| 摘要 |
PURPOSE:To exactly move a cursor in a short time, by utilizing a written content setting an A/D-converted output as the address of a table memory. CONSTITUTION:The change of a voltage from a joy stick mechanism part 41 become the addresses of table memories 24 and 25 via ADCs 42 and 43, and designate the data of the memories 24 and 25. A microprocessor MP45 reads out designated data from the memories 24 and 25 based on a request from a display device 30, and transmits them to the device 30 via a communication control part TC46 and a communication cable (a). Bus controllers 28a-28d control a data bus (b) by the MP45, and the MP45 reads out a signal at each place. The device 30 analyzes the data of a TC31 by an MP32, and supplies the data of display control. The data of a host device is analyzed via a TC38, and the data from an operator is analyzed via a keyboard 34, by the MP32 respectively. Write on a picture memory 36 is instructed to a write circuit 35 by the MP32, and a graphic and a character are written, and are displayed on a cathode ray tube 37. In such a way, it is possible to move the cursor exactly in a short time.
|
