| 摘要 |
The present invention aims to provide a USB host controller capable of reducing time for a data transfer between storage devices. A USB host controller according to the present invention includes a buffer memory for USB pipe having a first buffer memory region and a second buffer memory region, and a buffer memory controller configured to control a data transfer between the buffer memory for USB pipe and each of first and second devices. The buffer memory controller stores data from the first device in the first buffer memory region, swaps address information corresponding to the first buffer memory region and address information corresponding to the second buffer memory region, and transfers data stored in the first buffer memory region to the second device, on the basis of the address information corresponding to the first buffer memory region after the swapping.
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