| 摘要 |
<p>PURPOSE:To improve the processing performance of a transmission side transmission equipment and to simplify an interface part by executing the flow control only with the internal processing of a reception side transmission equipment without informing the transmission side transmission equipment of the possibility and impossibility condition of the reception side transmission equipment. CONSTITUTION:When a transmission equipment 11 receives the data from a transmission equipment 12, the transmission equipment 12 synchronizes to a clock ST sent from the transmission equipment 11 by a timing signal line 13 and by a reception data line 14, data RD are transmitted at a prescribed information quantity unit, for example, at a bit unit. When a buffer busy occurs while the transmission equipment 11 receives the data RD, the sending of the clock ST to a timing signal line 13 for transmission data of the transmission equipment 12 is stopped. Thus, the transmission equipment 12, while the clock ST for transmitting is stopped, stops the data transmission to the transmission equipment 11. Since when the buffer busy of the transmission equipment 11 is released, the transmission equipment 11 starts to send the clock ST to the timing signal line 13 again, the transmission equipment 12 restarts the data transmission to the transmission equipment 11. Consequently, only with the internal processing of the transmission equipment 11, a flow control is executed.</p> |
