Power supply monitor for detecting faults during scan testing
    21.
    发明授权
    Power supply monitor for detecting faults during scan testing 有权
    用于在扫描测试期间检测故障的电源监视器

    公开(公告)号:US09194914B2

    公开(公告)日:2015-11-24

    申请号:US13943405

    申请日:2013-07-16

    CPC classification number: G01R31/318575 G01R31/318547

    Abstract: Some embodiments of a power supply monitor include a measurement circuit to measure a voltage provided to the power supply monitor, a comparator to compare the voltage to a predetermined voltage threshold, and an interface to provide, during a scan test of a processing device including the power supply monitor, a fault signal in response to the voltage being below the voltage threshold. Some embodiments of a method include providing a first test pattern to one or more power supply monitors associated with one or more circuit blocks in the processing device and capturing a first result generated by the power supply monitor(s) based on the first test pattern. The first result indicates whether a voltage provided to the circuit block(s) is below a voltage threshold.

    Abstract translation: 电源监视器的一些实施例包括用于测量提供给电源监视器的电压的测量电路,用于将电压与预定电压阈值进行比较的比较器以及在包括所述电源监视器的处理设备的扫描测试期间提供的接口 电源监视器,响应于电压低于电压阈值的故障信号。 方法的一些实施例包括向与处理设备中的一个或多个电路块相关联的一个或多个电源监视器提供第一测试图案,并且基于第一测试图案捕获由电源监视器产生的第一结果。 第一结果指示提供给电路块的电压是否低于电压阈值。

    Master/slave frequency locked loop
    26.
    发明授权

    公开(公告)号:US10425089B2

    公开(公告)日:2019-09-24

    申请号:US15850593

    申请日:2017-12-21

    Abstract: A master/slave configuration of a frequency locked Loop (FLL) decouples the process, target voltage, temperature (PVT) tracking goals of locking the loop from adapting the clock frequency in response to voltage droops in the supply. A master oscillator circuit receives a regulated supply voltage and supplies a master oscillator signal. A control circuit supplies a master frequency control signal to control a frequency of the master oscillator signal to a target frequency. A slave oscillator circuit is coupled to a regulated supply voltage and a droopy supply voltage and supplies a slave oscillator signal having a frequency responsive to a slave frequency control signal that is based on the master frequency control signal. The frequency of the second oscillator signal is further responsive to a voltage change of the droopy supply voltage.

    DISTRIBUTION OF POWER GATING CONTROLS FOR HIERARCHICAL POWER DOMAINS
    29.
    发明申请
    DISTRIBUTION OF POWER GATING CONTROLS FOR HIERARCHICAL POWER DOMAINS 有权
    用于分层电源域的功率控制的分布

    公开(公告)号:US20140298068A1

    公开(公告)日:2014-10-02

    申请号:US13854434

    申请日:2013-04-01

    CPC classification number: G06F1/3287 Y02D10/171

    Abstract: An integrated circuit device includes a first module disposed within a first power domain, a second module disposed in a second power domain that is a sub-domain of the first power domain, first power gating logic, and second power gating logic. The first power gating logic generates a first virtual power supply for the first module. The second power gating logic is powered by the first virtual power supply for generating a second virtual power supply for the second power domain.

    Abstract translation: 集成电路装置包括布置在第一功率域内的第一模块,设置在作为第一功率域的子域的第二功率域中的第二模块,第一功率门控逻辑和第二功率门控逻辑。 第一电源门控逻辑为第一模块生成第一虚拟电源。 第二电源门控逻辑由第一虚拟电源供电,用于为第二电源域产生第二虚拟电源。

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