| 摘要 |
A mode designation device designates a serial interface mode or a parallel interface mode. A parallel/serial bridge circuit is operable in a serial interface mode, and converts, into a serial interface signal, a parallel interface signal transferred via a parallel interface bus. The resultant signal is transmitted to a serial interface bus. The serial interface bus is connected to particular pins that are included in the parallel interface connector and are not used by a parallel interface. The parallel/serial bridge circuit further converts, into a parallel interface signal, a serial interface signal transferred via the serial interface bus. The resultant signal is transmitted to the parallel interface bus.
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