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Driving recorder, flash memory device and management method thereof

A flash memory, controller technology, applied in the direction of time register, instrument, registration/indication, etc., can solve the problem of tolerance (insufficient life, etc.)

Active Publication Date: 2016-09-21
SOLID STATE SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most flash memory devices suffer from insufficient product tolerance (lifetime)

Method used

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  • Driving recorder, flash memory device and management method thereof
  • Driving recorder, flash memory device and management method thereof
  • Driving recorder, flash memory device and management method thereof

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Embodiment Construction

[0031] Please refer to figure 1 and figure 2 , figure 1 It is a functional block diagram of the flash memory device 100 according to an embodiment of the present invention. figure 2 for figure 1 A schematic diagram of the physical block 140. The flash memory device 100 includes a flash memory 110 and a controller 150 . The flash memory 110 has a plurality of physical blocks 140, and each physical block 140 has a plurality of flash memory units 142 for storing data. The controller 150 can perform read, erase and program (also called write) operations on the flash memory unit 142 .

[0032] Each physical block 140 can also be divided into a plurality of physical pages, and each physical page has a plurality of flash memory units 142 for storing data. In addition, the physical page to which data has been written must be erased before it can be used to write data again, while a physical block is the smallest unit of erasing, and a physical page is the smallest unit of prog...

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Abstract

A flash memory device, a driving recorder having the flash memory device and a management method of the flash memory device. The controller of the flash memory device checks whether the number of blocks is greater than a preset value to determine whether to reconfigure the number of physical blocks in the data area and the spare area. The above number of blocks is the number of physical blocks in the data area that have been replaced by physical blocks in the spare area, or the number of physical blocks in the spare area that have been used to replace the physical blocks in the data area. In this way, the health of the flash memory device can be assessed, and the user can be notified immediately before the flash memory device is damaged.

Description

technical field [0001] The present invention relates to a flash memory device, a driving recorder and a management method of the flash memory device, in particular to a flash memory device, a driving recorder and a flash memory device capable of evaluating the health status of its flash memory management method. Background technique [0002] In general flash memory devices, flash memory operates mainly by injecting electrons into or pulling electrons out of its floating gate (floating gate) by a high-voltage electric field, but these processes belong to the flash memory cell. destructive operation. For this reason, conventionally, the program erasure (programerase; PE) times of the flash memory is generally used as an index for judging the endurance of the flash memory. Most flash memory devices suffer from insufficient product endurance (lifetime). This problem involves the characteristics of the flash memory itself, the architecture and method of software management of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F11/14G06F12/02G07C5/00
Inventor 许智能邱保钟邱胜琳
Owner SOLID STATE SYST