| 摘要 |
PURPOSE:To prevent the deletion and deformation of memory contents by providing a nonvolatile memory unit into a controller installed, where no electrostatic influence is given, away from a display unit. CONSTITUTION:Data to be displayed on display unit 16 are being stored in memory 13 of controller 11. Data transfer to display unit 16 is started by a constant-period pulse generated by timer 15. On receiving this pulse, scanning counter 12 and data transmission control circuit 14 both start operating. In scanner 16, addresse from the controller are stored in address register 18 and data are sent to display data memory 19. Synchronizing with display counter 21, display cantrol circuit 20 reads out and display the contents of data memory 19 on display part 22. |
