| 摘要 |
PURPOSE:To eliminate a delay of read-out due to competition, by changing the position of only a part changed by write in a read-out data, to a write data, and setting it as a read-out data, in case when a read-out address has coincided with a write address. CONSTITUTION:Contents of write data lines 26-33 and read-out data lines 45- 52, which have been connected to data part units 1-8 are selected through selecting circuits 18-25, and are outputted to outlines 62-69. On the other hand, a write address 35 is compared with a read-out address 36 by a comparing circuit 9, this result is compared with each write approval data 37-44 by AND circuits 10-17, and when the write address has coincided with the read-out address, output lines 54-61 of the units 1-8 whose wirte has been approved are turned on. Subsequently, when the output lines 54-61 are off and on, the read-out data and the write data are outputted, respectively, to the output lines 62-69. In this way, a delay of read-out of a data due to competition of read- out and write is removed. |
