| 摘要 |
PROBLEM TO BE SOLVED: To prevent instability in electrical potential in signal wiring connecting electric parts such as a control circuit.SOLUTION: A game controlling device comprises: game controlling means generating and outputting operation request signal showing selection of memory space or I/O space; and outer section expanding means (181) capable of expanding I/O space. In the game controlling device, installed is a composite resistor (71) comprising: a plurality of resistance elements; a common terminal (COM) which is connected to one of terminal of the plurality of resistance elements and to which a predetermined voltage is applied from outside; and a plurality of individual terminals connected to the other terminal of each of the plurality of resistance elements. By connecting the individual terminals of the composite resistor with signal wiring for transmitting operation request signal from the game controlling means to the outer section expanding means and applying the predetermined voltage to the individual terminals via the resistance elements, a voltage level within a predetermined range may be transmitted to the outer section expanding means as the operation request signal. A part of the individual terminals among the plurality of individual terminals of the composite resistor is not connected with the signal wiring and subjected to the same voltage with the common terminal. |
