The Design of Flash Memory Data Management for Portable Storage Devices

• Main Authors: Jui-Lung Shih, 施瑞隆
• Other Authors: Tien-Fu Chen
• Format: Others
• Language: en_US
• Published: 2003
• Online Access: http://ndltd.ncl.edu.tw/handle/78694437101664778264

碩士 === 國立中正大學 === 資訊工程研究所 === 91 === Flash memory has attractive features such as shock resistance, low power consumption, non-volatility, small size, light weight, and fast access speed. However, it has drawbacks such as a write-once/bulk-erase device, no in-place update, and limited erase cycles. Because of so many advantages, flash memory always plays the part of data storage systems in mobile devices and embedded systems. Meanwhile, digital content is getting more and more important in our life. The issues of usage rights management of digital content are usually discussed. Therefore, we propose a new system for managing digital content. Moreover, flash memory is used popularly for storing digital content. We focus on the performance and the reliability of flash memory. Furthermore, we propose a new architecture of using multiple buses and ECC groups. The multiple buses architecture is for improving the I/O performance of flash memory. And the ECC groups on flash memory are for recovering more errors and providing higher reliability.