| 摘要 |
PURPOSE:To transfer a data, by transferring the data and control information in separate channels, and also transferring the data in a data format which does not require decoding by a CPU, to a low rank device, thus increasing a terminal processing speed. CONSTITUTION:A CPU1 is placed in a host device 13, generates a data to be transferred to a low order device 14, and outputs it to the device 14. A CPU2 is placed in the device 14, decodes and recognizes control information from the CPU1 through channels 3, 4 and controls each part of the low order device. Also, the data from the CPU1 is transferred to the CPU2 through channels 5, 6. Also, in the device 14, a CRT controller 7 is connected to a function generator 10 and a refresh memory 9, and controls them. Moreover, a CRT display 8 is connected to the memory 9, and displays an output of the memory 9. |
