JPS59140530A - Electronic apparatus - Google Patents

Abstract

PURPOSE:To hold the contents of definition even at a power-off time and to initialize them freely, by providing a non-volatile memory where contents of user's definition information are held and returning them to the initial state by the operation of a specific character key. CONSTITUTION:Programs of instruction execution and initial definition information of user's definition information are stored in an ROM4, and an RAM5 is constituted with the non-volatile memory, and information defined by the user is stored in the RAM5. When an instruction which initializes user's definition information is indicated from a character key on a keyboard 3 by the processing of a CPU1, information is taken out from the ROM4 and is written as initial information of user's definition information in the RAM5. Since the RAM5 is the non-volatile memory, contents defined once by the user are held in the RAM5 at a power-off time. When initialization is indicated by the character key, information in the initial state is taken out from the ROM4, and only a user's definition key can be rewritten to the initial state.

Description

DETAILED DESCRIPTION OF THE INVENTION TECHNICAL FIELD The present invention relates to electronic equipment, and more particularly to an electronic equipment provided with means for setting and initializing user-defined information.

Technical field Many of the conventional electronic devices of this type have user-defined functions, for example, keys, and in most devices, some kind of meaning is initially defined at the design stage, and when the power is turned on, the meaning of the initial definition is lost. is configured to run.

However, once the user changes this initial definition, if the user wants to use the initial definition again, all they have to do is turn off the power and then turn it on again. The contents defined by will be deleted.

Therefore, it may be necessary to redefine the information from the beginning, and if there is a large number of user-defined information, this becomes an extremely troublesome task.

Purpose The present invention has been made to eliminate the above-mentioned drawbacks of the conventional technology.Once user-defined information is set, it is stored in non-volatile memory even after the power is turned off, and when the power is turned off the next time. The purpose is to provide an electronic device configured so that the user-defined information set by the user can be used as is even after the device is turned on, and the user can freely restore the initial settings.

EXAMPLES Hereinafter, the present invention will be explained in detail based on examples shown in the drawings.

FIG. 1 is a diagram for explaining one embodiment of the present invention.
, keyboard 3, fixed storage device (hereinafter referred to as ROM) 4
, and random access memory (hereinafter referred to as RAM) 5
It is connected to the.

The ROM 4 stores programs for executing instructions and initial definition information of user-defined information according to the present invention.

Further, the RAM 5 is configured as a nonvolatile memory that stores information defined by the user.

In this embodiment, user-defined initial information is stored in the ROM 4, and information is retrieved from the ROM 4 when a command to initialize the user-defined information is issued from a character key through CPU processing. , is written into the RAM 5 as user-defined initial information.

Further, since the RAM 5 is configured as a non-volatile memory, defined information is retained even when the power of the CPU I is turned off.

In other words, the content defined once by the user is when the power is turned on,
There is no need to redefine it each time it is turned off.

Furthermore, if the user instructs initialization using a character key at any time according to his/her preference, the initial state information can be retrieved from the ROM 4 and only the user-defined keys can be rewritten to the initial state.

FIG. 2 is a flowchart for explaining the operation of the ``-'' structure.

As shown in FIG.
or is stored in RAM5. After that, wait for the ON key at b,
When the ON key is pressed, the process moves to the following routine.

C checks whether the OFF key is pressed and returns to b when pressed. This OFF key does not turn off all the power, but does not turn off some of the power because it is a means of checking whether the ON key has been pressed.

The following d routine uses U and D for user definition.

If the K, S, E, and T keys are pressed consecutively, the process moves to g, and the information defined by the user is stored in the RAM 5.

In e, U, D, R are used to restore the initial definition.

It is checked whether or not the character keys E, S, E, and T have been pressed consecutively, and when they are input in that order, the process moves to h, which is the same process as a, that is, the initial definition information stored in ROM4 is transferred to UDKIRAM5. .

f receives various other commands, and i processes them. After these processes, the process returns to C and repeats the above series of processes. In this way, U, D, S, E, T
When the character keys of , R, E, S, E, and T are continuously pressed, the user-defined values are stored in the ROM 4. The initial definition information UDK can now be used. Furthermore, this defined information will be retained regardless of whether the power is turned on or off.

Although the above embodiment describes a user-defined key and relates to an input device, it is clear that the invention is not limited to this example, but can also be applied to, for example, a part of an output device, that is, a character generator that can be defined by the user. .

Effects As described above, the present invention provides user-defined information and a non-volatile memory for holding the contents of this information, and normally holds the displayed contents of the user-defined information, and when a specific character key is pressed. Since the configuration is such that it can be easily returned to the initial state, the contents of the user-defined information do not disappear when the power is turned off, and the user-defined information can be initialized freely.

[Brief Description of the Drawings] Figure 1 is a block circuit diagram illustrating an embodiment of the present invention;
FIG. 2 is a flowchart for explaining the operation. ■...Central processing unit 2...Display device 3...
Keyboard 4...ROM5...RAM

Claims (1)

[Claims] In an electronic device equipped with a central processing unit for processing information, means for storing information, and means for inputting and outputting information,
Equipped with a nonvolatile memory that retains the contents of user-defined information, once the user-defined information is set, the definition contents are retained even after the power is turned off, and the set definition contents are retained even after the power is turned on again. What is claimed is: 1. An electronic device characterized in that the electronic device is configured such that the set definition contents can be returned to the initial definition by operating a character key.