| 摘要 |
PROBLEM TO BE SOLVED: To provide common terminals to which serial data and parallel data are both input. SOLUTION: A data control circuit includes a first input terminal to which first bit data of first multi-bit parallel data including first to third bit data and the serial data are input, a second input terminal to which second bit data and a clock of prescribed frequency are input, a third input terminal to which third bit data are input, a decision circuit which decides whether the third bit data are input to the third input terminal, a plurality of output terminals corresponding to the plurality of bits, and an output circuit which outputs the first parallel data from the plurality of output terminals on the basis of a decision result of the decision circuit indicating that the third bit data are input, and converts the serial data input according to the clock into second multi-bit parallel data and then outputs the second parallel data from the plurality of output terminals on the basis of a decision result of the decision circuit indicating that the third bit data are not input. COPYRIGHT: (C)2009,JPO&INPIT |
