INFORMATION PROCESSING DEVICE, ACCESS CONTROL METHOD FOR SAME AND INTEGRATED CIRCUIT

摘要

In the present invention, a processor (10) performs an attribute switch permission request for an attribute switch control unit (41) when switching internal processing. The attribute switch control unit (41) that has received the attribute switch permission request causes peripheral circuitry (20) to output an access command, which is related to processing received from the processor (10), to an access control unit (44) so that upon completion of the output of the access command, the attribute switch is permitted for the processor (10). The processor (10) is characterized in that, if permission for the attribute switch is acquired from the attribute switch control unit (41), internal processing is switched, and attribute information in an attribute storage unit (42) is updated.