| 摘要 |
PROBLEM TO BE SOLVED: To provide a testing means for simultaneously completing an USB host controller and an USB device controller with only a device concerned. SOLUTION: The USB host controller and USB device controller of the device are mutually connected. In testing the USB device controller, the USB host controller and a high-order application thereof function as a test tool for the USB device controller. In testing the USB host controller, the USB device controller and a high-order application thereof function as a test tool for the USB host controller. COPYRIGHT: (C)2005,JPO&NCIPI
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