| 摘要 |
PURPOSE:To improve remarkably the data exchange speed by adding a specific code to a transmission data outputted to a data but and allowing a control processor circuit to only command transmission data fetched to a transmission circuit without fetching transmission data. CONSTITUTION:The control processor 3 receiving the connection request calls an opposite station, and after a reception circuit No.21 is registered on a comparator circuit 73 in a transmission circuit 7n, the end of connection is informed to a call station. The transmission data is given from an input data line 11 at the same way as a connection request signal fetched to the processor 3, and a specific number (No.) to the reception circuit 21 receiving the transmission data, that is, 21, is given from the reception circuit 21. The transmission circuit 7n intercepts the data on a data bus 6 transmitted from the reception circuit by an input instruction of the control processor 3, the said No added to the data and the No of the reception circuit registered by a comparator circuit 73 are compared and only the coincident data is given to a gate circuit 74. |
