| 摘要 |
PURPOSE:To attain scheduling of optional priority by incorporating a schedule table checking a service request from each terminal station into a memory in a data bus controller. CONSTITUTION:The data bus controller 1 applies traffic control of a bus line 3 connected to plural terminal stations ST2. The schedule table 7 written in the memory 4 of the controller 1 for the terminal ST number corresponding to the check order of service request via an input/output means 5 is provided. A processor 6 reads sequentially from the beginning to the end of the content of the table 7, checks the service request from the terminal equipment ST having a number written as the content, and when the request exists, the use permission of a bus line 3 is given to the terminal equipment ST. The service request is outputted at the same time and when the using frequency of the terminal ST No.1 is high, the priority is given to the No.1ST and the use permission of the bus line 3 is given in the order, e.g., 1, 2, 1, 3, 1, 4.... |
