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热词
    • 1. 发明授权
    • Method and circuit arrangement for monitoring the operation of a processor
    • 用于监视处理器的操作的方法和电路装置
    • US07080281B2
    • 2006-07-18
    • US10355525
    • 2003-01-31
    • Axel MuellerUwe Zimmerman
    • Axel MuellerUwe Zimmerman
    • G06F11/00
    • G06F11/3055G06F11/0757G06F11/3024
    • A counter (2) alters its counter variable (C) on the basis of a clock signal which is generated by an oscillator (3). If the reset signal (CT1) intermittently transmitted by the processor (1) during normal operation is absent, the count variable (C) reaches a first limit value (Cgr1). The counter (2) then sends an interrupt signal (IR) to the processor (1). If the reset signal (CT) continues to be absent and the count variable (C) reaches a second limit value (Cgr2), the counter (2) transmits a hardware reset signal (HWR) to the processor (1). This signal or the result of this signal (HWR) is also used to reset the counter (2), i.e. the count variable (C) is set to a predetermined start value (CSTART). Thus, in the absence of the reset signal (CT1) from the processor (1), an interrupt (IR) and a hardware reset signal (HWR) are cyclically transmitted.
    • 计数器(2)基于由振荡器(3)产生的时钟信号改变其计数器变量(C)。 如果在正常操作期间由处理器(1)间歇地发送的复位信号(CT <1> 1 )不存在,则计数变量(C)达到第一限制值(C&lt; gr1&lt; )。 计数器(2)然后将中断信号(IR)发送到处理器(1)。 如果复位信号(CT)继续不存在,并且计数变量(C)达到第二限制值(C&gt; gr2&lt;&lt;&gt;),计数器(2)将硬件复位信号(HWR)发送到 处理器(1)。 该信号或该信号(HWR)的结果也用于复位计数器(2),即计数变量(C)被设置为预定的起始值(C SUB START)。 因此,在不存在来自处理器(1)的复位信号(CT&lt; 1&gt; 1&gt;)的情况下,循环地发送中断(IR)和硬件复位信号(HWR)。