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Memory control method, memory controller and memory storage device

A memory controller, storage device technology, applied in the direction of input/output to the record carrier, etc., can solve problems such as failure, insufficient power to write, etc.

Active Publication Date: 2013-01-23
PHISON ELECTRONICS
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  • Abstract
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AI Technical Summary

Problems solved by technology

However, for a memory card or a flash drive that uses the power provided by the data transmission interface as the main power source, when multiple memory chips are enabled together (that is, in a busy state or a transmission state), the power provided by the data transmission interface May be insufficient and cause write failure

Method used

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  • Memory control method, memory controller and memory storage device
  • Memory control method, memory controller and memory storage device
  • Memory control method, memory controller and memory storage device

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Embodiment Construction

[0096] In order to avoid the system instability caused by the insufficient power supply of the data transmission interface, the present invention proposes a memory control method capable of using different data erasing modes according to different data transmission modes. Such as figure 1 As shown in the exemplary embodiment of the present invention, in this memory control method, the memory chips of the memory storage device are grouped into a plurality of memory chip groups (S101), and the transmission mode between the memory storage device and the host system is identified as belonging to the first transmission mode or a second transmission mode (S103). When the transfer mode belongs to the first transfer mode, use the first erasing mode to erase a plurality of data stored in these memory chips (S105) and when the transfer mode belongs to the second transfer mode, use the second erase mode erasing mode to erase data stored in the memory chips (S107), wherein the operating ...

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Abstract

The invention provides a memory control method, a memory controller and a memory storage device. The method comprises the steps of identifying whether a transmission mode between the memory storage device and a host computer system belongs to a first transmission mode or a second transmission mode, and grouping memory chips of the memory storage device into a plurality of memory chip groups. The method also comprises the steps of erasing data stored in the memory chips by a first erase mode when the transmission mode belongs to the first transmission mode, and erasing the data stored in the memory chips by a second erase mode when the transmission mode belongs to the second transmission mode, wherein at least one part of memory chip groups in the first erase mode can be simultaneously enabled, and any two memory chip groups in the second erase mode are not simultaneously enabled.

Description

technical field [0001] The invention relates to a memory control method for a rewritable non-volatile memory module, a memory controller and a memory storage device for implementing the method. 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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/06
Inventor 侯建弘麦灏文
Owner PHISON ELECTRONICS
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