| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a switching control circuit which is reduced in the number of signal lines, is small in circuitry scale, and transmits/receives a signal by switching a plurality of modes. <P>SOLUTION: The switching control circuit 10 includes a serial-to-parallel converter 11, a rewritable storage device 12, and a decoder 13. The serial-to-parallel converter 11 performs serial-to-parallel conversion for converting an inputted first control signal into a first parallel signal, and outputs the first parallel signal. The rewritable storage device 12 has a write mode and a read mode selectively switched over, in response to a storage mode switching signal, stores data of the first parallel signal in the writing mode, and outputs the stored data as a second parallel signal in the reading mode. In the reading mode, the decoder 13 decodes the first control signal and the second parallel signal to generate and output a plurality of element control signals to a plurality of elements; and in the writing mode, the decoder holds the plurality of element control signals generated in the reading mode. <P>COPYRIGHT: (C)2007,JPO&INPIT |
