| 摘要 |
PURPOSE: A circuit for generating identification information in a wireless controller is provided to be used in a mobile controller using a battery by minimizing power consumption and easily changing identification information. CONSTITUTION: If a port 1(8) of a microcomputer(4) is maintained as a high level, a current flows in a base of a transistor(14) and the transistor(14) is turned on. A power is supplied to 3-state buffers(12,12') and the operation of the 3-state buffers(12,12') is enabled. If identification information of a DIP(Dual Inline Package) switch 1(13) is selected by using enable ports(EN1,EN2)(9,10) of the 3-state buffers(12,12') in an expanding mode, the EN1(9) of the 3-state buffer(12) is enabled, identification information is read through a bus line(11), and read identification information is stored in a register of the microcomputer(4). If identification information of the DIP switch 2(13') is read, the EN2(10) of the 3-state buffer(12') is enabled, identification information is read through the bus line(11), and read identification information is stored in the register of the microcomputer(4). |
