| 摘要 |
PURPOSE:To grasp simply and precisely the operation of a multibus by forming the 1st switch applying a bus access right to the monitor side and the 2nd switch returning the operation of the multibus to the normal status. CONSTITUTION:When a stop request switch 17 is depressed, a flip flop (FF) 11 for generating a bus access request signal BREQ is set up, so that the movement on a bus MB is stopped, the monitor 100 side acquires the bus access right and the signal on the bus MB is displayed on a display device 2. When the switch 17 is depressed again, the FF11 is reset, the monitor 100 side gives up the bus access right and the movement on the bus MB is restarted. However, the FF11 is set up again by the succeeding command signal, the monitor 100 side acquires the bus access right again and the signal on the bus MB is displayed on the display device 2. When a start request switch 18 is depressed, the FF11 is reset and the movement on the bus MB is returned to the normal status. |
