| 摘要 |
PURPOSE:To improve the resolution of a faulty range by judging the state of a read flag circuit concerning error, and identifying whether the error is generated by reading or reading/writing. CONSTITUTION:The identification for the write/read of data to plural words in a register file part 200 is executed by plural read flag circuits 210-213. A parity check circuit 240 detects the error of the data read from the file part 200. When the error is detected in the read data, the states of the circuits 210-213 are identified and the fault range of the circuit is selected. Thus, since the state of the read flag circuit is judged and it is identified whether the error is generated by reading or reading/writing when the error is detected in the read data, the fault range of the circuit including the register file can be specified. |
