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参数资料
| 型号： | MD2202-D48-V3 |
| 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： | 29/29页 |
| 文件大小： | 323K |
| 代理商： | MD2202-D48-V3 |
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DiskOnChip 2000 DIP
3.
THEORY OF OPERATION
3.1
Overview
DiskOnChip 2000 consists of the following major functional blocks, as shown in Figure 3:
System Interface
for host interface.
Boot Block
that contains IPL ROM required for recognition during BIOS expansion search in
PC architectures.
Reed-Solomon-based Error Detection and Error Correction Code (EDC/ECC) for on-the-
fly error handling.
Flash Control block
that contains registers responsible for transferring the address, data and
control information between the TrueFFS driver and the flash media.
Flash
Control
System
Interface
CE#
WE#
OE#
D[0:7]
Boot Block
(IPL ROM)
A[0:12]
EDC/ECC
Figure 3: DiskOnChip 2000 Simplified Block Diagram
3.2
System Interface
The system interface block provides an easy-to-integrate SRAM-like (also EEPROM-like) interface
to DiskOnChip 2000, enabling it to interface with various CPU interfaces, such as a local bus, ISA
bus, SRAM interface, EEPROM interface or any other compatible interface.
A 13-bit wide address bus enables access to the DiskOnChip 8KB memory window (as shown in
Figure 5). The Chip Enable (CE#), Write Enable (WE#) and Output Enable (OE#) signals trigger
read and write cycles. A write cycle occurs while both the CE# and the WE# inputs are asserted.
Similarly, a read cycle occurs while both the CE# and OE# inputs are asserted. Note that
DiskOnChip 2000 does not require a clock signal. The CE#, WE# and OE# signals trigger the
controller (e.g., system interface block, bus control and data pipeline) and flash access.
9
Data Sheet, Rev. 3.9
91-SR-002-42-8L
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| MD2202-D48-V3-X | 功能描述:IC DOC2000 48MB 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 |
| MD2202-D48-X | 功能描述:IC DOC2000 48MB 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 |
| MD2202-D64 | 功能描述:IC DOC2000 64MB 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 |
| MD2202-D64-V3 | 功能描述:IC DOC2000 64MB 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 |
| MD2202-D64-V3-X | 功能描述:IC DOC2000 64MB 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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