公开(公告)号：EP1122645A1

公开(公告)日：2001-08-08

申请号：EP98941867.8

申请日：1998-09-14

申请人： FUJITSU LIMITED

发明人： LIN, Chung-hsiung, Fujitsu Digital Tech. Ltd ,  MORIMOTO, Shigeru, Fujitsu Limited

IPC分类号： G06F11/10 ,  G06F12/16

CPC分类号： G06F11/1012 ,  G06F11/1032

摘要： In a memory apparatus using a versatile memory device having no parity function, a memory apparatus fault diagnostic function is implemented with which a written data fault diagnosis is made and upon the memory apparatus faults the data are restorable as much as possible. Input data are parity operated, encoded in a predetermined correlation, and stored in a first address of one memory. The data stored in the first address are then read and the read data are parity operated. The result of the parity operation of the read data is compared with the result of the parity operation of the input data stored in the second address. When a coincidence occurs as a result of this comparison, the data read from the first address are output as valid, whereas when a non-coincidence occurs as a result of this comparison, the encoded data read from the second address are decoded for output.

摘要翻译： 在使用不具有奇偶校验功能的多功能存储装置的存储装置，存储器装置故障诊断功能被实现与一个写入的数据的故障诊断是由和在所述存储装置的故障的数据是可恢复的尽可能。 输入数据被奇偶性操作时，在预定的相关进行编码，并存储在一个存储器中的第一地址。 然后存储在第一地址中的数据被读出并读出的数据是奇偶校验操作。 操作数据的奇偶校验的结果被读出与存储在第二地址中的操作输入数据的奇偶校验的结果相比较。 当一致的发生是由于该比较的结果，从第一地址读出的数据被输出作为有效，而当一个不一致的发生是由于该比较的结果，从所述第二地址读出的编码数据进行解码用于输出。