JPS63257989A - Rom cartridge for personal computer - Google Patents

Abstract

PURPOSE:To prevent losses of programs and data due to unprepared or careless mistakes so as to improve the effect of data processing by means of a personal computer, by installing a switch to the power supply circuit of a ROM cartridge and controlling the power supply to a ROM section by opening and closing the switch and, at the same time, chip select signals. CONSTITUTION:A power supply line 10 which is a power supplying means and a switch 2 which turns on and off the power source are installed to ROM cartridge can be executed when the switch 2 is turned on. As a result, a personal computer can continuously execute the currently executed program until the switch 2 installed to the cartridge 1 is turned on. Therefore, destruction of the program can be prevented and, at the same time, the personal computer can be caused to execute another program while the ROM cartridge 1 is inserted if the switch 2 is turned off even though the ROM cartridge 1 is inserted to the slot of the computer.

Description

DETAILED DESCRIPTION OF THE INVENTION FIELD OF INDUSTRIAL APPLICATION The present invention relates to a ROM cartridge for a personal computer, which is commonly available on the market and is used in a personal computer having a slot for general home use.

2. Description of the Related Art Conventionally, cartridges (hereinafter referred to as ROM cartridges) containing a built-in memory such as ROM or RAM have been commercially available for use in personal computers (hereinafter referred to as personal computers). A typical example of these cartridges is a ROM cartridge that is used in MSx personal computers and has a built-in game program, and is highly praised for its practicality.

Problems to be Solved by the Invention In the above-mentioned conventional ROM cartridge, the reset signal is activated as soon as the cartridge is inserted into the slot of a personal computer, and the ROM is activated regardless of whether or not the CPU of the personal computer is executing another program. Execution of the cartridge program is given priority.

Therefore, if a ROM cartridge is accidentally inserted into a slot while the personal computer is running another program that does not rely on a ROM cartridge, the other program will be destroyed.

In addition, as the general-purpose use of personal computers progresses, when running other programs that do not rely on ROM cartridges, for example, when running a program that you have created yourself using 5hsxa 2 words, it is necessary to The inserted ROM cartridge must be removed, which is extremely inconvenient.

The present invention is an RO for a computer that solves these problems.
The purpose is to provide M cartridges.

Means for Solving the Problems In order to achieve the above object, the present invention provides a ROM for personal computers.
The cartridge is provided with a power line serving as a power supply means and a switch for turning the power on and off, and by turning on the switch, the program in the ROM cartridge can be executed.

Effect By having the above configuration, the RO can be inserted into the slot in the PC.
Even if an M cartridge is inserted, the program in the ROM cartridge will not be executed immediately; the computer will continue to execute the program currently being executed until the switch provided on the ROM cartridge is turned on. In addition, even if a ROM cartridge is inserted into the slot of the computer, if the switch is turned off, it is possible to cause the computer to execute another program with the ROM cartridge still inserted. .

Example An embodiment of the present invention will be described below with reference to the accompanying drawings.

Figure 1 is MS! This is a schematic example of the internal connections of a ROM cartridge of the present invention used in a personal computer.

MS! Personal computers use cartridges with terminals consisting of 50 pins. Of these 50 terminals, the first, second, and third terminals are input terminals for the chip select signal that selects the 10M section 9 built into the ROM cartridge 1, and are connected between each terminal and the ROM section. are provided with switches 2a, 2b, and 2C, respectively. The 45th terminal is a terminal connected to the power supply supplied from the main body of the personal computer, and supplies power to the ROM section through the power supply line 1o. The power supply line 10 is provided with a switch 2 that can be opened and closed by external operation, and in conjunction with the opening and closing of this switch 2, the switches 2&, 2b, and 2c are opened and closed, and when the switch 2 is closed, the switches 2&, 2b, and 2c are also opened and closed. When closed, the ROM built in the 10M unit 9 is executed. In addition, switch 2.2! L・2b
- 2c constitutes a switch section.

FIG. 2 is an overview diagram showing an embodiment in which the ROM cartridge of the present invention is used in a personal computer. In the figure, 1 is a ROM cartridge, an operating part 2d of a switch 2 that opens and closes a power line 1o built into the ROM cartridge 1, and a LIED 3 that displays the opening and closing of the switch 2.
is provided on its surface. 4 is a slot provided in the personal computer body 5 into which the ROM cartridge 1 is inserted.

6 is a power switch provided on the main body of the personal computer, 7 is a CRT which is an input/output device, and a is a keyboard. In this configuration, the switch 2 of the ROM cartridge 1 is normally left open, and in this state the ROM cartridge 1 is inserted into the slot 4 of the computer body 6 which is currently in operation. In this state, switch 2 is open, so ROM cartridge 1
The programs and data built into the computer are not executed, and the currently running program continues to be executed, or it is possible for the user to run various programs created using the RASIC language or the like. Next, when the currently running program ends and you want to start ROM cartridge 1, you can close switch 2 while it is still inserted in slot 4, and the program and data in ROM cartridge 1 can be executed. Become. Also, when the ROM cartridge 1 is not inserted into the slot 4, the switch 2
If it is closed, it has the same function as a commercially available ROM cartridge, and can be used in the same way as before.

Effects of the Invention As described above, according to the present invention, a switch is provided in the power supply circuit of the ROM cartridge, and R is controlled by opening and closing the switch.
The power supply to the OM section is controlled, and the chip select signal is also controlled, so by opening the switch and inserting the ROM cartridge into the slot of the computer, the programs and data currently being executed within the pan controller will be displayed. This makes it possible to eliminate damage to the computer, prevent losses due to carelessness or carelessness, and further enhance the effectiveness of data processing by the personal computer. In addition, the troublesome operation and effort of inserting and removing the ROM cartridge from the slot each time can be eliminated by processing data using a program in the ROM cartridge, or by using a program other than the ROM cartridge. It has great practical value and effect in promoting its use.

[Brief explanation of the drawing]

FIG. 1 is a schematic plan view of a ROM cartridge for personal computers according to the present invention, and FIG. 2 is an external perspective view showing an embodiment in which the ROM cartridge for personal computers is used in a personal computer. 2...Switch, 5...PC body, 9...ROM section, 10...Power line. Name of agent: Patent attorney Toshio Nakao and 1 other person1-
,'? CM, 1° tri7. Figure 2

Claims (1)

[Claims] A ROM cartridge for a personal computer, comprising a ROM section that stores programs and data, a power line that is a power supply means for starting the programs and data in a personal computer, and a switch that opens and closes the power line.