MD3331-D64-V3 M-Systems Inc., MD3331-D64-V3 Datasheet - Page 21

• Manufacturer Part Number: MD3331-D64-V3
• Description: Diskonchip Millennium Plus
• Manufacturer: M-Systems Inc.

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DiskOnChip Millennium Plus consists of the following major functional blocks, as shown in Figure 7 and Figure 8.
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DiskOnChip Millennium Plus 64MB consists of two stacked DiskOnChip Millennium Plus 32MB devices in a dual-die package.
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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, cascaded
configuration and hardware write protection.
Protection and Security-Enabling containing read/write protection and One-Time Programming (OTP),
for advanced data/code security and protection
Programmable Boot Block with XIP capability enhanced with a Download Engine (DE) for system
initialization capability
Reed-Solomon-based Error Detection and Error Correction Code (EDC/ECC) for on-the-fly error
handling
Data Pipeline through which the data flows from the system to the NAND flash arrays.
Control & Status block that contains registers responsible for transferring the address, data and control
information between the TrueFFS driver and the flash
Flash Interface whose architecture depends on the capacity: 32MB (256Mb) and 64MB
implements a unique interleaved, dual bank architecture of two embedded 16MB NAND flash arrays
(Figure 7); 16MB uses a single NAND flash array (Figure 8).
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 7: Standard Interface Simplified Block Diagram, 32/64MB Devices
Data Sheet, Rev. 1.7
media.
DiskOnChip Millennium Plus 16/32/64MByte
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(512Mb)
93-SR-002-03-8L