BUS CONTROLLER, ARBITRATION DEVICE, METHOD AND PROGRAM THEREOF

摘要

PROBLEM TO BE SOLVED: To provide a bus controller by which a band of data transfer is assured by simple setting. SOLUTION: A first arbitration part 11 acquires band information indicating that data transfer of a data amount D is requested by every time S1 between a first device 91 and a second device 92. It is set that a right of use of a first bus is given to the first device 91 for time appropriate to transfer of the data amount D by every time S1 and a second arbitration part 12 is notified of the band information. The second arbitration part 12 sets that a right of use of a second bus is given to a bridge part 21 for the time appropriate to transfer of the data amount D by every time S2 equal to or shorter than the time S1 based on the notified band information. Then, the first arbitration part 11 and the second arbitration part 12 arbitrate the use rights of the first bus and the second bus according to each setting. COPYRIGHT: (C)2006,JPO&NCIPI