| 摘要 |
PURPOSE:To shorten a read/write time for one word and to eliminate the need for packing of data in order to decrease the processing time, by constituting a memory module every bits at the same bit position of each word. CONSTITUTION:In a 1-word read mode of Y direction, a memory control part 1 activates just one of chip selection signals 40-47. In this case, the part 1 outputs the internal addresses eight times with replacement using an offset value 17. The data read out every bit is supplied to a shift register 4. In a 1-word write mode of Y direction, the part 1 outputs the internal addresses eight times with replacement using the value 17 like in the read mode. Then data are written to modules 20-27. In such a way, the memory modules are constituted every bit at the same bit position of each word. In such a way the time required for 1- word read/write of Y direction is reduced and eliminates the need for packing of data. Thus the processing time is reduced. |
