MD2211-D16-V3 SanDisk, MD2211-D16-V3 Datasheet - Page 11

• Manufacturer Part Number: MD2211-D16-V3
• Manufacturer: SanDisk
• Type: Flash Diskr

Specifications of MD2211-D16-V3

• Density: 16MByte
• Operating Supply Voltage (typ): 3.3V
• Operating Temperature (min): 0C
• Operating Temperature (max): 70C
• Package Type: TSOP-I
• Mounting: Surface Mount
• Pin Count: 48
• Operating Temperature Classification: Commercial
• Operating Supply Voltage (min): 3V
• Operating Supply Voltage (max): 3.6V
• Lead Free Status / RoHS Status: Supplier Unconfirmed

After reset, the BIOS code first executes the POST (Power On Self-Test) and then searches for all
expansion ROM devices. When the DiskOnChip is found, the BIOS code executes the IPL code (Initial
Program Loader) from the XIP boot block located in the DiskOnChip. This code loads the TrueFFS driver
into system memory, installs the DiskOnChip as a disk in the system, and then returns control back to the
BIOS code. The operating system subsequently identifies the disks that are available and the DiskOnChip
software (TrueFFS) responds by emulating a hard disk.
From this point forward, the DiskOnChip appears as a standard disk drive. It is assigned a drive letter and it
can be used by any application. The DiskOnChip 2000 TSOP does not require any modifications to either
the BIOS set-up or the autoexec.bat/config.sys files.
The DiskOnChip can be used as the only disk in the system. In this case, the system boots directly from the
DiskOnChip and is accessed as drive C:. It can work with or without a floppy drive, or with additional hard
disks.
91-SR-002-32-8L Rev. 0.2
When working with a hard disk, the DiskOnChip can be configured as the last drive (the default
configuration). In this case, the hard disk will be C: and the DiskOnChip will be D:.
Alternatively, it can be configured as the first drive. In this case, the hard disk will be D: and the
DiskOnChip will be C:.
DiskOnChip can be used as the OS boot device when configured as drive C:. In this configuration, the
DiskOnChip must be formatted as a bootable device by copying the OS files onto the disk. When running
DOS, you can use the SYS command to do this.
Figure 4: PC Memory Map
0FFFFFh
0C8000h
0A0000h
0F0000h
PRELIMINARY
DiskOnChip
Extended
Memory
Display
BIOS
RAM
DiskOnChip 2000 TSOP 16MB Data Sheet
1MB
640KB
0
8KB
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