| 摘要 |
PURPOSE:To inexpensively correct an error by executing the parity check of data outputted from a control storage, and when an error exists, correcting the error and then storing the corrected data in a local memory of a service processor. CONSTITUTION:Address data outputted from a mu-sequencer 11 by a selector 12 are sent to the control storage 13 and an address is specified. A parity error is detected from the data read out from the control storage 13 by a parity check 15. At the time of detecting a parity error, the error is outputted to a service processor 14 through a line (a). The service processor 14 reads out address contents including the error from the control storage 13 and reads out the read contents to the local memory 14m. After correcting the error, the corrected data are written in the corresponding address of the control storage 13 through the selector 12. |
