Data transfer device, semiconductor integrated circuit, and processing status notification method

A semiconductor integrated circuit managed by a processor, comprising:

• a plurality of transfer circuits each for controlling transfer of data;
• a buffer for performing sequential input/output of data transferred under control of the plurality of transfer circuits;
• and
• processing status notification unit for notifying the data transfer processing status regarding all of the plurality of transfer circuits to the processor for managing the plurality of transfer circuits simultaneously, in the event that at least one of the plurality of transfer circuits requests execution of data transfer processing via the buffer.

A processing status notification method for a data transfer device including a plurality of transfer circuits each for controlling transfer of data, said method comprising:

• an accepting process for accepting a transfer request from at least one of the plurality of transfer circuits;
• a collecting process for collecting status information indicating the status of data transfer relating to all of the plurality of transfer circuits, in the event that a transfer request has been accepted in the accepting process;
• a generating process for generating notification data including
• information of a transfer-capable circuit regarding which the a transfer request has been received in the accepting step, and
• status information collected by the status information collecting unit;
• and
• a transmission process for transmitting notification data generated in the generating process to a processor managing the plurality of transfer circuits.