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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： | 9/29页 |
| 文件大小： | 323K |
| 代理商： | MD2203-D576 |
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DiskOnChip 2000 DIP
6.
BOOTING FROM DISKONCHIP 2000
6.1
Introduction
DiskOnChip 2000 can operate as the OS boot device. The DiskOnChip default firmware contains
drivers to enable it to perform as the OS boot device under DOS. For other OSs, please refer to the
TrueFFS driver readme file.
6.2
Boot Procedure in PC-Compatible Platforms
When used in PC-compatible platforms, DiskOnChip 2000 is connected to an 8KB memory
window in the BIOS expansion memory range, typically located between 0C8000H to 0EFFFFH.
During the boot process, the BIOS loads the TrueFFS firmware into the PC memory and installs
DiskOnChip 2000 as a disk drive in the system. When the operating system is loaded, DiskOnChip
2000 is recognized as a standard disk. No external software is required to boot from DiskOnChip
2000. Figure 6 illustrates the location of the DiskOnChip 2000 memory window in the PC memory
map.
8k
1M
640k
0
Display
RAM
0C8000H
BIOS
0B0000H
0F0000H
0FFFFFH
DiskOnChip
Extended Memory
Figure 6: DiskOnChip 2000 Memory Window in the PC Memory Map
After reset, the BIOS code first executes the Power On Self-Test (POST) and then searches for all
expansion ROM devices. When DiskOnChip 2000 is found, the BIOS code executes from it the IPL
(Initial Program Loader) code, located in the boot block. This code loads the TrueFFS driver into
system memory, installs DiskOnChip 2000 as a disk in the system, and then returns control to the
BIOS code. The operating system subsequently identifies DiskOnChip 2000 as an available disk.
TrueFFS responds by emulating a hard disk.
From this point onward, DiskOnChip 2000 appears as a standard disk drive. It is assigned a drive
letter and can be used by any application, without any modifications to either the BIOS set-up or the
autoexec.bat/config.sys files. DiskOnChip 2000 can be used as the only disk in the system, with or
without a floppy drive, and with or without hard disks.
The drive letter assigned depends on how DiskOnChip 2000 is used in the system, as follows:
If DiskOnChip 2000 is used as the only disk in the system, the system boots directly from it
and assigns it drive C.
17
Data Sheet, Rev. 3.9
91-SR-002-42-8L
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相关代理商/技术参数 |
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| 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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