| 摘要 |
PURPOSE:To reduce generation of noise, and also to improve the efficiency of maintenance, by inputting the information for deciding the direction of a flow of the information, in an information group arrayed in time series, and using a single piece of a connecting line of an interface system. CONSTITUTION:A signal aspect consists of a status ST, a command CO, a write data WD, a read data RD, a receiving-transmitting signal RT and a transmitting-receiving signal TR. The signal RT and same TR are information for indicating a direction in which information flows, and the signal RT indicates the an electronic computer 7 ends reception and subsequently switches it to transmission, and the signal TR indicates its reverse. An electronic communication apparatus 1 such as a magnetic disk device, etc. is connected with the electronic computer 7 by a single line. A decoder 10 controls a controlling circuit 6, a driver receiver 8 and a series-parallel converter 9 by the signal RT or same TR. In this way, noise is scarcely generated, and maintenance of the connecting line can be executed efficiently. |
