| 摘要 |
PROBLEM TO BE SOLVED: To abolish a processor bus PBS and to reduce the corresponding number of terminals by loading control from a microprocessor on a cell highway through the use of a cell on the cell highway. SOLUTION: The microprocessor 10, a processor bus/control cell highway(HW) conversion part 11 connected to the processor bus PBS are provided. Then, a control cell insertion part 12 and a control cell extraction part 13 respectively provided on the input/output sides of LSI-1 to (n) are provided. Control information is outputted from the microprocessor 10 and it is transmitted to the processor bus/control cell HW conversion part 11 by the processor bus PBS. Here, control information from the microprocessor 10, which is in a bus system, is converted into a cell system and it becomes a control cell. The control cell is transmitted to the control cell insertion part 12 by control cell HW 14. The control cell is inserted into the idle time part of a regular cell in the control cell insertion part 12. |
