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Description: NAND flash spare area assignment
Platform: |
Size: 110592 |
Author: 郑臣鑫 |
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Description: Single power supply operation
— Full voltage range: 2.7 to 3.6 volt read, erase, and
program operations
— Separate VCCQ for 5 volt I/O tolerance
n Automated Program and Erase
— Page program: 512 + 16 bytes
— Block erase: 8 K + 256 bytes
n Block architecture
— 8 Kbyte blocks + 256 byte spare area
(separately erasable, readable, and programmable)
— 512 byte page + 16 byte spare area for ECC and other
system overhead information
n Fast read and program performance (typical values)
— Read: < 7 μs initial, < 50 ns sequential
— Program: 200 μs (full page program at 400 ns/byte)
— Erase: < 2 ms/8 Kbyte block
n Pinout and package
— Industry Standard NAND compatible pinout with 8-bit
I/O bus and control signals
— TSOP-II 44/40 pin package (standard and reverse)
with copper lead frame for higher reliability
— 40-ball FBGA package provides higher reliability-Single power supply operation
— Full voltage range: 2.7 to 3.6 volt read, erase, and
program operations
— Separate VCCQ for 5 volt I/O tolerance
n Automated Program and Erase
— Page program: 512+ 16 bytes
— Block erase: 8 K+ 256 bytes
n Block architecture
— 8 Kbyte blocks+ 256 byte spare area
(separately erasable, readable, and programmable)
— 512 byte page+ 16 byte spare area for ECC and other
system overhead information
n Fast read and program performance (typical values)
— Read: < 7 μs initial, < 50 ns sequential
— Program: 200 μs (full page program at 400 ns/byte)
— Erase: < 2 ms/8 Kbyte block
n Pinout and package
— Industry Standard NAND compatible pinout with 8-bit
I/O bus and control signals
— TSOP-II 44/40 pin package (standard and reverse)
with copper lead frame for higher reliability
— 40-ball FBGA package provides higher reliability
Platform: |
Size: 847872 |
Author: enyou |
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Description: Samsung NAND flash Spare assignment recommendation
Platform: |
Size: 135168 |
Author: Jack Tsai |
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Description: The K9F6408X0C is a 8M(8,388,608)x8bit NAND Flash Memory with a spare 256K(262,144)x8bit.
Platform: |
Size: 376832 |
Author: qwerty |
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Description:
Platform: |
Size: 110592 |
Author: henry chan |
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Description: 基于LPC2478的nandflash驱动，附原理图，已测。-Based on LPC2478 of nandflash drive, with schematics, has been tested.
Platform: |
Size: 101376 |
Author: xianglei |
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Description: 一、 概况
1. NAND 闪存的种类
2. NAND 闪存的框架
3. 非全页的编程（Partial Page Programming）
4. 从NAND 启动（Booting From NAND）
二、 NAND 闪存的可靠性问题
1. 坏块管理（Bad Block Management，BBM)
2. 坏块管理算法的规范 （BBM Algorithm Specification）
3. 6 个工厂编程的坏块管理的要素（Six BBM Factory Programming Elements）
1) 坏块的替换策略（Bad Block Replacement Strategy，BBR）
2) 分区（Partitioning）
3) 纠错码（Error Correction Codes ，ECC )
4) 备用区的使用（Spare Area Placement，SAP）
5) 未用好块的格式（Free Good Block Formatting）
6) 动态元数据（Dynamic Metadata）
4. 系统举例
5. 通用的工厂编程坏块管理方案（Universal Factory Programming BBM Scheme）
6. 第三方和客制化的坏块管理方案（Third-party and Custom BBM Schemes）
三、 对Managed NAND 编程（Programming Managed NAND）
四、 NAND 的序列号（Serializing NAND）
五、 结论-I. Overview
1. NAND type flash memory
2. NAND flash memory framework
3. Non-full-page programming (Partial Page Programming)
4. From the NAND boot (Booting From NAND)
Second, NAND flash memory reliability problems
1. Bad block management (Bad Block Management, BBM)
2. Bad block management algorithm specification (BBM Algorithm Specification)
3.6 factory-programmed elements of bad block management (Six BBM Factory Programming Elements)
1) bad block replacement policy (Bad Block Replacement Strategy, BBR)
2) partition (Partitioning)
3) error-correcting code (Error Correction Codes, ECC)
4) the use of spare area (Spare Area Placement, SAP)
5) the format is not good use of the block (Free Good Block Formatting)
6) The dynamic metadata (Dynamic Metadata)
4. System Example
5. GM s factory-programmed bad block management program (Universal Factory Programming BBM Scheme)
6. Third-party and custom bad block management program (Third-party and Custom BB
Platform: |
Size: 2125824 |
Author: livimi |
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Description: 1-bit ECC: calculation and correction by SW ECC stored at end of spare area.
Platform: |
Size: 1024 |
Author: fieletg |
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