PERIPHERAL DEVICE AND CONTROL METHOD THEREOF

摘要

There is provided a peripheral device capable of being connected to a host device through a connection cable including a power line. This peripheral device comprises: a first power terminal capable of being connected to the power line of the connection cable; a power circuit connected to a second power terminal different from the first power terminal and for supplying power to an internal circuit; a start signal generating circuit for generating a start signal causing the power circuit to start supplying power to the internal circuit, when power has been supplied to the first power terminal through the connection cable; and a feedback circuit for allowing the start signal to remain activated when power has been supplied to the internal circuit from the power circuit.