MD2241-D128-V3 M-Systems Inc., MD2241-D128-V3 Datasheet - Page 18

• Manufacturer Part Number: MD2241-D128-V3
• Description: Diskonchip Dimm Plus
• Manufacturer: M-Systems Inc.

4.2
The first three blocks on DiskOnChip DIMM Plus contain foundry information, the Data Protect structures, Initial
Program Loader (IPL) code, and bad block mapping information. See Figure 8.
Blocks 0, 1 and 2 in DiskOnChip DIMM Plus contain the following information:
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Block 0
•
•
•
Block 1
•
Block 2
•
•
Low Level Structure of Protected Area
Bad Block Table (page 2). Contains the mapping information to unusable Erase units on the flash media.
UID (16 bytes). This number is written during the manufacturing stage, and cannot be altered at a later
time.
One Time Programming (OTP) area (pages 7-12). The OTP area is written once and then locked.
Data Protect Structure 0. This structure contains configuration information on one of the two user-defined
protected partitions.
Data Protect Structure 1. This structure contains configuration information on one of the two user-defined
protected partitions.
IPL Code (1KB). This is the boot code that is downloaded by the DE to the internal boot block.
Bad Block Table and Factory-Programmed UID
Figure 8: Low Level Format DiskOnChip DIMM Plus
Protected Partition 2 Control
Protected Partition 1 Control
Preliminary Data Sheet, Rev. 1.2
OTP
Pages 0-5
Pages 7-12
Block 0
Block 1
Block 2
DiskOnChip DIMM Plus
94-SR-002-08-8L