| 摘要 |
<p>PURPOSE:To reduce the number of parts comprising a two-way data comnunication system by constituting such that one elastic storage circuit can execute two-way data exchange. CONSTITUTION:When data is exchanged in the 1st direction, a switching signal EN1/-EN2 controls logic circuit groups 13 and 14 to connect an input terminal 8 to a data write connection point A for the elastic storage part 1. Simultaneously an output terminal 9 is connected to a data read connection point B from the elastic storage part 1. When data is exchanged in the 2nd direction, the switching signal EN1/EN2 controls the logic circuit groups 13 and 14 to connect an input terminal 10 to the data write connection point A for the elastic storage part 1. Simultaneously an output terminal 11 is connected to the data read connection point B from the elastic storage part 1. Thus one elastic storage part is used in terms of time division, thereby exchanging data in two directions.</p> |
