| 摘要 |
Disclosed herein is a data transfer device to which a master device that issues transfer requests and slave devices each having a function of responding to the transfer request may be connected. The device may include a transfer request counter that counts up or down each time a response signal is inputted thereto from any slave device, and counts down or up each time a data transfer completion signal is inputted thereto; a transfer destination selector that, based on a count value of the counter and information concerning a transfer-target slave device, determines and selects one of the slave devices as a destination of the transfer request, and connects the master device with the selected slave device; and a data transfer monitoring section that monitors completion of data transfer corresponding to the transfer request and, upon recognizing the completion, outputs the data transfer completion signal to the counter.
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