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Transaction scheduling for a bus system

A transaction, hub technology, applied in the field of data communication, can solve problems such as waste

Inactive Publication Date: 2002-10-23
INTEL CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Typically, devices manufactured to one bus protocol cannot operate on a different protocol
Requiring users to have lots of duplicate devices just because of differences between protocols is wasteful

Method used

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  • Transaction scheduling for a bus system
  • Transaction scheduling for a bus system
  • Transaction scheduling for a bus system

Examples

Experimental program
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Embodiment Construction

[0023] What is described here is for use between a host controller and a peripheral device (agent), where the agent communicates at a different speed and / or protocol than the host controller. In the following description, for purposes of explanation, numerous specific details are set forth in order to provide the reader with a thorough understanding of the present invention. However, for those skilled in the relevant art, they do not need to read these details to skillfully apply the present invention to different bus systems, especially serial buses. Well-known operations are not shown here in order to avoid obscuring the present invention.

[0024] Some of the descriptions will be expressed in terms that are usually used by those skilled in the art to convey their work to others in the field, such as device or controller driver, bus or master controller, hub , bus agent or agent, etc. Moreover, part of the description will also be expressed by executing programming instruc...

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PUM

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Abstract

A method and device for data communication using a hub. The method includes the step of buffering a single transfer request received at the hub during a transaction between the hub and the host controller, wherein the single transfer request is to be executed between the hub and the agent and will produce a result. The method also includes the step of determining whether a transport query received at the hub from the host controller corresponds to a result.

Description

field of invention [0001] The present invention belongs to the field of data communication in digital systems, and in particular it relates to master controllers and network hubs used to transmit data on buses. Background technique [0002] Typically, a computer or similar device has a bus that connects the device to the computer system. Due to changes in the advanced degree of computer systems and devices (such as computing power), the amount of data that can be exchanged between the computing system and its connected devices continues to increase, which requires an increase in the corresponding bus bandwidth. Some of the increased bandwidth requirements come from multimedia applications, which require data to be transferred at regular intervals (synchronously) from the device to the computing system (inbound) or vice versa (outbound). Examples of devices with effective bandwidth requirements include digital cameras, CD players, speakers, microphones, video playback device...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F13/40H04L12/40H04L12/64
CPCG06F13/4059H04L12/40058H04L12/40123
Inventor J·I·加尼J·S·霍瓦德
Owner INTEL CORP
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