公开(公告)号：EP2083344A1

公开(公告)日：2009-07-29

申请号：EP09004573.3

申请日：2004-07-14

Applicant: Renesas Technology Corp.

Inventor： Nishizawa, Hirotaka ,  Higuchi, Akira ,  Osawa, Kenji ,  Wada, Tamaki ,  Sugiyama, Michiaki ,  Osako, Junichiro

IPC: G06F1/00 ,  G06K19/077

CPC classification number: G06K19/077 ,  G06K19/07732 ,  H01L23/5388 ,  H01L24/48 ,  H01L24/49 ,  H01L24/73 ,  H01L25/0652 ,  H01L2224/05554 ,  H01L2224/32145 ,  H01L2224/32225 ,  H01L2224/48091 ,  H01L2224/48145 ,  H01L2224/48227 ,  H01L2224/49171 ,  H01L2224/4943 ,  H01L2224/73265 ,  H01L2225/06562 ,  H01L2924/00014 ,  H01L2924/01046 ,  H01L2924/01055 ,  H01L2924/01057 ,  H01L2924/01078 ,  H01L2924/01079 ,  H01L2924/12041 ,  H01L2924/13091 ,  H01L2924/14 ,  H01L2924/181 ,  H01L2924/19041 ,  H01L2924/3011 ,  H01L2924/00012 ,  H01L2924/00 ,  H01L2224/45099 ,  H01L2224/45015 ,  H01L2924/207

Abstract: The present invention provides a memory card equipped with an interface controller connected to external connecting terminals, a memory connected to the interface controller, and a security controller connected to the interface controller. A second external connecting terminal capable of supplying an operating power supply to the security controller is provided aside from a first external connecting terminal which supplies an operating power supply to the interface controller and the memory. An interface unit of the interface controller connected to the security controller receives the operating power supply from the second external connecting terminal and thereby enables a stop of the supply of the operating power supply from the first external connecting terminal. Even if the supply of the operating power supply to the interface controller is cut off, the output of the interface unit is not brought to an indefinite state.

Abstract translation: 本发明提供一种配备有连接到外部连接端子的接口控制器，连接到接口控制器的存储器和连接到接口控制器的安全控制器的存储卡。 除了向接口控制器和存储器提供工作电源的第一外部连接端子之外，还设置有能够向安全控制器提供工作电源的第二外部连接端子。 连接到安全控制器的接口控制器的接口单元接收来自第二外部连接端子的操作电力供应，从而使得能够停止从第一外部连接端子供应操作电力供应。 即使切断对接口控制器的工作电源的供给，接口单元的输出也不会处于不确定状态。