| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a host device that establishes logical connection with a device at error generation without requiring physical reconnection with the device. <P>SOLUTION: When a host device 1 detects physical connection with a USB device 3 (S351), the host device 1 sends a reset signal (S352) and then starts the execution of a sequence of configuration (S353). If error generation is detected (S354) during the sequence of configuration (S353), electric power supply to a feeder line Vbus of a USB 2 is stopped (S355) and then restarted (S356) to initialize a connection control function unit of the USB device 3, the reset signal is sent again (S357), and the sequence of configuration (S358) is executed. <P>COPYRIGHT: (C)2012,JPO&INPIT |
