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    • 3. 发明授权
    • Debug circuit for an integrated circuit
    • 集成电路调试电路
    • US09476937B2
    • 2016-10-25
    • US14514403
    • 2014-10-15
    • Garima ShardaSunny GuptaAkshay K. PathakNidhi Sinha
    • Garima ShardaSunny GuptaAkshay K. PathakNidhi Sinha
    • G01R31/317
    • G01R31/31705
    • An integrated circuit (IC) operable in functional and debug modes includes a debug enable circuit, a pad control register, a debug circuit, a pad configuration register, and an input/output (IO) pad. The debug circuit receives a functional signal from a circuit monitoring circuit, a reference signal, a debug control signal from the debug enable circuit, and pull-enable control and pull-type select control signals from the pad control register, and generates pull-enable and pull-type select signals. The pad configuration register receives the pull-enable and pull-type select signals and configures the IO pad in one of logic low, logic high, and high impedance states. When the IO pad is in either of the logic high and low states longer than a predetermined time period, then the IO pad indicates that the IC is held in a reset phase of a reset sequence.
    • 在功能和调试模式下可操作的集成电路(IC)包括调试使能电路,焊盘控制寄存器,调试电路,焊盘配置寄存器和输入/输出(IO)焊盘。 调试电路接收来自电路监视电路的功能信号,参考信号,来自调试使能电路的调试控制信号,以及来自焊盘控制寄存器的上拉使能控制和拉取型选择控制信号,并产生上拉使能 和拉式选择信号。 焊盘配置寄存器接收拉电阻和上拉选择信号,并将IO焊盘配置为逻辑低电平,逻辑高电阻和高阻抗状态之一。 当IO垫处于比预定时间段长的逻辑高和低状态中的任何一个时,则IO垫指示IC保持在复位序列的复位阶段。
    • 4. 发明申请
    • ON-CHIP VOLTAGE REGULATOR
    • 片内电压调节器
    • US20130093505A1
    • 2013-04-18
    • US13275310
    • 2011-10-17
    • Sunny GuptaKumar AbhishekGarima ShardaSamaksh Sinha
    • Sunny GuptaKumar AbhishekGarima ShardaSamaksh Sinha
    • G05F1/10
    • G05F1/575
    • A digital logic controller for regulating a voltage of a SoC includes a first input for receiving a reference signal having a first property that is constant over a range of operating conditions of the SoC, and a second input for receiving a second signal that has a second property that is indicative of an operating condition of the SoC. The second property may vary over a range of operating conditions of the SoC. A comparator compares the first and second properties and the digital logic controller, based on the comparison, outputs to a regulation signal to a voltage regulator to regulate the voltage of the SoC at or near a target voltage that is higher than a minimum operating voltage of the SoC.
    • 用于调节SoC的电压的数字逻辑控制器包括用于接收具有在SoC的工作条件范围内恒定的第一特性的参考信号的第一输入端和用于接收第二信号的第二输入端 表示SoC的运行状况的属性。 第二个属性可能在SoC的一系列操作条件下变化。 比较器比较第一和第二特性和数字逻辑控制器,基于该比较,输出到调节信号到电压调节器,以调节在目标电压或其附近的目标电压的电压,该目标电压高于最低工作电压 SoC。
    • 5. 发明申请
    • DEBUG CIRCUIT FOR AN INTEGRATED CIRCUIT
    • 用于集成电路的调试电路
    • US20160109515A1
    • 2016-04-21
    • US14514403
    • 2014-10-15
    • Garima ShardaSunny GuptaAkshay K. PathakNidhi Sinha
    • Garima ShardaSunny GuptaAkshay K. PathakNidhi Sinha
    • G01R31/3177
    • G01R31/31705
    • An integrated circuit (IC) operable in functional and debug modes includes a debug enable circuit, a pad control register, a debug circuit, a pad configuration register, and an input/output (IO) pad. The debug circuit receives a functional signal from a circuit monitoring circuit, a reference signal, a debug control signal from the debug enable circuit, and pull-enable control and pull-type select control signals from the pad control register, and generates pull-enable and pull-type select signals. The pad configuration register receives the pull-enable and pull-type select signals and configures the IO pad in one of logic low, logic high, and high impedance states. When the IO pad is in either of the logic high and low states longer than a predetermined time period, then the IO pad indicates that the IC is held in a reset phase of a reset sequence.
    • 在功能和调试模式下可操作的集成电路(IC)包括调试使能电路,焊盘控制寄存器,调试电路,焊盘配置寄存器和输入/输出(IO)焊盘。 调试电路接收来自电路监视电路的功能信号,参考信号,来自调试使能电路的调试控制信号,以及来自焊盘控制寄存器的上拉使能控制和拉取型选择控制信号,并产生上拉使能 和拉式选择信号。 焊盘配置寄存器接收拉电阻和上拉选择信号,并将IO焊盘配置为逻辑低电平,逻辑高电阻和高阻抗状态之一。 当IO垫处于比预定时间段长的逻辑高和低状态中的任何一个时,则IO垫指示IC保持在复位序列的复位阶段。
    • 7. 发明授权
    • System for generating clock signal
    • 用于产生时钟信号的系统
    • US08760202B1
    • 2014-06-24
    • US13895344
    • 2013-05-15
    • Samaksh SinhaNiti GuptaSunny Gupta
    • Samaksh SinhaNiti GuptaSunny Gupta
    • H03L7/06
    • H03L7/10H03L2207/08
    • A system for generating a clock signal includes a phase-locked loop (PLL) and a voltage storage circuit. The PLL includes a voltage-controlled oscillator (VCO) that generates a clock signal based on a control voltage. The voltage storage circuit includes a unity-gain amplifier (UGA) and first, second and third switches. The first switch connects an input terminal of the UGA and an input of the VCO to sample the control voltage before the PLL transitions from RUN mode to STOP mode. The second switch connects the input and output terminals of the UGA to store the sampled control voltage when the PLL is in STOP mode. The third switch connects the output terminal of the UGA to the input terminal of a low pass filter (LPF) to provide the stored control voltage to the LPF when the PLL transitions from the STOP mode to the RUN mode.
    • 用于产生时钟信号的系统包括锁相环(PLL)和电压存储电路。 PLL包括基于控制电压产生时钟信号的压控振荡器(VCO)。 电压存储电路包括单位增益放大器(UGA)和第一,第二和第三开关。 第一个开关连接UGA的输入端和VCO的输入端,以便在PLL从RUN模式转换到STOP模式之前对控制电压进行采样。 当PLL处于STOP模式时,第二个开关连接UGA的输入和输出端,以存储采样的控制电压。 当PLL从STOP模式转换到RUN模式时,第三个开关将UGA的输出端连接到低通滤波器(LPF)的输入端,以将存储的控制电压提供给LPF。
    • 8. 发明授权
    • Digital logic controller for regulating voltage of a system on chip
    • 用于调节片上系统电压的数字逻辑控制器
    • US08689023B2
    • 2014-04-01
    • US13275310
    • 2011-10-17
    • Sunny GuptaKumar AbhishekGarima ShardaSamaksh Sinha
    • Sunny GuptaKumar AbhishekGarima ShardaSamaksh Sinha
    • G06F1/00
    • G05F1/575
    • A digital logic controller for regulating a voltage of a SoC includes a first input for receiving a reference signal having a first property that is constant over a range of operating conditions of the SoC, and a second input for receiving a second signal that has a second property that is indicative of an operating condition of the SoC. The second property may vary over a range of operating conditions of the SoC. A comparator compares the first and second properties and the digital logic controller, based on the comparison, outputs to a regulation signal to a voltage regulator to regulate the voltage of the SoC at or near a target voltage that is higher than a minimum operating voltage of the SoC.
    • 用于调节SoC的电压的数字逻辑控制器包括用于接收具有在SoC的工作条件范围内恒定的第一特性的参考信号的第一输入端和用于接收第二信号的第二输入端 表示SoC的运行状况的属性。 第二个属性可能在SoC的一系列操作条件下变化。 比较器比较第一和第二特性和数字逻辑控制器,基于该比较,输出到调节信号到电压调节器,以调节在目标电压或其附近的目标电压的电压,该目标电压高于最低工作电压 SoC。