| 摘要 |
PURPOSE:To prevent a machine down by turning a buffer storage device to a one-bit errror correcting mode when detecting a one-bit error fixing trouble and separating a final separation unit, and preventing the loss of the whole buffer storage device. CONSTITUTION:At the time of an access request, data are sent from the buffer storage device 1 to a buffer storage device data register 7, and when a one-bit error is detected by an error checking circuit 2, the data corrected by a correction circuit 3 are written in the device 1 and read out again by the access request. If no error is detected, the data are regarded as an intermittent fault and the separation unit of the device 1 is separated. When the unit is the final separation unit, the one-bit error correcting mode for the buffer storage device 1 is set up to the device 1, and then all data for the access request are sent from the device 1 to the buffer storage device data register through the correction circuit 3. |
