| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a communication system capable of making a signal line for transmitting a slave select signal common without reducing the number of transmittable bits of data.SOLUTION: A microcomputer 10 outputs slave select data corresponding to an IC which should be selected as a communication object by a slave select signal transmitted via a slave select signal line 23 made common to ICs 11-13. The slave select data is binary data which changes in different patterns from each other while a prescribed number of clock signals Clock are output. The slave select data allows a communication object IC to be reliably selected.</p> |
