| 摘要 |
PURPOSE:To obtain a compact command analysis table by setting said table in every transition state of a CPU and registering the decision data only on a command code with which the reception is expected in the transition state. CONSTITUTION:The reception data is supplied to a CPU13 via a reception port 11 and a receiver 12 and then transferred to a data analysis processor 24. The processor 24 selects one of command analysis tables 25a-25z in response to the transition state indicated by a state controller included in the CPU13. Each of these analysis tables contains registration of only the decision data on the command code that can be obtained in each transition state. The tables 25a- 25z are searched and decided by a command code of the reception data. When the processing is through with decision, the transition state of the CPU13 is advanced by a step to wait for the next reception data. In such a way, a compact structure is possible for the command analysis table with reduction of the processing time and increment of the analyzing speed. |
