MD2241-D128-V3 M-Systems Inc., MD2241-D128-V3 Datasheet - Page 12

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

3.
3.1
DiskOnChip DIMM Plus consists of the following major functional blocks, as shown in Figure 4:
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Theory of Operation
Overview
System Interface for host interface
Configuration Interface for configuring the DiskOnChip to operate in 8/16 bit mode, and hardware write
protection.
Protection and Security-Enabling block, containing Write/Read protection and One-Time Programming
(OTP), for advanced data/code security and protection
Programmable Boot Block enhanced with a Download Engine (DE) for system initialization capability
Reed-Solomon Error Detection and Error Correction Code (EDC/ECC) for on-the-fly error handling
Data Pipeline through which the data flows from the host to the NAND flash arrays.
Control & Status that
information between the TrueFFS driver and the flash media.
Flash Interface and a 32MB interleaved dual-bank architecture consisting of two embedded 16MB
NAND flash arrays
Bus Control for translating the host bus address, data and control signals into valid NAND flash signals.
Address Decoder to enable the relevant unit inside DiskOnChip controller, according to the address range
received from the system interface.
Figure 4: DiskOnChip DIMM Plus Simplified Block Diagram
contains registers responsible for transferring the address, data and control
Preliminary Data Sheet, Rev. 1.2
DiskOnChip DIMM Plus
94-SR-002-08-8L