| 摘要 |
PURPOSE:To achieve high speed data transfer, by providing a means giving a buffer storing data transferred between an input/output controller and an input/ output device and transferring the data of the buffer to the input/output controller with the start from the input/output controller. CONSTITUTION:A driver 44 provided in an input/output controller 4' is connected to a receiver 91 having an AND function provided in a data cash device 9 via a data cash tag effective line 10 in 1 bit. An output bus/tag bus 6 and the like are connected to the receiver 91 and a driver 92 is connected to an input bus and the like 8. The receiver 91 and the driver 92 are connected to a buffer storing data provided in the data cash device 9 similarly, i.e., to a memory 93. |
