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In-Circuit wiring diagram for uPD780973 MCU, In-Circuit wiring diagram for uPD78(F)0948/49 MCU, In-Circuit wiring diagram for uPD780828A MCU. This manual will guide you through the installation and operation of the ETL uPD780973 Programmer, referenced hereafter as the uPD78-Programmer. The uPD78-Programmer has been designed for Reading, Programming of EEPROM contents of the next NEC Microcontroller Unit (MCU): The uPD78-Programmer includes two LED’s and mode jumper (Figure 1). Color LED’s indicates programmer state and external power supply voltage (Table 1, 2). All signals on In-Circuit Programmer connector are active. Signals on In-Circuit Programmer connector are deactivated (in three state). Connect the power supply source to uPD78-Programmer (an external 12 V DC power supply source is required). In case when you should see message: “uPD780973 Programmer Ver-X.X not found”, change COM port number. To do that select “Tools” menu item and than select “Comm Port Options”. Select new COM port number. After pressing “OK” button the new setting will be applied and software reattempts connection with programmer. In-Circuit programming interface is basic for uPD78-Programmer. With this interface uPD78-Programmer automatically detects target MCU bus speed. Ceramic resonator connected to NEC MCU must be in range from 4 MHz to 8.372 MHz. Signals required for communication with target MCU described in Table 3.
Tags : power supply voltage, dc power supply, ceramic resonator, microcontroller unit, circuit programming, port options, comm port, programming interface, mcu, supply source, target, select tools, bus speed, etl, ok button
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