Title:
【発明の名称】ICカード
Document Type and Number:
Japanese Patent JP2682700
Kind Code:
B2
Abstract:
An IC card including application programs and a test program for a product test wherein in order to protect a predetermined region on a memory map, during an execution of the application programs, including a portion in which a pass code for providing security regarding accessing the test program is stored against an assignment, an address restriction circuit disposed on an address bus acting to restrict the value of predetermined digit of the address to thus restrict the regions capable of being accessed.
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Inventors:
Fujioka Sozo
Application Number:
JP11424689A
Publication Date:
November 26, 1997
Filing Date:
May 09, 1989
Export Citation:
Assignee:
Mitsubishi Electric Corporation
International Classes:
B42D15/10; G06F11/22; G06F12/14; G06F21/60; G06F21/62; G06F21/77; G06F21/79; G06K19/073; G07F7/10; (IPC1-7): B42D15/10; G06F11/22; G06F12/14; G06K19/073
Attorney, Agent or Firm:
Mitsuteru Soga (4 outside)