MD8331-D2G-V3-X-P SanDisk, MD8331-D2G-V3-X-P Datasheet - Page 60

• Manufacturer Part Number: MD8331-D2G-V3-X-P
• Description: IC MDOC G4 2GB 69-FBGA
• Manufacturer: SanDisk

Specifications of MD8331-D2G-V3-X-P

• Format - Memory: FLASH
• Memory Type: FLASH - Nand
• Memory Size: 2G (256M x 8)
• Speed: 33ns
• Interface: Parallel
• Voltage - Supply: 2.5 V ~ 3.6 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 69-FBGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 585-1149-2; MD8831-D2G-V3-X-P; MD8832-D2G-V3-X-P

9.7
A typical RISC architecture uses a boot ROM for system initialization. The boot ROM is also
required to access DiskOnChip G4 during the boot sequence in order to load OS images and the
device drivers.
M-Systems’ Boot Software Development Kit (BDK) and DOS utilities enable full control of
DiskOnChip G4 during the boot sequence. For a complete description of these products, refer to the
DiskOnChip Boot Software Development Kit (BDK) developer guide and the DiskOnChip Software
Utilities user manual. These tools enable the following operations:
Figure 16 illustrates an example of one system boot flow using DiskOnChip G4 in a RISC
architecture.
60
• Formatting DiskOnChip G4
• Creating multiple partitions for different storage needs (OS images files, backup partitions,
• Loading the OS image file
Boot Replacement
and FAT partitions)
RAM
Boot Loa de r
Basic System Initia lization
Boot Loader Copies
OS Image to RA M
OS Start-Up Code
Pow er-Up
OS Image
Figure 16: System Boot Flow with DiskOnChip G4
Data Sheet (Preliminary) Rev. 0.3
Copy Image
to RA M
Take Image f rom
DiskOn Chip G4
DiskOnChip G4 128MB (1Gb)/256MB (2Gb) 1.8V
Disk On Chip G4
(OS Image Storage)
Flash Disk Partition
BInary Partition
(File Storage)
92-DS-1105-00