MD3331-D64 ETC-unknow, MD3331-D64 Datasheet - Page 25

• Manufacturer Part Number: MD3331-D64
• Description: Diskonchip Millennium Plus
• Manufacturer: ETC-unknow

3.8
DiskOnChip Millennium Plus uses a two-stage pipeline mechanism, designed for maximum performance while
enabling on-the-fly data manipulation, such as read/write protection and Error Detection/Error Correction.
3.9
The Control & Status block contains registers responsible for transferring the address, data and control information
between the DiskOnChip TrueFFS driver and the flash media. Additional registers are used to monitor the status of
the flash media (ready/busy) and of the DiskOnChip controller. For further information on the DiskOnChip
Millennium Plus registers, refer to Section 7).
3.10 Flash Architecture
A 16MB flash bank consists of 1024 blocks organized in 32 pages, as follows:
16MB DiskOnChip Millennium Plus devices are designed with a single-bank 16MB flash array, consisting of 1024
blocks organized in 32 pages.
32MB DiskOnChip Millennium Plus devices are designed with a dual-bank interleave architecture, consisting of
two banks of 16MB NAND flash. The interleave architecture allows 16-bit internal flash access instead of the
standard 8-bit flash access, thereby providing double the performance for read, write and erase operations. The
interleave architecture consist of 1024 dual blocks organized in 32 dual pages, for a total capacity of 32MB, as
shown in Figure 11.
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Data Pipeline
Control & Status
Page – Each page contains 512 bytes of user data and a 16-byte extra area that is used to store flash
management and EDC/ECC signature data, as shown in Figure 9. A page is the minimal unit for read/write
operations.
Block – Each block contains 32 pages (total of 16KB), as shown in Figure 10. A block is the minimal unit
that can be erased, and is sometimes referred to as an erase block.
512 Bytes
Figure 10: Block Structure
Figure 9: Page Structure
512 Bytes
Data Sheet, Rev. 1.7
User Data
16 Bytes
Flash Management &
ECC/EDC Signature
16 Bytes
DiskOnChip Millennium Plus 16/32/64MByte
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