利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

4 条记录 (耗时 0.016 秒)

    Method and system for direct access memory testing of an integrated circuit
    1.
    发明授权
    Method and system for direct access memory testing of an integrated circuit 失效
    用于集成电路直接存取存储器测试的方法和系统

    公开(公告)号：US08176370B2

    公开(公告)日：2012-05-08

    申请号：US10940146

    申请日：2004-09-13

    申请人： Jonathan Lee ,  Xiaogang Zhu ,  Andrew S. Hwang

    发明人： Jonathan Lee ,  Xiaogang Zhu ,  Andrew S. Hwang

    IPC分类号： G11C29/00

    CPC分类号： G11C29/48 ,  G11C2029/0401

    摘要： Aspects of the invention may be found in a method and system for testing an integrated circuit and may comprise an address selector, data selector and staging register coupled to a signal generator. The address selector may comprise a direct access memory test (DAMT) mode address control input and one or more output address pins coupled to an embedded memory device under test (DUT). The data selector may be coupled to at least one data pin and control pin of the signal generator and may comprise a DAMT mode data control input and at least one data output coupled to embedded memory DUT. A staging register comprising a first output clock rate which is one-quarter (¼) its input clock rate and matches a DUT burst write frequency may be coupled to an input of the data selector. A DAMT mode control may configure the memory DUT for DAMT operation.

    摘要翻译： 可以在用于测试集成电路的方法和系统中找到本发明的方面，并且可以包括地址选择器，数据选择器和耦合到信号发生器的分级寄存器。 地址选择器可以包括直接访问存储器测试（DAMT）模式地址控制输入和耦合到被测嵌入式存储器件（DUT）的一个或多个输出地址引脚。 数据选择器可以耦合到信号发生器的至少一个数据引脚和控制引脚，并且可以包括DAMT模式数据控制输入和耦合到嵌入式存储器DUT的至少一个数据输出。 包括其输入时钟速率四分之一（¼）的第一输出时钟速率并与DUT突发写入频率匹配的分级寄存器可以耦合到数据选择器的输入端。 DAMT模式控制可以配置用于DAMT操作的存储器DUT。

    Method and system for providing power management for an integrated gigabit ethernet controller
    2.
    发明授权
    Method and system for providing power management for an integrated gigabit ethernet controller 有权
    为集成千兆以太网控制器提供电源管理的方法和系统

    公开(公告)号：US07689852B2

    公开(公告)日：2010-03-30

    申请号：US10887068

    申请日：2004-07-08

    申请人： Andrew S. Hwang ,  Augustine Jian Heng Kuo ,  Michael James Hurt

    发明人： Andrew S. Hwang ,  Augustine Jian Heng Kuo ,  Michael James Hurt

    IPC分类号： G06F1/28

    CPC分类号： G06F1/28

    摘要： Certain aspects of a system for controlling power for a network interface controller device may comprise a precision voltage comparator that may instantaneously detect ramp up of a main voltage corresponding to a main voltage source in order to control the network interface controller device. A power monitor may detect when a threshold voltage of the main voltage is reached during the ramp up. A main voltage source switch and an auxiliary voltage source switch may switch an output from an auxiliary voltage to the main voltage source without the switches being simultaneously on. The power monitor may determine whether the main voltage is ramping up in excess of a determined rate and if so, may decrease a rate at which the main voltage ramps up. A current limiter and/or the power monitor may monitor and limit an inrush current caused during main voltage ramp up.

    摘要翻译： 用于控制网络接口控制器设备的电源的系统的某些方面可以包括精密电压比较器，其可以瞬时检测对应于主电压源的主电压的上升以便控制网络接口控制器设备。 功率监视器可以在升高期间检测何时达到主电压的阈值电压。 主电压源开关和辅助电压源开关可以将辅助电压的输出切换到主电压源，而不会同时打开开关。 功率监视器可以确定主电压是否正在上升超过确定的速率，如果是，则可以降低主电压上升的速率。 电流限制器和/或功率监视器可以监视和限制在主电压升高期间引起的浪涌电流。