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Automatic configurating system for PCI-E bus

An automatic configuration, PCI-E technology, applied in the field of PCI Express, can solve the problems of affecting data transmission speed, waste of PCI-E bus input and output bandwidth, loss of flexibility of PCI-E bus design, etc. effect of speed

Inactive Publication Date: 2008-10-08
INVENTEC CORP
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Problems solved by technology

However, if no expansion card is plugged into the PCI-E×4 bus slot and only the PCI-E×8 bus slot is plugged with an expansion card, as mentioned above, since the channels on the PCI-E are evenly allocated to PCI -E×4 bus and PCI-E×8 bus slot, the channel connected to the PCI-E×4 bus slot is idle, resulting in the ineffective use of some channels of the PCI bus, which affects the data transmission speed, PCI-E bus Part of the input and output bandwidth is wasted, and the design of the PCI-E bus also loses its flexibility

Method used

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  • Automatic configurating system for PCI-E bus

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Embodiment

[0018] figure 1 It is a schematic diagram of the basic architecture of the PCI-E (Peripheral Component Interconnect Express; PCI-E) bus automatic configuration system of the present invention. The PCI-E bus automatic configuration system of the present invention is applied in a computer system (figure is not marked), and this computer system comprises at least: two groups of PCI-E bus slots, for simplifying accompanying drawing and explanation, comprise with this computer system below The first and second PCI-E bus slots 20, 21 are described as examples. In addition, the computer system also includes a central processing unit (CPU), a north bridge chip (NB) or a south bridge chip (SB).

[0019] In the present invention, the first and second PCI-E bus slots 20, 21 are single channel (×1), two channels (×2), four channels (×4), eight channels (×8), sixteen The first and second PCI-E bus slots are equipped with ground pins GND. In the present invention, the first PCI-E bus slo...

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Abstract

A PCI-E main line automatically collocating system, and it mainly includes examination module and switch module. The examination module examine the first PCI-E main line slot with the bigger width of message path and the state value of logic signal of the second PCI-E main line slot with smaller width of message path., and obtain the information whether there is extended card in the first and second main line slot. If the examination module examines there is an extended card in the slot of the first PCI-E main line and there is not card in the second PCI-E slot, it can produce the output of switch control signal, and control the switch module to do switch. The message path which is used by the second PCI-E main line slot can be used by the first PCI-E slot. This invention can improve the usage efficient of the PCI-E message path and the velocity of the transmission, overcome the disadvantage of there is no flexibility of the PCI-E main line design.

Description

technical field [0001] The present invention relates to a kind of PCI Express (Peripheral Component InterconnectExpress; PCI-E) bus automatic configuration system, especially about a kind of application in the computer system, the PCI-E bus automatic bus channel (Lane) is configured Configure the system. Background technique [0002] With the advancement of electronic and computer technology and the realization of more and more powerful functions, it is now possible to upgrade functions or add new functions by carrying new peripheral devices, but after carrying new peripheral devices, the computer system must be restarted to complete the peripheral device driver loading. , which needs to stop existing operations, which is very inconvenient in actual use, especially for servers and other equipment that have high requirements for time continuity and high reliability, which will cause serious consequences such as data loss and service interruption. [0003] Therefore, the indu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F13/40
Inventor 陈昆甫
Owner INVENTEC CORP
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