| 摘要 |
PURPOSE:To improve RAS by providing a bus occupation control circuit which has a counter for measuring a standby time in each module connected to a common bus, and comparing counted values with one another and controlling bus occupation. CONSTITUTION:Plural modules 1-10-1-n connected to the common bus 2 each has a counter which counts the standby time after the module sends a bus use request signal, and its counted value is compared through an arbitration control line 4. Each module uses the common bus 2 when the counted value of its counter is maximum. |
