| 摘要 |
PURPOSE:To facilitate printed board mounting and reduce mounting area by permitting the actual terminal arrangement of a microcomputer or a gate array to be accorded with the terminal arrangement of a circuit component connected with the microcomputer or a gate array. CONSTITUTION:An output port P7, whose output is electrically turned off, is prepared between the output port P5 of a microcomputer 1 and an output port P6 for wiring an output port P3. Since the display port of a displayer (FL) normally outputs p-channel output with pull-down resistance, the output port P7 permits the low pull-down potential fixed output by the pull-down resistance. Thus, the output port P7 operates in the same manner as the output port P3 by connecting the output port P3 with the output port P7. Therefore, the terminal arrangement of the microcomputer 1 becomes same as the terminal arrangement of an FL display tube 2, and each terminal is simply connected without providing jumper line, etc.
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