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    • 6. 发明申请
    • SELF-TEST CIRCUITRY TO DETERMINE MINIMUM OPERATING VOLTAGE
    • 自检电路确定最小工作电压
    • US20060259840A1
    • 2006-11-16
    • US10908452
    • 2005-05-12
    • Wagdi AbadeerGeorge BracerasAnthony BonaccioKevin Gorman
    • Wagdi AbadeerGeorge BracerasAnthony BonaccioKevin Gorman
    • G01R31/28
    • G01R31/3004
    • A solution for determining minimum operating voltages due to performance/power requirements would be valid for a wide range of actual uses. The solution includes a test flow methodology for dynamically reducing power consumption under applied conditions while maintaining application performance via a BIST circuit. There is additionally provided a test flow method for dynamically reducing power consumption to the lowest possible stand-by/very low power level under applied conditions that will still be sufficient to maintain data/state information. One possible application would be for controlling the voltage supply to a group of particular circuits on an ASIC (Application Specific Integrated Circuit). These circuits are grouped together in a voltage island where they would receive a voltage supply that can be different from the voltage supply other circuits on the same chip are receiving. The same solution could be applied to a portion of a microprocessor (the cache logic control, for example).
    • 用于确定由于性能/功率要求而导致的最小工作电压的解决方案对于广泛的实际应用是有效的。 该解决方案包括测试流程方法,用于在应用条件下动态降低功耗,同时通过BIST电路保持应用性能。 另外提供了一种测试流程方法,用于在仍然足以维护数据/状态信息的应用条件下将功耗动态地降低到最低可能待机/极低功率水平。 一种可能的应用是用于控制对ASIC(专用集成电路)上的一组特定电路的电压供应。 这些电路分组在一个电压岛中,在那里它们将接收可以与同一芯片正在接收的其它电路的电压供给不同的电压源。 相同的解决方案可以应用于微处理器的一部分(例如,高速缓存逻辑控制)。