operating point is limited. Based on the indication and the number of active processors, the APSC may override the requested operating point with a reduced operating point. In some embodiments, a digital power estimator (DPE) may monitor operation of the processors and may throttle the processors when high power consumption is detected.