Patent ID: 7925812
Filing Date: 2011-04-12
Classification: G06F

Abstract:
1. A card-type peripheral device having a plurality of external interfaces, the card-type peripheral device comprising: a connector configured to connect the card-type peripheral device to a connectable device connectable to the card-type peripheral device, the connector including a dedicated terminal in which an interface to be used is set; an electronic component configured to be accessed via the interface set by the dedicated terminal; a plurality of interface function units each configured to control an interface compliant with one of a plurality of specifications; a communication function unit configured to perform communication with the electronic component using one of the plurality of interface function units, the one interface function unit having a specification corresponding to a setting of the dedicated terminal; an analog circuit connected to the connector via a transmission line, the analog circuit including an enable terminal for determining whether the analog circuit is enabled or disabled according to the setting of the dedicated terminal; and a logic circuit configured to operate in synchronization with a clock signal to transmit and receive data to and from the communication function unit; wherein the interface function unit having the specification corresponding to the setting of the dedicated terminal is enabled, and at least one of the interface function units having a specification that does not correspond to the setting of the dedicated terminal is disabled wherein, in accordance with the setting of the dedicated terminal, at least one of the interface function units is configured such that the analog circuit is disabled and the supply of the clock signal to the logic circuit is stopped.