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Protection method and device for transmission wait of LPC interface, and LPC slave equipment of using it

A protection device and equipment technology, applied in the computer field, can solve problems such as non-adaptive ability and deadlock, and achieve the effect of efficiently responding to LPC bus transmission

Inactive Publication Date: 2007-10-03
LENOVO (BEIJING) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, in the above-mentioned system, the LPC slave device 2 may have a deadlock situation in the long waiting state due to the lack of response for a long time, and the LPC slave device 2 does not have the ability to adapt to the LPC bus. The response status of the transfer

Method used

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  • Protection method and device for transmission wait of LPC interface, and LPC slave equipment of using it
  • Protection method and device for transmission wait of LPC interface, and LPC slave equipment of using it
  • Protection method and device for transmission wait of LPC interface, and LPC slave equipment of using it

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Embodiment 1

[0024] FIG. 2 shows a structural block diagram of a protection device for transmission waiting of an LPC interface (that is, an LPC interface control device 4 ) according to Embodiment 1 of the present invention. It should be noted that the overall system structure of the LPC slave device 2 for data transmission is the same as that shown in FIG. Flag bit for fast or slow device.

[0025] As shown in FIG. 2 , the LPC interface control device 4 according to the present invention includes a type judgment unit 41 and a response unit 42 .

[0026] Wherein, when the LPC master device 1 initiates data transmission with the LPC slave device 2, the type judging unit 41 in the LPC interface control device 4 judges that the LPC slave device 2 is a fast device or The slow device, when it is judged as a fast device, makes the LPC slave device 2 enter a short wait, or when it is judged as a slow device, makes this LPC slave device 2 enter a long wait. The pre-stored flag bits in the LPC s...

Embodiment 2

[0047] FIG. 4 is a block diagram showing a protection device for transmission waiting of an LPC interface (that is, an LPC interface control device 4 ) according to Embodiment 2 of the present invention. It should be noted that the overall system structure of the LPC slave device 2 for data transmission is the same as that shown in FIG. Flag bit for fast or slow device.

[0048] As shown in FIG. 4 , the LPC interface control device 4 according to Embodiment 2 of the present invention includes a type judgment unit 41 , a response unit 42 , and a statistics unit 43 .

[0049] Wherein, the structure and function of the type judgment unit 41 and the response unit 42 in Embodiment 2 are the same as those shown in Fig. 2 and Fig. 3, the only difference is that:

[0050] The statistics unit 43 makes statistics on the historical information of the LPC slave device responding to data transmission, and updates the type determined by the type determination unit 41 according to the histo...

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Abstract

The present invention provides a method for protecting transmission wait of LPC interface, protection device and LPC slave equipment using said protection method and device. It is characterized by that the invented protection method and protection device mainly are used for protecting data transmission between LPC main equipment and LPC slave equipment by means of LPC interface. Said invention also provides the concrete operation steps of said protection method.

Description

technical field [0001] The invention relates to the field of computer technology, in particular to a protection method and device for transmission waiting of an LPC interface, and an LPC slave device using the same. Background technique [0002] In recent years, due to the high development of information-related industries and the increasing demands of consumers on the computing and transmission speed of information products, the previous common ISA (Industry Standard Architecture-industry standard design) interface is no longer sufficient to meet user needs. Because the ISA interface can only work at a frequency of 8MHz, the transmission speed is very slow, and it requires too many pins (60 pins), so it not only occupies space, but also makes the cost of the slot remain high. [0003] Under the trend of today's LPC motherboard architecture pursuing lightness and compactness, Intel (Intel) proposed a new generation of interface-Low Pin Count Interface (Low Pin Count Interfac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F13/38
Inventor 吕渊毛兴中谢巍王旭
Owner LENOVO (BEIJING) CO LTD
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