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参数资料
| 型号： | MD2203-D576 |
| 厂商： | SANDISK CORP |
| 元件分类： | 存储控制器/管理单元 |
| 英文描述： | FLASH MEMORY DRIVE CONTROLLER, PDIP32 |
| 封装： | DIP-32 |
| 文件页数： | 2/29页 |
| 文件大小： | 323K |
| 代理商： | MD2203-D576 |
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DiskOnChip 2000 DIP
3.3
Boot Block
The boot block is responsible for answering the BIOS expansion search in PC architectures. After
the BIOS identifies DiskOnChip 2000 as a valid BIOS expansion device, it executes the code stored
in the boot block. The BIOS then loads the TrueFFS software from the flash memory into the host
memory, delivering full disk capabilities to the operating system. This code is identical for all
DiskOnChip 2000 capacities, since TrueFFS automatically detects the memory density of
DiskOnChip 2000.
3.4
Error Detection Code/Error Correction Code (EDC/ECC)
NAND flash, being an imperfect memory, requires error handling. DiskOnChip 2000 implements
Reed-Solomon Error Detection Code (EDC). A hardware-generated, 6-byte error detection
signature is computed each time a page (512 bytes) is written to or read from DiskOnChip 2000.
The TrueFFS driver implements complementary Error Correction Code (ECC). Unlike error
detection, which is required on every cycle, error correction is relatively seldom required, hence
implemented in software. The combination of DiskOnChip’s built-in EDC mechanism and the
TrueFFS driver ensures highly reliable error detection and correction, while providing maximum
performance.
The following detection and correction capability is provided for each 512 bytes:
Corrects up to two 10-bit symbols, including two random bit errors.
Corrects single bursts up to 11 bits.
Detects single bursts up to 31 bits and double bursts up to 11 bits.
Detects up to 4 random bit errors.
3.5
Flash Control
The Flash Control block contains registers responsible for transferring the address, data and control
information between the DiskOnChip TrueFFS driver and the flash media. Additional registers are
used to monitor the status of the flash media (ready/busy) and of the DiskOnChip controller.
10
Data Sheet, Rev. 3.9
91-SR-002-42-8L
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MD2203-D576-V3 | 功能描述:IC DOC2000 576MB 32-DIP RoHS:否 类别:存储卡，模块 >> 存储器 - 模块 系列:- 标准包装:100 系列:- 存储器类型:SDRAM 存储容量:1GB 速度:133MHz 特点:- 封装/外壳:168-DIMM |
| MD2203-D576-V3-X | 功能描述:IC DOC2000 576MB 32-DIP RoHS:否 类别:存储卡，模块 >> 存储器 - 模块 系列:- 标准包装:100 系列:- 存储器类型:SDRAM 存储容量:1GB 速度:133MHz 特点:- 封装/外壳:168-DIMM |
| MD2203-D576-X | 功能描述:IC DOC2000 576MB 32-DIP RoHS:否 类别:存储卡，模块 >> 存储器 - 模块 系列:- 标准包装:100 系列:- 存储器类型:SDRAM 存储容量:1GB 速度:133MHz 特点:- 封装/外壳:168-DIMM |
| MD2203-D768 | 功能描述:IC DOC2000 768MB 32-DIP RoHS:否 类别:存储卡，模块 >> 存储器 - 模块 系列:- 标准包装:100 系列:- 存储器类型:SDRAM 存储容量:1GB 速度:133MHz 特点:- 封装/外壳:168-DIMM |
| MD2203-D768-V3 | 功能描述:IC DOC2000 768MB 32-DIP RoHS:否 类别:存储卡，模块 >> 存储器 - 模块 系列:- 标准包装:100 系列:- 存储器类型:SDRAM 存储容量:1GB 速度:133MHz 特点:- 封装/外壳:168-DIMM |
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