Method and apparatus for providing telemetry for power management functions
    3.
    发明授权
    Method and apparatus for providing telemetry for power management functions 有权
    为电源管理功能提供遥测的方法和装置

    公开(公告)号:US09529403B2

    公开(公告)日:2016-12-27

    申请号:US14466205

    申请日:2014-08-22

    Applicant: Apple Inc.

    CPC classification number: G06F1/3203 G06F1/3296 Y02D10/172

    Abstract: A method and apparatus for providing telemetry for use in power control functions is disclosed. A system includes an integrated circuit (IC) having a first power management circuit. The IC also includes a number of functional circuit blocks within a number of different power domains. A second power management circuit is implemented external to the IC and includes a number of voltage regulators. Each of the power domains is coupled to receive power from one voltage regulators. During operation, the first power management circuit may send commands requesting the change of one or more voltages provided to the IC. The second power management circuit may respond by performing the requested voltage change(s), and may also provide telemetry data to the first power management circuit. The second power management circuit may also provide telemetry data responsive to receiving a no operation command from the first power management circuit.

    Abstract translation: 公开了一种用于提供用于功率控制功能的遥测的方法和装置。 一种系统包括具有第一电源管理电路的集成电路(IC)。 IC还包括多个不同功率域内的多个功能电路块。 第二电源管理电路在IC外部实现并且包括多个电压调节器。 每个电源域被耦合以从一个电压调节器接收电力。 在操作期间,第一电源管理电路可以发送请求改变提供给IC的一个或多个电压的命令。 第二电力管理电路可以通过执行所请求的电压变化来响应,并且还可以向第一电力管理电路提供遥测数据。 第二电力管理电路还可以响应于从第一电力管理电路接收无操作命令来提供遥测数据。

    Parameter-Based Sensor Selection
    4.
    发明申请
    Parameter-Based Sensor Selection 审中-公开
    基于参数的传感器选择

    公开(公告)号:US20160054788A1

    公开(公告)日:2016-02-25

    申请号:US14466315

    申请日:2014-08-22

    Applicant: Apple Inc.

    Abstract: A method and apparatus for parameter-based sensor selection is disclosed. In one embodiment, a system includes an integrated circuit (IC) having a first power management circuit, and a second power management circuit external to the IC. The IC includes various functional units implemented in various power domains, while the second power management circuit (which may be implemented on an IC) includes a number of voltage regulators for providing power to the power domains. The second power management circuit also includes sensors that provide data about a system parameter, with the data being provided at telemetry to the first power management circuit. When the system parameter is less than a first threshold, the telemetry data may be based on a first sensor. When the system parameter is greater than the first threshold, the telemetry data may be based on a second sensor.

    Abstract translation: 公开了一种用于基于参数的传感器选择的方法和装置。 在一个实施例中,系统包括具有第一电源管理电路的集成电路(IC)和IC外部的第二电源管理电路。 IC包括实现在各种功率域中的各种功能单元,而第二功率管理电路(其可以在IC上实现)包括用于向电力域提供电力的多个电压调节器。 第二电力管理电路还包括提供关于系统参数的数据的传感器,数据在遥测中提供给第一电力管理电路。 当系统参数小于第一阈值时,遥测数据可以基于第一传感器。 当系统参数大于第一阈值时,遥测数据可以基于第二传感器。

    Method and Apparatus for Providing Telemetry for Power Management Functions
    7.
    发明申请
    Method and Apparatus for Providing Telemetry for Power Management Functions 有权
    为电源管理功能提供遥测的方法和装置

    公开(公告)号:US20160054773A1

    公开(公告)日:2016-02-25

    申请号:US14466205

    申请日:2014-08-22

    Applicant: Apple Inc.

    CPC classification number: G06F1/3203 G06F1/3296 Y02D10/172

    Abstract: A method and apparatus for providing telemetry for use in power control functions is disclosed. A system includes an integrated circuit (IC) having a first power management circuit. The IC also includes a number of functional circuit blocks within a number of different power domains. A second power management circuit is implemented external to the IC and includes a number of voltage regulators. Each of the power domains is coupled to receive power from one voltage regulators. During operation, the first power management circuit may send commands requesting the change of one or more voltages provided to the IC. The second power management circuit may respond by performing the requested voltage change(s), and may also provide telemetry data to the first power management circuit. The second power management circuit may also provide telemetry data responsive to receiving a no operation command from the first power management circuit.

    Abstract translation: 公开了一种用于提供用于功率控制功能的遥测的方法和装置。 一种系统包括具有第一电源管理电路的集成电路(IC)。 IC还包括多个不同功率域内的多个功能电路块。 第二电源管理电路在IC外部实现并且包括多个电压调节器。 每个电源域被耦合以从一个电压调节器接收电力。 在操作期间,第一电源管理电路可以发送请求改变提供给IC的一个或多个电压的命令。 第二电力管理电路可以通过执行所请求的电压变化来响应,并且还可以向第一电力管理电路提供遥测数据。 第二电力管理电路还可以响应于从第一电力管理电路接收无操作命令来提供遥测数据。

    Mechanism for Saving Power on a Bus Interface

    公开(公告)号:US20220035433A1

    公开(公告)日:2022-02-03

    申请号:US16947440

    申请日:2020-07-31

    Applicant: Apple Inc.

    Abstract: Systems, apparatuses, and methods for saving power on a bus interface are described. A system includes a host, a device, and a repeater interposed between the host and the device. While the host and device are in a low-power state, the repeater monitors a first bus to determine if the device has woken up. When the repeater detects a remote wake-up event initiated by the device, the repeater generates an interrupt which is sent to the host. The host responds to the interrupt by initiating a resume wake-up event procedure that assumes the device is still asleep. In this way, the host is able to stay in the low-power state longer while also using a wake-up procedure that does not require the host to be aware of the existence of the repeater.

    Interface emulator using FIFOs
    10.
    发明授权

    公开(公告)号:US10049073B2

    公开(公告)日:2018-08-14

    申请号:US15621265

    申请日:2017-06-13

    Applicant: Apple Inc.

    Abstract: An interface emulator for an IC is disclosed. An interface emulator includes a first first-in, first-out memory (FIFO) and a second FIFO. The first FIFO is coupled to receive data from an access port and a second FIFO coupled to receive data from at least one functional unit in the IC. The access port may be coupled to a device that is external to the IC. The external device may write information into the first FIFO, and this information may subsequently be read by a functional unit in the IC. Similarly, the functional unit may write information into the second FIFO, with the external device subsequently reading the information. Information may be written into the FIFOs in accordance with a predefined protocol. Thus, a particular type of interface may be emulated even though the physical connection and supporting circuitry for that interface is not otherwise implemented in the IC.

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