Data protection method for a semiconductor memory and corresponding protected memory device
    1.
    发明公开
    Data protection method for a semiconductor memory and corresponding protected memory device 失效
    一种用于半导体存储器件的数据备份的方法和相应的受保护的存储器装置

    公开(公告)号:EP0926601A1

    公开(公告)日:1999-06-30

    申请号:EP97830717.1

    申请日:1997-12-24

    Abstract: The invention relates to a method of protecting data in a semiconductor electronic memory comprising a memory matrix (2) and respective matrix address decoding (3) and predecoding (4) blocks. The method consists of using a protected memory portion (5) within said matrix (2) and respective dedicated decoding portions (6,7) for storing, into the protected portion (5), a protection code (CP) external to the address area of the matrix (2).
    The protection code (CP) can only be written and/or read through a command interpreter (8).

    Abstract translation: 本发明涉及保护数据在半导体电子存储器包括存储器矩阵的方法(2)和相应的矩阵地址译码(3)和预解码(4)块。 所述基质内使用受保护的存储器部分(5)的方法,besteht(2)以及用于存储,进入外部的地址区中的受保护的部分(5),一个保护码(CP)各自专用的解码部(6,7) 矩阵的(2)。 保护代码(CP)只能通过一个命令解释器(8)被写入和/或读出。

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