Hard disk access method and system supporting highest hard disk transmission rate

A technology of transfer rate and access method, applied in the field of hard disk access methods and systems supporting the highest transfer rate of hard disks, and can solve the problems of sacrificing the highest transfer rate of hard disks and decreasing performance.

Active Publication Date: 2012-05-02
VIA TECH INC
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  • Description
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  • Application Information

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Problems solved by technology

However, such an approach will sacrifice the maximum transfer rate that the hard disk can support (for example: 133MB / s of transfer rate mode 5)
That is to say, when the controller reads data, the hard disk can originally operate in the transmission rate mode 5, but based on the consideration of the phase shift, it can only be performed in the transmission rate mode 4 mode, resulting in the overall performance of the system decline

Method used

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  • Hard disk access method and system supporting highest hard disk transmission rate
  • Hard disk access method and system supporting highest hard disk transmission rate
  • Hard disk access method and system supporting highest hard disk transmission rate

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Embodiment Construction

[0040]Generally speaking, when a controller (such as a hard disk controller) accesses a hard disk, it must operate in a synchronous access environment, that is, the frequency signal of the controller is synchronized with the frequency signal of the hard disk. In order to avoid the phase shift of the signal, in the past, the controller and the hard disk jointly reduce the transmission rate to solve the problem. The present invention uses software to create an asynchronous access environment to solve the above-mentioned phase offset problem. The so-called "asynchronous access environment" means: when reading data, the controller can not be less than the maximum transmission rate supported by the hard disk (for example: the maximum transmission rate in the standard specification of the hard disk, or the same as the maximum transmission rate supported by the hard disk. The same transmission rate as the highest transmission rate), read the hard disk, and is no longer limited by the...

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Abstract

The invention discloses a hard disk access method and a hard disk access system supporting a highest hard disk transmission rate, which are suitable for accessing data of a hard disk by using a controller. Both the controller and the hard disk support a plurality of transmission rates. The hard disk access method comprises the following steps: obtaining the highest hard disk transmission rate which can be supported by the hard disk, wherein when the controller is reading the data in the hard disk, the transmission rate of the hard disk is not lower than the highest hard disk transmission rate, and maintaining the transmission rate of the hard disk at the highest transmission rate to read the data of the hard disk; and when the controller is to write the data into the hard disk, lowering the transmission rate to a transmission rate which is lower than the highest hard disk transmission rate and maintaining the transmission rate of the hard disk at the highest hard disk transmission rate to write the data into the hard disk. Therefore, the access of the highest hard disk transmission rate can be maintained.

Description

technical field [0001] The present invention relates to a hard disk access method and system, and in particular to a hard disk access method and system supporting the highest transmission rate of the hard disk. Background technique [0002] With the advancement of electronic technology, mobile devices such as mobile phones, personal digital assistants (PDAs), and notebook computers that do not take up much space and can be carried around are also being introduced. These mobile devices have gradually won the favor of users due to their thin, light, small size and diversified functions, and have become one of the most popular commodities in the current market. Equipped with high-speed processors and high-capacity storage media, these mobile devices can integrate various fashionable functions. In addition to general camera, call, and Internet functions, now even high-end functions such as multimedia playback, games, and navigation are also available. It can be integrated on th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/06
Inventor 黄宗庆张钦汉王嘉鸿
Owner VIA TECH INC
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