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Data writing-in method, rewritable non-volatile memory controller and system

A memory controller and data writing technology, applied in the direction of electrical digital data processing, instruments, input/output to record carrier, etc., can solve problems such as instability, lack of rewritable non-volatile memory storage devices, etc., to achieve avoid unstable effects

Active Publication Date: 2011-09-21
PHISON ELECTRONICS
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for a flash drive that uses the power provided by the data transmission interface as the main power source, when multiple memory dies are operating together (that is, in a busy state or a transmission state), the power provided by the data transmission interface may be reduced. Insufficient and cause instability of rewritable non-volatile memory storage device

Method used

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Embodiment Construction

[0059] In order to avoid the system instability caused by the insufficient power supply of the data transmission interface, the present invention can use different data writing modes according to different data transmission interfaces. Such as figure 1 As shown, in this method, firstly, it is determined whether the data transmission interface of the host system is compatible with the first interface specification or the second interface specification ( S101 ). If the data transmission interface is compatible with the first interface specification, the data will be written into the memory die by using the normal mode (S103), wherein in the normal mode, the memory dies which are activated simultaneously among the memory dies The number is not greater than the first number and the memory dies operate at the first operating frequency. If the data transmission interface is compatible with the second interface specification, the data will be written into the memory die by using the...

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Abstract

The invention provides a data writing-in method, a rewritable non-volatile memory controller and a system, which are used for writing data from a host computer system into a plurality of memory crystal grains of a memory device of a rewritable non-volatile memory. The data writing-in method comprises the following steps of: judging whether a data transmission interface of the host computer system is compatible with a first interface specification or a second interface specification; writing data into the memory crystal grains in a general mode when the data transmission interface of the host computer system is compatible with the first interface specification; and writing data into the memory crystal grains in a power-saving mode when the data transmission interface of the host computer system is compatible with the second interface specification. Due to the adoption of the data writing-in method, the problem that the stability of the memory device of the rewritable non-volatile memory is lowered due to insufficient power supply provided by the data transmission interface can be solved effectively.

Description

technical field [0001] The invention relates to a data writing method, in particular to a data writing method, a rewritable non-volatile memory controller and a system. Background technique [0002] Digital cameras, mobile phones, and MP3 players have grown rapidly in recent years, making consumers' demand for storage media also increase rapidly. Because rewritable non-volatile memory (rewritable non-volatile memory) has the characteristics of data non-volatility, power saving, small size and no mechanical structure, it is suitable for portable applications and is most suitable for this type of portable on battery-powered products. A flash drive is a storage device that uses a rewritable non-volatile memory as a storage medium. Due to its small size and large capacity, the rewritable non-volatile memory has been widely used for storing important personal data. Therefore, the rewritable non-volatile memory industry has become a very popular part of the electronics industry...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/06G06F11/00
Inventor 辜芳立
Owner PHISON ELECTRONICS
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