Data processing device accessing a memory in response to a request made by an external bus master
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A data processing device exchanges data between a memory and an external bus master. The memory is connected to the data processing device via a first bus so as to store data. The external bus master is connected to the data processing device via a second bus so as to process data. The data processing device comprises a bus-transmission control unit accessing the memory via the first bus in response to a request to access the memory made by the external bus master via the second bus.