| 摘要 |
PURPOSE:To shorten the relief processing time of soft errors caused by the alpha-line of a storage element, by reading out the whole address spaces of a storage circuit at the cycle of refreshing operations and operating the storage circuit in the pair of rewriting and refreshing operations. CONSTITUTION:A refresh interrupting signal 14 is generated by a refresh interruption controlling circuit 13 and inputted in an internal address generating circuit 15 to perform refreshing operations periodically. Then an address of a storage circuit 6 is read out and, when an error is found in the data, the rewriting operation is again performed to the same address through an error correction detecting circuit 8 and error correcting code generator 4. The relief of soft generated in the whole address spaces of the storage circuit 6 can be performed effectively by performing ordinary refreshing operations thereafter. |
