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System control chip with multiplex pattern bus structure and computer system

A technology for controlling chips and computer systems, applied in the field of shape port bus, can solve problems such as increased system cost and waste of resources

Inactive Publication Date: 2005-11-23
VIA TECH INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] figure 2 The system structure shown can certainly solve the problem of upgrading the integrated graphics subsystem, but this structure also leads to another problem of resource waste
The integrated graphics / video subsystem 22 on the motherboard 1 or the graphics / video subsystem 24 connected to the system through an AGP slot (slot) are all independently operated processing chips, and there are many overlapping resources between the two. Naturally, the cost of the system increases

Method used

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  • System control chip with multiplex pattern bus structure and computer system
  • System control chip with multiplex pattern bus structure and computer system
  • System control chip with multiplex pattern bus structure and computer system

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Embodiment Construction

[0017] The multiplex graphics bus structure of the present invention is mainly to connect a virtual AGP in parallel in the traditional AGP

[0018] (Virtual AGP, VAGP for short) is connected to the internal integrated graphics subsystem, and checks all transmitted data or requests through a snooper set in the North Bridge SoC, so as to efficiently configure resources in the external and internal graphics subsystems. The content of the present invention will be described in detail below with an embodiment in conjunction with the accompanying drawings. In this embodiment, AGP is used as an example to illustrate the structure of the multiplex graphics bus, but it can also be applied to other different graphics or video buses.

[0019] image 3 Represent the computer system block diagram with multiplex AGP video structure in the present embodiment, wherein with figure 1 The same elements are denoted by the same symbols. Such as image 3 As shown, the northbridge system control...

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Abstract

A system control chip and computer system with multiplex graphics bus structure is disclosed. Said system control chip can be connected to an external graphic processor via an external graphics bus (AGP, for example) and has an internal graphic process which is connected to the extended part of external graphics bus in the system control chip via a virtual graphics bus. A snooper is included to snoop the requests between graphic processor and system so as to integrate the resources of external and internal graphics processors.

Description

technical field [0001] The invention relates to a system control chip and a computer system with a multiplex graphics bus structure, especially for the most advanced graphics / video bus structure of personal computers --- the Advanced Graphic Port (AGP for short) bus. An improved dual graphics bus structure improves the performance of the graphics / video subsystem and fully utilizes the resources of different video processors without changing the original bus protocol. Background technique [0002] In a traditional computer system, a general graphics subsystem is connected to the system in the form of a plug-in card. The way the graphics subsystem is connected to the computer system is mainly through the expansion bus (expansion bus), and gradually changes with the improvement of technology, from the early Industry Standard Architecture (ISA) bus to the peripheral Component Interface (Peripheral Component Interface, referred to as PCI) bus, to the latest AGP bus. [0003] f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F13/14
Inventor 严守晨赖瑾
Owner VIA TECH INC
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