| 摘要 |
PURPOSE:To shorten a readout time by selecting a readout start signal from a timing control circuit according to whether an error is detected or not in readout data, and by outputting it to a readout data register. CONSTITUTION:When data 101 read out of a storage device 1 has no error, the access time of data readout operation is only the sum of a data readout time regarding the storage time 1 and the time when the readout data 101 propagates in an error bit correcting circuit 23, thereby shortening the memory access time. If the data 101 has an error, a signal selecting circuit 33 masks the 1st readout data latch signal 105a outputted from a timing control circuit 32 and selects a readout data latch signal 105b to send it to a readout data register 31. |
