JPH06161671A - Auxiliary memory device - Google Patents

Abstract

PURPOSE:To provide an excellent auxiliary memory device capable of conducting operation control without a control instruction by CPU by solving the reduction of a processing speed at the time of an operation mode processing corresponding to the change of an AC power source connecting situation in an auxiliary memory device used in an information processor with a personal computer in a center. CONSTITUTION:A mode setting control part 21 is provided in the auxiliary memory device 15 so that the mode setting control part 21 can operation-control an operation control part 19. In order that the AC power source connecting situation from the AC power source connecting situation detection part 13 of a computer main body 11 is transmitted to the mode setting control part 21, the AC power source connecting situation detection part 13 and the mode setting control part 21 are connected through a mode control signal line 22. Thereby, the operation of the operation control part 19 in accordance with the AC power source connecting situation can be controlled without issuing the control instruction by CPU.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an auxiliary storage device used in an information processing device such as a personal computer.

[0002]

2. Description of the Related Art In recent years, an auxiliary storage device such as a hard disk drive, which is made intelligent by the introduction of the SCSI standard, has become mainstream so that the burden on the control of the computer main body is reduced.

A conventional auxiliary storage device will be described below with reference to the drawings. FIG. 2 is a configuration diagram showing a connection state between a conventional auxiliary storage device and a computer main body. Figure 2
, 1 is the computer main body, 2 is the CPU, 3 is the A
C power supply connection status detecting unit, 5 is an auxiliary storage device, 4 is a control bus for transmitting control commands from the CPU 2 of the computer main body 1 to the auxiliary storage device 5, 6 is a battery, 7 is an AC power supply,
Reference numeral 10 is a storage processing unit located in the auxiliary storage device 5, 9 is an operation control unit located in the auxiliary storage device 5, and 8 is an operation control by analyzing a control command issued from the CPU 2 to the auxiliary storage device 5. It is a control command processing unit that issues an operation instruction to the unit 9.

The operation of the conventional auxiliary storage device configured as described above will be described below. First, in a battery-powered state in which the computer main body 1 is supplied with power only from the battery 6, the auxiliary storage device 5 is stored for a certain period of time in order to reduce the power consumption of the auxiliary storage device 5 in order to minimize the consumption of the battery 6. When there is no access, the CPU 2 sends a control command to the control command processing unit 8 through the control bus 4 so as to turn off the power of the storage processing unit 10 and shift to the low power consumption mode. The control command processing unit 8 analyzes the control command sent thereto and sets the operation mode in the operation control unit 9.

Next, when the AC power supply 7 is connected, it is not necessary to suppress the power consumption of the auxiliary storage device 5, so that CP
When the U2 detects the connection of the AC power supply 7 by the AC power supply connection status detecting unit 3, the U2 transmits a control command to the control command processing unit 8 via the control bus 4. The control command processing unit 8 analyzes the control command from the CPU 2 and instructs the operation control unit 9 to change the operation mode.

[0006]

However, in the above-described conventional configuration, when the operation mode of the auxiliary storage device 5 is controlled in accordance with the change in the connection status of the AC power supply of the computer main body 1, the CPU 2 frequently connects the AC power supply connection status. Since it is necessary to check the AC power supply connection status via the detection unit 3 and issue a control command to the control command processing unit 8,
There is a problem that the processing speed of the original computer is significantly reduced.

SUMMARY OF THE INVENTION The present invention solves the above-mentioned conventional problems, and an object of the present invention is to provide an auxiliary storage device capable of performing operation control without issuing a control command by the CPU.

[0008]

In order to achieve this object, an auxiliary storage device of the present invention comprises a storage processing unit for performing storage processing on a recording medium, and an operation control unit for controlling the operation of the storage processing unit. And a mode setting control section for issuing an operation instruction to the operation control section in response to a control signal notified from an AC power supply connection status detection section that detects the connection status of the AC power supply of the information processing apparatus main body. is doing.

[0009]

With this configuration, the mode setting control unit receives a control signal for notifying the AC power supply connection state of the information processing apparatus main body and issues an operation instruction to the operation control unit, whereby the CPU controls the operation of the auxiliary storage device. It can be performed without issuing a control command.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An auxiliary storage device according to an embodiment of the present invention will be described below with reference to the drawings.

In FIG. 1, 11 is a computer main body,
Reference numeral 12 is a CPU, 13 is an AC power supply connection status detection unit, 15 is an auxiliary storage device, and 14 is the CPU 12 of the computer main body 1.
Control bus for transmitting control commands from the auxiliary storage device 15 to the auxiliary storage device 1,
6 is a battery, 17 is an AC power supply, 20 is a storage processing unit located in the auxiliary storage device 15, and 19 is the auxiliary storage device 15.
An operation control unit 18 located inside is a control command processing unit that analyzes a control command issued from the CPU 2 to the auxiliary storage device 5 and issues an operation command to the operation control unit 19. The difference from the conventional example is that a mode setting control unit 21 is provided in the auxiliary storage device 15, and a mode control signal line 22 that connects the AC power supply connection status detection unit 13 of the computer main body 11 to the mode setting control unit 21 is provided. .

The operation of the auxiliary storage device configured as described above will be described below. First, in a state where the AC power source 17 is not connected, the computer main body 11
Since the power is supplied only from the battery 16, the CPU 12 operates through the control bus 14 so as to turn off the power of the storage processing unit 20 when there is no access to the auxiliary storage device 15 for a certain period in order to suppress the power consumption. Control unit 1
Set to 9. When there is no access to the auxiliary storage device 15 for the set time, the operation control unit 19 turns off the power of the storage processing unit 20 and shifts the auxiliary storage device 15 to the low power consumption mode.

Next, when the AC power supply 17 is connected, it becomes unnecessary for the computer main body 11 to suppress power consumption,
It is not necessary to shift the auxiliary storage device 15 to the low power consumption mode. Therefore, the AC power supply connection status detection unit 13 notifies the mode setting control unit 21 of the auxiliary storage device 15 of the connection of the AC power supply 17 through the mode control signal line 22. A
The mode setting control unit 21 that has detected the connection of the C power supply 17 issues an instruction to the operation processing unit 19, and the operation control unit 19 switches the mode so as not to turn off the power of the storage processing unit 20.

This switching operation is performed by the computer main body 11
And the auxiliary storage device 15 without passing through the control bus 14 and the control command processing unit 18.

As described above, according to this embodiment, the AC power supply 17 is provided by providing the auxiliary storage device 15 with the mode setting control section 21 for instructing the operation control section 19 to operate without issuing a control command from the CPU. It is possible to automatically switch the low power consumption mode transition setting corresponding to the change in the connection status of the AC power supply of the computer main body 11 due to the attachment / detachment on the auxiliary storage device side without issuing a control command from the CPU. .

It goes without saying that in the embodiment, the auxiliary storage device 15 may be a hard disk device or a floppy disk device.

[0017]

As described above, according to the present invention, by providing the mode setting control processing section for directly receiving the signal from the AC power supply connection status detecting section, the CPU can perform the mode control according to the AC power supply connection status of the auxiliary storage device. It is possible to realize an excellent auxiliary storage device that can be executed without issuing a control command by the.

[Brief description of drawings]

FIG. 1 is a configuration diagram of an auxiliary storage device according to an embodiment of the present invention.

FIG. 2 is a configuration diagram of a conventional auxiliary storage device.

[Explanation of symbols]

 11 computer main body 13 AC power supply connection status detection unit 15 auxiliary storage device 16 battery 17 AC power supply 19 operation control unit 20 storage processing unit 21 mode setting control unit 22 mode control signal line

Claims (2)

[Claims] 1. A storage processing unit that performs storage processing on a recording medium, an operation control unit that controls the operation of the storage processing unit, and an AC power supply connection status detection that detects the connection status of the AC power supply of the information processing apparatus body. And a mode setting control section for issuing an operation instruction to the operation control section in response to a control signal notified from the auxiliary storage apparatus. 2. The operation control unit, when there is no access to the auxiliary storage device for a certain period of time, powers off the storage processing unit, shifts the auxiliary storage device to a low power consumption mode, and instructs the mode setting control unit to operate. The auxiliary storage device according to claim 1, wherein when there is such a change, the mode is switched to the AC power supply mode.