| 摘要 |
PROBLEM TO BE SOLVED: To reduce the load of a main control circuit, enhance the speed of displaying on a display, and miniaturize the display by supplying a circuit function to be attained in a divided circuit, which is dividedly formed in a main control circuit, to a display control circuit via an electric connecting means. SOLUTION: A display 1 is controlled by a controller constituted of a main microcomputer as a center. A display processing part 6 having a sub-MCU 5 is formed in the display 1 so as to reduce the load of a main MCU of the controller and a part of a circuit function necessary for a display control circuit for controlling the display 1 is dividedly formed in the main control circuit. For example, in this case, a power-on-reset signal is fed to the sub-MCU 5 of the display processing part 6 provided in the display 1 from a power supply reset formed in the main control circuit so as to attain the circuit function in the display control circuit. In this case, the power-on-reset signal is commonly used for the main control circuit and the display control circuit. |
