| 摘要 |
The synchronous and the asynchronous processing unit (100,200) are controlled by exclusive microprocessors and a common memory unit is occupied by the units (100,200) to expand the system processing capacity and to increase the communication speed. The method comprises steps: (A) Analyzing an input data from an asynchronous subscriber, checking the ready state of data communication between asynchronous terminals according to the X-28 protocol and sending the control packet and data to a common memory; (B) processing the X.25 control and data packet to transmit a control reply signal and packet data and processing X.29 and X.3 protocol; (C) constructing a packet according to the instruction data and sending to a common memory; and (D) processing input timer data according to X.25, X.3, X.28 protocol. When timer input data is receive.
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