| 摘要 |
PURPOSE:To raise the efficiency of a data buffer by constituting so that data to plural output devices are transmitted through the same data line in the form interposed between commands showing to which output device the data is sent. CONSTITUTION:Data D1-Dn to output devices 10a-10n are received by a receiving means 12 through the same data line 11 in the form interposed between commands A1-N1, A2-N2. A given command is decoded by a decoding means 13, and to which output device the data is sent is informed to a write means 14 and is stored in a buffer memory 15. At the same time, from a result of decoding of the given command, information showing to which output device its data is sent is stored in a data discriminating memory 16. A data read means reads out successively the data of the memory 15 in accordance with storage information of the memory 16, and sends out the data to output devices 10a-10n. |
