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System command transmission method for computer system

A technology of a computer system and a transmission method, which is applied to the transmission field of system instructions in a computer system, can solve the problem of not providing a mechanism for notifying its power mode, etc.

Active Publication Date: 2008-06-25
辉达维京股份有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if there are also peripherals coupled to the North Bridge chip through the PCI Express bus, such as graphics cards, high-speed network cards, etc., there is no mechanism for notifying them of their power modes in the prior art.

Method used

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  • System command transmission method for computer system
  • System command transmission method for computer system
  • System command transmission method for computer system

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Embodiment Construction

[0040] Compared with the existing peripheral devices using the PCI bus, which do not need to respond to the power management information of the central processing unit, that is, enter the specific power mode architecture of the bus, such as power saving mode, the peripheral devices using the PCIExpress bus need to respond to this power management signal; Under this architecture, only the PCI Express peripheral coupled to the South Bridge chip (South Bridge) has this response signal mechanism, but there is no standard how the peripheral coupled to the North Bridge chip (North Bridge) responds to this signal, so this The invention means that after the peripheral device coupled to the south bridge chip enters a specific power supply mode, the power management is transmitted through the original signal transmission protocol (such as point-to-point interconnection technology between integrated circuits such as PCI and Hypertransport) with the north bridge chip. signal, so that the p...

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Abstract

The present invention relates to a transmission method of system instruction in computer system. Said method includes the following steps: implementing power supply management instruction initialization between CPU and second system chip; second system chip executes said power supply management instruction; transferring said power-supply management instruction to first system chip by second system chip; second system chip executes said power supply management instruction; peripheral equipment responds second system chip and implementing said power supply management instruction; notifying it to second system chip; driving peripheral equipment coupled with second system chip and making it implement said power supply management instruction.

Description

technical field [0001] The invention relates to a method for transmitting system commands in a computer system, in particular to transmit the command to enter the power saving mode through the original command transmission protocol between system chips, so that peripheral devices coupled to the system chip can enter the power saving mode smoothly. Background technique [0002] The various components and peripherals in the computer system need to operate through the transmission of information, which uses the bus (bus) that transmits digital data streams, such as the peripheral component connection interface (Peripheral Component Interconnect, PCI), graphics acceleration port (Accelerated Graphics Port, AGP ), the central processing unit (CPU) and the north and south bridge chips or system memory are also connected by a bus, and a plurality of peripherals or components are coupled to the bus to transmit information or data. [0003] like figure 1 As shown, it is customary to...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F1/32
Inventor 张铭浚韩志成赵轩庆赖宗鸿
Owner 辉达维京股份有限公司