JPH0693252B2 - Portable electronic device initialization device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a portable electronic device called an IC card, and specific information corresponding to a program in the portable electronic device. And an initialization device for a portable electronic device that stores a.

(Prior Art) Recently, as a new portable data storage medium, an IC having a nonvolatile data memory and a control element such as a CPU
IC cards with built-in (integrated circuit) chips have been developed. In this type of IC card, a built-in control element accesses a built-in data memory and inputs / outputs necessary data in response to a request from an external device.

By the way, such an IC card is usually operated in a state in which an instruction code and information indicating a start address of a program corresponding to the instruction code are stored in a data memory in a table format. That is, when a certain command data is input, the control element recognizes the start address associated with the command code included in this command data by referring to the table, and based on this start address, the corresponding program is recognized. To execute.

Now, this table information (specific information corresponding to the program) is usually stored by an electronic device called an initialization device when the IC card is manufactured. This table information is
There is a one-to-one correspondence with the programs in the IC card. For example, as the types of programs in IC cards diversify depending on the model, the same amount of table information as the number of types of programs is required. Therefore, at the time of manufacturing the IC card, it is necessary to recognize the type of the program in the IC card to be initialized by some method and surely store the appropriate table information.

In the conventional system, the program in the IC card that is currently being initialized is recognized in manufacturing control (for example, a control ledger), and the corresponding table information is artificially selected, and the initialization device uses the data memory in the IC card. I remembered. However, this method is not suitable as an IC card initialization method because there are no points to be guaranteed regarding the manufacturing control method and the legitimacy of artificial judgment.

In order to improve this, the IC card itself has a function to output information that encodes the format (type) of the built-in program, and the initialization device reads this information, and the CRT display connected to the initialization device A method of recognizing the program in the IC card that should be initialized at present by displaying it on, for example, is conceivable. However, this method is also not suitable as an IC card initialization method, because the corresponding table information is selectively selected by referring to the display, like the above method.

(Problems to be Solved by the Invention) As described above, the present invention requires many artificial steps when storing specific information corresponding to a program in a portable electronic device, and therefore appropriate specific information is required. It was made to solve the problem that it is not possible to reliably store the specific information, and when storing the specific information corresponding to the program in the portable electronic device, the artificial process is minimized and the appropriate specific information is stored. It is an object of the present invention to provide an initialization device for a portable electronic device capable of surely storing data.

[Structure of the Invention] (Means for Solving Problems) The present invention provides a data memory unit, a control unit for reading and writing data from the data memory unit, and an external input / output. Portable electronic device comprising means for executing the program, a program memory section for storing a program for the control section to control, and means for outputting program format information indicating the format of the program in response to an external request. An initialization device for a portable electronic device that stores specific information corresponding to the program format information in the data memory unit, and storage means for storing a plurality of the specific information, and the portable electronic device. Selecting means for selecting corresponding specific information from the storage means according to the program format information output from the storing means, and the specific information selected by the selecting means And and means for storing in the data memory of the portable electronic device.

(Operation) A plurality of pieces of specific information corresponding to the program are stored in the storage means, and the portable electronic device is requested to output the program format information indicating the format of the program. The specific information is selected, and the selected specific information is stored in the data memory unit of the portable electronic device. With this, it is possible to minimize the artificial process and surely store the appropriate specific information. .

(Example) Hereinafter, one example of the present invention will be described with reference to the drawings.

FIG. 7 shows an example of the configuration of an IC card as a portable electronic device according to the present invention, which has a control element (for example, CPU) 1 as a control unit and a non-volatile nonvolatile memory capable of erasing stored contents as a data memory unit. A data memory 2, a program memory 3 as a program memory unit, and a card reader
The IC card is composed of a contact part 4 for making electrical contact with the writer. Of these, the part within the broken line (control element 1, data memory 2, program memory 3) is composed of one IC chip. It is embedded in the body. The program memory 3 is composed of, for example, a mask ROM, and as shown in FIG. 4, shows the control program of the control element 15 provided with the function program for realizing each basic function, and the format (type) of the program. It stores program format information and the like. The data memory 2 is used for storing various data and is composed of, for example, an EEPROM.

The specific area of the data memory 2 is a table area, and table information as specific information corresponding to the program as shown in FIG. 5 is stored in this table area. The table information is composed of information indicating the instruction code and the start address of the program corresponding to the instruction code. For example, the start address of the program realizing the instruction code "A" corresponds to "aaa". This table information is stored by the initialization device described later.

FIG. 2 shows a configuration example of an IC card initialization device according to the present invention. A card which accepts the IC card 11 configured as described above and reads and writes data from the IC card 11. Reader / writer 12, keyboard 13, CR
A control unit 1 including a T display device 14, a floppy disk device 15, a printer 16 and a CPU for controlling these devices.
Composed of 7. As shown in FIG. 3, the floppy disk device 15 stores a plurality of table information (specific information) respectively corresponding to a plurality of programs. As shown in FIG. 5, the table information is composed of the instruction code and the information indicating the start address of the program corresponding to the instruction code.

Next, the operation of such a configuration will be described with reference to the flowchart shown in FIG. First, the IC card 11 in which the table information shown in FIG. 5 is not stored is set in the card reader / writer 12. Then, for example, by inputting a program format output request from the keyboard 13, the control unit 17 outputs the output command data of the program format information to the IC card 11. IC card that received this
In 11, the control element 1 reads the program format information stored in the program memory 3 and outputs it to the control unit 17. Receiving this, the control unit 17 recognizes the format of the program stored in the program memory 3 of the IC card 11, selects the corresponding table information from the floppy disk device 15, and selects the selected table information from the IC card 11 Output to. In the IC card 11 that received this, the control element 1
Stores the table information sent from the control unit 17 in the data memory 2.

For example, the contents of the program memory 3 of the IC card 11 is the fourth
If it is as shown in FIG. 5A, the table information corresponding to this is as shown in FIG. This table information is stored in the floppy disk device 15 as table information 1, for example. Therefore, in this case, the table information 1 corresponding to the program format information output from the IC card 11 is selected, and the data memory 2 of the IC card 11 is selected.
Remember. As a result, the table information as shown in FIG. 5A is stored in the data memory 2.
If the contents of the program memory 3 of the IC card 11 are as shown in FIG. 4 (b), the table information corresponding to this is as shown in FIG. 5 (b). This table information is stored in the floppy disk device 15 as table information 2, for example. So in this case,
The corresponding table information 2 is selected according to the program format information output from the IC card 11 and stored in the data memory 2 of the IC card 11. As a result, the data memory 2 has a fifth
The table information as shown in FIG. 6B will be stored.

Next, the operation of the IC card 11 will be briefly described. The IC card 11 operates according to the flowchart shown in FIG. That is, in the steady state, it is in a state of waiting for command data from the outside. When command data is input from the outside, the control element 1 finds a command code included in this command data by referring to table information in the data memory 2. If not found, the control element 1 outputs response data indicating an instruction code error and returns to the instruction data waiting state again. If found, the control element 1 recognizes the start address associated with the instruction code by referring to the table information in the data memory 2, and executes the corresponding function program based on this start address. And after executing the function program,
The result is output as response data, and the operation returns to the instruction data wait state.

The IC card initialization device described above stores a plurality of table information corresponding to programs in the floppy disk device, and requests the IC card to output the program format information indicating the format of the program. The corresponding table information is selected according to the program format information and the selected table information is stored in the data memory of the IC card. As a result, it is possible to reliably store appropriate table information while minimizing the number of artificial steps unlike the conventional case.

Although the table information corresponding to the program is stored in the floppy disk device in the above embodiment, it may be stored in another storage means (for example, magnetic tape device, semiconductor memory, etc.).

[Effects of the Invention] As described in detail above, according to the present invention, when storing specific information corresponding to a program in a portable electronic device, an artificial process is minimized to ensure appropriate specific information. An initialization device for a portable electronic device that can be stored can be provided.

[Brief description of drawings]

FIG. 1 is a diagram for explaining an embodiment of the present invention. FIG. 1 is a flowchart for explaining the operation of the initialization device, FIG. 2 is a block diagram showing the configuration of the initialization device, and FIG. 3 is a floppy disk. A diagram showing table information stored in the device,
FIG. 4 is a diagram showing the configuration of the program memory, FIG. 5 is a diagram showing table information stored in the data memory, FIG. 6 is a flowchart explaining the operation of the IC card, and FIG.
It is a block diagram showing a configuration of an IC card. 1 ... Control element (control section), 2 ... Data memory (data memory section), 3 ... Program memory (program memory section), 11 ... IC card (portable electronic device), 12 ...
… Card reader / writer, 13… Keyboard, 15… Floppy disk device, 17… Control section.

Claims (3)

[Claims] 1. A data memory unit, a control unit for reading and writing data from and to the data memory unit, means for inputting and outputting from the outside, and the control unit for controlling. Corresponding to the program format information with respect to the data memory section of the portable electronic device, which comprises a program memory section for storing the program and a means for outputting the program format information indicating the format of the program in response to an external request. An initialization device for a portable electronic device that stores specific information, wherein the storage device stores a plurality of the specific information, and the specific information corresponding to the program format information output from the portable electronic device The selection means selected from the storage means and the specific information selected by the selection means are recorded in the data memory unit of the portable electronic device. Initializing apparatus of a portable electronic apparatus characterized by comprising means, the for. 2. The initialization device for a portable electronic device according to claim 1, wherein the specific information comprises an instruction code and information indicating a start address of a program corresponding to the instruction code. 3. The initialization device for the portable electronic device according to claim 1, wherein the portable electronic device is an IC card.