JPS63147762U

JPS63147762U -

Info

Publication number: JPS63147762U
Application number: JP3907287U
Authority: JP
Priority date: 1987-03-17
Filing date: 1987-03-17
Publication date: 1988-09-29

Description

[Brief explanation of the drawing]

第１図〜第３図は、本考案の１実施例によるＩ
Ｃカードを示すもので、第１図は機能ブロツク図
、第２図ａおよびｂはカード側およびリーダ・ラ
イタ側のシステム構成をそれぞれ示すブロツク図
。第３図は、リーダ・ライタ内のマイクロコンピ
ユータ用プログラムの要部フローチヤート図であ
る。１……カード、２……ＥＥＰ―ＲＯＭメモリア
レイ、３……コントロール・ロジツク、１０……
リーダ・ライタ、１ａ，１０ａ……送・受信用シ
リアル通信端子。 FIGS. 1 to 3 show an I according to an embodiment of the present invention.
1 is a functional block diagram, and FIGS. 2a and 2b are block diagrams showing the system configurations of the card side and the reader/writer side, respectively. FIG. 3 is a flowchart of the main part of the microcomputer program in the reader/writer. 1... Card, 2... EEP-ROM memory array, 3... Control logic, 10...
Reader/writer, 1a, 10a...Serial communication terminal for sending/receiving.

Claims

[Scope of utility model registration request]

In an information processing device including a card body comprising a built-in nonvolatile memory connected to an external connection terminal without going through a microcomputer, and a card access tool for accessing the memory such as reading and writing. , the memory has a section size storage area for storing a data section size in addition to a data memory area for storing information data, and the card access tool is configured to store a data section size in addition to a data memory area for storing information data. a section size writing means for writing a section size in the section size storage area according to section size specification data; a section size reading means for reading the contents of the section size storage area; a determining means for determining the validity of the read result; an access prohibiting means for prohibiting access to the data memory area when the determining means determines that the read result is not valid; physical address calculation means for calculating a physical address of the memory corresponding to the section number according to the continuation result of the section size and external section number designation data when determined;
An information processing apparatus comprising: access control means for accessing the memory based on a calculation result by the calculation means.