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Storage device and method for status information access of the storage device

A storage device and state information technology, applied in information storage, static memory, read-only memory, etc., can solve problems such as inability to read memory control chips and inability to obtain state information

Active Publication Date: 2009-04-29
SILICON MOTION TECH CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current method of managing flash memory stores the state information of the flash memory in the control chip in the flash memory, and the general operating system and related monitoring programs cannot obtain the state information
Therefore, the status information of the flash memory can only be obtained by accessing the control chip of the flash memory through the application program provided by the manufacturer itself, and the control chips designed by each manufacturer are different, so the application program of each manufacturer Also unable to read memory controller chips from other manufacturers

Method used

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  • Storage device and method for status information access of the storage device
  • Storage device and method for status information access of the storage device
  • Storage device and method for status information access of the storage device

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no. 1 example

[0023] figure 1 Depicting the first embodiment of the present invention, it is a schematic diagram of the connection between a storage device 11 inside a host 1 and a bus interface 12. The bus interface 12 conforms to the ATA / ATAPI specification. The storage device 11 is configured to be fixed inside the host 1, and includes a device data structure field 111, a control module 112 and a non-volatile memory 113, which is a flash memory in this embodiment. The non-volatile memory 113 receives a control signal 101 from the bus interface 12 to perform an access operation, wherein the control signal 101 is from the host 1 . The device data structure field 111 is used to store a state information 102 of the non-volatile memory 113 ; the control module 112 is used to respond to a control signal 101 of the host 1 to access the state information 102 of the device data structure field 111 .

[0024] The status information 102 includes the current usage status and stability of the non-vo...

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Abstract

The invention relates to a storage device and a method for accessing a status message of the storage device. The storage device is arranged in a host machine. A device data structural field selection of the storage device records a status message of a nonvolatile memory, and a control module can access the status message according to a control signal of the host machine. If an operating system or application program of the host machine can acquire the status message of the nonvolatile memory, the stored data is ensured to be safe and proper.

Description

technical field [0001] The present invention relates to a storage device and a method for accessing a status information of a storage device, more specifically, to a storage device including a non-volatile memory, which uses a device data structure field to store a status information. Background technique [0002] Non-volatile memory (non-volatile memory) can be divided into two categories: read-only memory (ROM, Read Only Memory) and flash memory (FlashMemory) according to whether the data in the memory can be overwritten at any time during use. Among them, flash memory is widely used in many electronic devices, such as mobile phones, digital cameras, MP3 players and so on. Although flash memory has many advantages, one of its hardware and electrical characteristics is that it has a limit on the number of times it can be erased. Under normal conditions, the erase limit of SLC (Single Level Cell) type memory is 100,000 times, and that of MLC (Multiple Level Cell) type memor...

Claims

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Application Information

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IPC IPC(8): G11C16/06G11C29/00
Inventor 林弘伟张孝德
Owner SILICON MOTION TECH CORP
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