公开(公告)号：EP3146408A1

公开(公告)日：2017-03-29

申请号：EP15716364.3

申请日：2015-04-01

Applicant: Apple Inc.

Inventor： TRIPATHI, Brijesh ,  KEIL, Shane J. ,  GULATI, Manu ,  CHO, Jung Wook ,  MACHNICKI, Erik P. ,  HERBECK, Gilbert H. ,  MILLET, Timothy J. ,  DE CESARE, Joshua P. ,  DALAL, Anand

IPC: G06F1/32

CPC classification number: G01D9/00 ,  G06F1/3206 ,  G06F1/3287 ,  G06F1/3293 ,  G06F13/1689 ,  Y02D10/122 ,  Y02D10/171 ,  Y02D50/20

Abstract: In an embodiment, a system on a chip (SOC) includes a component that remains powered when the remainder of the SOC is powered off. The component may include a sensor capture unit to capture data from various device sensors, and may filter the captured sensor data. Responsive to the filtering, the component may wake up the remainder of the SOC to permit the processing. The component may store programmable configuration data, matching the state at the time the SOC was most recently powered down, for the other components of the SOC, in order to reprogram them after wakeup. In some embodiments, the component may be configured to wake up the memory controller within the SOC and the path to the memory controller, in order to write the data to memory. The remainder of the SOC may remain powered down.

Abstract translation: 在一个实施例中，芯片上的系统（SOC）包括当SOC的其余部分断电时保持供电的组件。 该组件可以包括用于从各种设备传感器捕获数据的传感器捕获单元，并且可以过滤所捕获的传感器数据。 响应于过滤，组件可以唤醒SOC的剩余部分以允许处理。 组件可以存储可编程配置数据，与SOC最近断电时的状态相匹配，用于SOC的其他组件，以便在唤醒后重新编程它们。 在一些实施例中，组件可以被配置为唤醒SOC内的存储器控​​制器和到存储器控制器的路径，以便将数据写入存储器。 SOC的其余部分可能仍然断电。

公开(公告)号：EP3872604A1

公开(公告)日：2021-09-01

申请号：EP21169823.8

申请日：2011-04-07

Applicant: Apple Inc.

Inventor： DE CESARE, Joshua P. ,  CHO, Jung Wook ,  TAKAYANAGI, Toshi ,  MILLET, Timothy J.

IPC: G06F1/32 ,  G06F1/3203 ,  G06F1/3237 ,  G06F1/3287

Abstract: In an embodiment, a power management unit (PMU) may automatically transition (in hardware) the performance states of one or more performance domains in a system. The target performance states to which the performance domains are to transition may be programmable in the PMU by software, and software may signal the PMU that a processor in the system is to enter the sleep state. The PMU may control the transition of the performance domains to the target performance states, and may cause the processor to enter the sleep state. In an embodiment, the PMU maybe programmable with a second set of target performance states to which the performance domains are to transition when the processor exits the sleep state. The PMU may control the transition of the performance domains to the second targeted performance states and cause the processor to exit the sleep state.

公开(公告)号：EP4273666A2

公开(公告)日：2023-11-08

申请号：EP23191129.8

申请日：2011-04-07

Applicant: Apple Inc.

Inventor： DE CESARE, Joshua P. ,  CHO, Jung Wook ,  TAKAYANAGI, Toshi ,  MILLET, Timothy J.

IPC: G06F1/3287

Abstract: In an embodiment, a power management unit (PMU) may automatically transition (in hardware) the performance states of one or more performance domains in a system. The target performance states to which the performance domains are to transition may be programmable in the PMU by software, and software may signal the PMU that a processor in the system is to enter the sleep state. The PMU may control the transition of the performance domains to the target performance states, and may cause the processor to enter the sleep state. In an embodiment, the PMU may be programmable with a second set of target performance states to which the performance domains are to transition when the processor exits the sleep state. The PMU may control the transition of the performance domains to the second targeted performance states and cause the processor to exit the sleep state.