Interrupt controller, interrupt signal pretreating circuit and its interrupt control method

A technology for preprocessing circuits and interrupting signals, which is applied in data processing power supply, electrical digital data processing, instruments, etc., and can solve the problems of power consumption and inability to monitor

Active Publication Date: 2006-11-08
VIA TECH CHINA
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] However, when the computer system works in the S0 state, interrupts do not occur frequently. Therefore, the interrupt controller must be in the working state of monitoring the occurrence of interrupts. At this time, the strobe clock signal of the interrupt controller needs to exist at the same time so that it can be detected in time. to the interrupt and process it, otherwise it will not be possible to monitor the occurrence of the interrupt
Although this approach can achieve the effect of monitoring at any time, it will also consume excess power.

Method used

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  • Interrupt controller, interrupt signal pretreating circuit and its interrupt control method
  • Interrupt controller, interrupt signal pretreating circuit and its interrupt control method
  • Interrupt controller, interrupt signal pretreating circuit and its interrupt control method

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Embodiment Construction

[0017] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

[0018] figure 1 is a schematic diagram of an interrupt controller for a computer system according to one embodiment of the present invention.

[0019] A conventional interrupt controller in a computer system is generally set on the south bridge chip of the chipset or on a single chip integrating the north and south bridges. Therefore, the interrupt signal preprocessing circuit of the present invention can be applied not only to the traditional south bridge chip, but also to the traditional north bridge integrated chip.

[0020] like figure 1 As shown, the interrupt controller 1 according to the present invention includes a CLK module 410, an Advanced Programmable Interrupt Controller APIC (Advanced Programmable Interrupt Controller) module 420 (generally, the APIC module 420 has 24 interrupt entries), and respectively in the APIC module 420 Interrupt signal...

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Abstract

This invention relates to an interrupt controller in conformity with the ACPI power management stanadard computer system and an interrupt signal pre-process circuit and its interrupt control method used in said interrupt controller, which can save power in ordinary work of a computer system, the control method includes: when interrupt input signals exist in a judgement system, the gating clock signal in the interrupt control process can deal with the signals properly and introduce the processed signals to an advanced programmable interrupt controller for proper process, when the process is finished, the grating clock signal is pulled to a low level.

Description

technical field [0001] The present invention generally relates to an interrupt control mechanism in a computer system, and more particularly, to an interrupt controller in a computer system conforming to the Advanced Configuration and Power Interface (ACPI) power management standard, and an interrupt signal for the interrupt controller The preprocessing circuit and its interrupt control method can save power consumption when the computer system conforming to the advanced configuration and power interface power management standard works normally. Background technique [0002] Computer system is one of the most important hardware infrastructures in modern information society. In addition to the pursuit of performance, modern computer systems also need to pay attention to the reduction of energy consumption, especially for notebook computers. Reducing energy consumption can prolong the battery life after each charge. Therefore, modern computer manufacturers also regard reducin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F13/24G06F1/32
CPCY02D10/00
Inventor 尹伟
Owner VIA TECH CHINA
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