| 摘要 |
PROBLEM TO BE SOLVED: To make it possible to perform bus arbitration depending on desired priority order even if a bus master of low priority issues a bus transfer request prior to a bus master of high priority. SOLUTION: A bus arbitration system includes a plurality of bus masters, a plurality of memory controllers, and a bus arbiter for arbitrating access conflict when accessing the memory controller via a system bus, notifies the bus arbiter of a queue state storing bus transfer requests of the plurality of bus masters, compares the notified queue state with a preset condition for determination, and then decides timing for arbitrating the access conflict based on the determination result. COPYRIGHT: (C)2010,JPO&INPIT
|
