| 摘要 |
PURPOSE:To simplify the processing in a CPU and a communication control device, by transferring separately and independently a data which becomes an object of the processing by both devices, and control information for said data. CONSTITUTION:When a control information block (a) is generated and transfer preparations to a host machine are ready, first of all, a receiving data is transferred to a secondary storage device 3 through the second interface B, and subsequently, in order to transfer the control information block through the first interface A, an attention interruption is executed to a CPU12 and issue of a read command is urged. When the read command is issed, the control information block (a) is transferred, and the CPU12 executes the processing of a receiving data (b) on the secondary storage device 3. A communication control program on a communication control device receives the transmitting data (b) on the secondary storage device 3 through the second interface B by said control information (a), and transmits it to a terminal device T in accordance with transmission control procedures. |
