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    • 1. 发明授权
    • Hardware-based automatic clock gating
    • 基于硬件的自动时钟门控
    • US09081517B2
    • 2015-07-14
    • US13223282
    • 2011-08-31
    • Kleanthes KoniarisJosh P. de CesareTimothy J. MilletJung Wook ChoErik Machnicki
    • Kleanthes KoniarisJosh P. de CesareTimothy J. MilletJung Wook ChoErik Machnicki
    • G06F1/32G06F1/10G06F1/24
    • G06F1/10G06F1/24G06F1/3237Y02D10/128
    • A system and method for automatically updating with hardware clock tree settings on a system-on-a-chip (SOC). A SOC includes a hardware clock control unit (HCCU) coupled to a software interface and a clock tree. The SOC also includes multiple integrated circuit (IC) devices, wherein each IC device receives one or more associated core clocks provided by one or more phase lock loops (PLLs) via the clock tree. The HCCU receives a software-initiated request specifying a given IC device is to be enabled. The HCCU identifies one or more core clocks used by the given IC device. For each one of the identified core clocks, the HCCU configures associated circuitry within the clock tree to generate an identified core clock. The HCCU may also traverse the clock tree and disable clock generating gates found not to drive any other enabled gates or IC devices.
    • 一种使用片上系统(SOC)上的硬件时钟树设置自动更新的系统和方法。 SOC包括耦合到软件接口和时钟树的硬件时钟控制单元(HCCU)。 SOC还包括多个集成电路(IC)器件,其中每个IC器件经由时钟树接收由一个或多个锁相环(PLL)提供的一个或多个相关核心时钟。 HCCU接收软件发起的请求,指定要启用给定的IC设备。 HCCU识别给定IC器件使用的一个或多个核心时钟。 对于每个识别的核心时钟,HCCU配置时钟树内的相关电路以产生识别的核心时钟。 HCCU还可以遍历时钟树,并禁用发现不驱动任何其他启用的门或IC设备的时钟生成门。
    • 3. 发明申请
    • HARDWARE-BASED AUTOMATIC CLOCK GATING
    • 基于硬件的自动时钟增益
    • US20130055004A1
    • 2013-02-28
    • US13223282
    • 2011-08-31
    • Kleanthes KoniarisJosh P. de CesareTimothy J. Miller
    • Kleanthes KoniarisJosh P. de CesareTimothy J. Miller
    • G06F1/12
    • G06F1/10G06F1/24G06F1/3237Y02D10/128
    • A system and method for automatically updating with hardware clock tree settings on a system-on-a-chip (SOC). A SOC includes a hardware clock control unit (HCCU) coupled to a software interface and a clock tree. The SOC also includes multiple integrated circuit (IC) devices, wherein each IC device receives one or more associated core clocks provided by one or more phase lock loops (PLLs) via the clock tree. The HCCU receives a software-initiated request specifying a given IC device is to be enabled. The HCCU identifies one or more core clocks used by the given IC device. For each one of the identified core clocks, the HCCU configures associated circuitry within the clock tree to generate an identified core clock. The HCCU may also traverse the clock tree and disable clock generating gates found not to drive any other enabled gates or IC devices.
    • 一种使用片上系统(SOC)上的硬件时钟树设置自动更新的系统和方法。 SOC包括耦合到软件接口和时钟树的硬件时钟控制单元(HCCU)。 SOC还包括多个集成电路(IC)器件,其中每个IC器件经由时钟树接收由一个或多个锁相环(PLL)提供的一个或多个相关核心时钟。 HCCU接收软件发起的请求,指定要启用给定的IC设备。 HCCU识别给定IC器件使用的一个或多个核心时钟。 对于每个识别的核心时钟,HCCU配置时钟树内的相关电路以产生识别的核心时钟。 HCCU还可以遍历时钟树,并禁用发现不驱动任何其他启用的门或IC设备的时钟生成门。