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    • 1. 发明专利
    • Microcomputer and wake-up detection method
    • 微型计算机和唤醒检测方法
    • JP2006215706A
    • 2006-08-17
    • JP2005026379
    • 2005-02-02
    • Denso Corp株式会社デンソー
    • KUME MASAHITOFUJITA YOICHI
    • G06F15/78G06F1/32
    • PROBLEM TO BE SOLVED: To suppress the wake-up of a CPU due to a noise in the wake-up of the CPU by an input signal to a microcomputer terminal. SOLUTION: This microcomputer 20 is provided with an input port 21 for fetching a signal to be inputted from the outside through a microcomputer terminal 10 and a CPU 22 for executing processing based on the status of a signal fetched from an input port 21. When the signal value of the microcomputer terminal 10 exceeds a predetermined threshold twice continuously, a twice matching filter 11 judges that a normal input signal has been obtained, and an edge detecting circuit 12 detects the edge of the signal passing the twice matching filter 11. COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:通过对微型计算机终端的输入信号,抑制由CPU唤醒中的噪声引起的CPU的唤醒。 解决方案:该微型计算机20设置有用于从外部通过微型计算机终端10获取要输入的信号的输入端口21和用于基于从输入端口21获取的信号的状态来执行处理的CPU 22 当微型计算机终端10的信号值连续两次超过预定阈值时,两次匹配滤波器11判断已经获得正常输入信号,并且边缘检测电路12检测通过两次匹配滤波器11的信号的边沿 (C)2006年,JPO&NCIPI
    • 2. 发明专利
    • In-vehicle electronic control device
    • 车内电子控制装置
    • JP2014115950A
    • 2014-06-26
    • JP2012271464
    • 2012-12-12
    • Denso Corp株式会社デンソー
    • KUME MASAHITOKANDA KOJI
    • G06F12/16G06F11/14
    • G06F11/0739G06F11/073G06F11/076G06F11/0784G06F11/0787G06F11/079G06F11/0793G06F11/14G06F11/1433G06F12/16
    • PROBLEM TO BE SOLVED: To perform appropriate processing while suppressing the useless consumption of power even when program abnormality occurs in an in-vehicle electronic control device configured such that when program abnormality is determined by memory check, a CPU(microcomputer) is resets by itself.SOLUTION: A CPU periodically performs memory check, and when determining that the storage content of the memory is abnormal, writes abnormality determination frequency (error frequency) in an error frequency storage register 32, and resets the CPU itself. Just after the reset of the CPU, a comparator 34 determines whether or not the error frequency stored in the error frequency storage register 32 is equal to or more than an error determination threshold before first memory check is performed. When the error frequency is equal to or more than the error determination threshold, an activation destination determiner 36 allows the CPU to execute a specific error handling processing program among programs in the memory.
    • 要解决的问题:即使在通过存储器检查确定程序异常的车载电子控制装置中发生程序异常时,即使在程序异常发生时也能够抑制无用功耗,进行适当的处​​理,CPU(微型计算机)自身复位 解决方案:CPU周期性地执行存储器检查,并且当确定存储器的存储内容异常时,将异常确定频率(错误频率)写入错误频率存储寄存器32中,并重置CPU本身。 在CPU复位之后,比较器34确定存储在错误频率存储寄存器32中的错误频率是否等于或大于执行第一存储器检查之前的错误确定阈值。 当误差频率等于或大于误差确定阈值时,激活目的地确定器36允许CPU在存储器中的程序中执行特定的错误处理处理程序。