Source identifier for result forwarding
    3.
    发明授权
    Source identifier for result forwarding 失效
    结果转发的源标识符

    公开(公告)号:US5634026A

    公开(公告)日:1997-05-27

    申请号:US440033

    申请日:1995-05-12

    IPC分类号: G06F9/38 G06F9/28

    摘要: In a method and apparatus for result forwarding, a source operand compare circuit for a reservation station for a superscalar processor having a plurality of execution units, includes a source identifier for identifying an execution unit that will produce a needed result. The source identifier is included with a rename tag associated with a respective source operand. A multiplexor controlled by the source identifier directs the result of an execution unit to a comparator. The comparator compares the rename tag with a specific reservation station identity. As a result of this comparison, the needed data result is supplied to the respective source operand.

    摘要翻译: 在用于结果转发的方法和装置中,用于具有多个执行单元的超标量处理器的预留站的源操作数比较电路包括用于识别将产生所需结果的执行单元的源标识符。 源标识符包含在与相应的源操作数相关联的重命名标签中。 由源标识符控制的复用器将执行单元的结果引导到比较器。 比较器将重命名标签与特定的保留站标识进行比较。 作为该比较的结果,将所需的数据结果提供给相应的源操作数。

    Fuse blow circuit
    4.
    发明授权
    Fuse blow circuit 失效
    保险丝吹风电路

    公开(公告)号:US5404049A

    公开(公告)日:1995-04-04

    申请号:US146253

    申请日:1993-11-02

    IPC分类号: H01H85/46 G11C17/18 H02H7/20

    CPC分类号: G11C17/18

    摘要: A chip can be provide with circuits to electrically read, blow and latch fuses. The circuit allows use of existing I/O pads used for other functions on a chip to drastically reduce the number of I/O required to blow fuses. The circuits also share critical high current carrying lines with no impact on fuse functionality and device reliability. By offering of complex fuse operations such as electrical override, even after they had been blown, essential for product screening and product diagnostics. The circuit provides a fuse blow circuit fed by a fuse sense circuit and fuse latch circuit. Stored addresses in an address buffer addresses the fuses with two sets of inputs: one providing electrical override and/or fuse blow information; and the second one, normal fuse status. Fuse integrity before and after blow is maximized with a dual voltage source drive and low current sensing.

    摘要翻译: 一个芯片可以提供电路读取,打击和锁定保险丝。 该电路允许使用用于芯片上其他功能的现有I / O焊盘来大大减少熔断熔丝所需的I / O数量。 这些电路还共享关键的大电流承载线路,对熔断器功能和器件可靠性没有影响。 通过提供复杂的保险丝操作,例如电气超驰,甚至在吹制之后,对产品筛选和产品诊断至关重要。 该电路提供由熔丝检测电路和熔丝锁存电路馈送的保险丝熔断电路。 地址缓冲器中的存储地址用两组输入来对熔断器进行寻址:一个提供电气覆盖和/或保险丝熔断信息; 第二个,正常保险丝状态。 使用双电压源驱动和低电流检测来最大限度地提高吹入前后的保险丝完整性。

    METHOD TO IDENTIFY AND GENERATE CRITICAL TIMING PATH TEST VECTORS
    5.
    发明申请
    METHOD TO IDENTIFY AND GENERATE CRITICAL TIMING PATH TEST VECTORS 审中-公开
    识别和生成关键时序路径测试矢量的方法

    公开(公告)号:US20080263489A1

    公开(公告)日:2008-10-23

    申请号:US11738535

    申请日:2007-04-23

    IPC分类号: G06F17/50

    CPC分类号: G06F17/5031 G01R31/318364

    摘要: A method of testing critical paths in integrated circuits begins by simulating at least one operation of an integrated circuit chip design to produce chip timing data. Next, critical paths of the integrated circuit chip design are identified based on the chip timing data. The method applies functional test signals to simulations of the critical paths and monitors the number of times each of the functional test signals propagate from the beginning to the end of each of the critical paths. This allows the method to identify stress producing test signals as those that propagate along the critical paths more than other test signals. These stress producing test signals are applied to integrated circuit chip hardware manufactured according to the integrated circuit chip design to stress test the hardware.

    摘要翻译: 在集成电路中测试关键路径的方法开始于模拟集成电路芯片设计的至少一个操作以产生芯片定时数据。 接下来,基于芯片定时数据来识别集成电路芯片设计的关键路径。 该方法将功能测试信号应用于关键路径的仿真,并监视每个功能测试信号从每个关键路径的开始到结束传播的次数。 这允许该方法识别产生应力的测试信号,作为沿着关键路径比其它测试信号传播的信号。 这些应力产生测试信号被应用于根据集成电路芯片设计制造的集成电路芯片硬件来对硬件进行测试。