MASS STORAGE DEVICE, IN PARTICULAR OF THE USB TYPE, AND RELATED METHOD FOR TRANSFERRING DATA

摘要

A mass storage device is described which is of a type comprising one or more memory elements (29) and a logic module (30) adapted to interface said one or more memory elements (29) for exchanging data according to a data exchange protocol, in particular of the USB type, through a first port (21). According to the invention, said mass storage device (20; 80; 90) comprises a module (23) for detecting the presence of a power voltage (Vbus_SDT1) associated with a first connector of said first port (21), and said logic module (30) can set said storage device (20; 80, 90) to either a Host or a Function device configuration depending on the detection (PW_detect) carried out by said module (23) for detecting the presence of a power voltage (Vbus_SDT1), said device also comprising a second port (22) adapted to implement a direct data exchange with further storage devices (SDT2). The device additionally offers the possibility of communicating with radio or optical wireless ports exchanging data through a data bus, e.g. of the USB type.