| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a semiconductor device excluding, before arbitration, an access request to be restrained upon an exclusive process, and of quickly determining an access request that should be accepted by arbitration. Ž<P>SOLUTION: Address information or the like that is the subject of exclusive access is held in an exclusive information buffer (81) and address information that initiators (60, 61, 62) output is compared with the address information held. In this way, a pinpoint exclusive process targeting the address that is the subject of the exclusive address is achieved. Prior to an arbitration process, exclusion of an access request upon an exclusive process is carried out. Thus, the access request that should be restrained upon the exclusive process is prevented from undergoing an arbitration process, and the time from when the initiator makes an access request until the access request is accepted is reduced. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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