This manual describes the electrical and mechanical aspects of the AT-MIO-16D and contains information concerning its operation and programming. The AT-MIO-16D, a member of the National Instruments AT Series of expansion boards for the IBM PC AT and compatible computers, combines the functionality of two popular National Instruments boards, the AT-MIO-16 and the PC-DIO-24. The AT-MIO-16D contains two logical sections–the MIO-16 circuitry and the DIO-24 circuitry. The MIO-16 circuitry contains a 12-bit ADC with up to 16 analog inputs, two 12-bit DACs with voltage outputs, eight lines of transistor-transistor logic (TTL) compatible digital I/O, and three 16-bit counter/timer channels for timing I/O. The DIO-24 circuitry is a 24-bit parallel, digital I/O interface based on an 82C55A programmable peripheral interface (PPI). If you require signal conditioning or additional analog inputs, you can use the SCXI signal conditioning modules, the SCXI multiplexer products, or the AMUX-64T multiplexer board.
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