參數(shù)資料
型號(hào)： ML54051
廠商： LAPIS SEMICONDUCTOR CO LTD
元件分類： 存儲(chǔ)控制器/管理單元
英文描述： FLASH MEMORY DRIVE CONTROLLER, PQFP120
封裝： 14 X 14 MM, 0.40 MM PITCH, PLASTIC, TQFP-120
文件頁(yè)數(shù)： 7/37頁(yè)
文件大?。?/td> 304K
代理商： ML54051
Semiconductor
ML54051
11/33
5.1.3
Substitute Management Information Format
The location of management information itself specifies a substitute destination. And an original
sector locations is identified by a column number and a block address to be stored in a
management information. Please note that a substitute management information cannot be
transfered to other chips.
The following values have unique meanings.
666666[h]
D-List
(orig.)
Page 1
Header
ECC
Page m-1
Identify Information [512 bytes]
Page m
CIS Information [256 bytes]
Unused [248 bytes]
3 bytes
512 bytes
666666[h]
D-List
(duplicate)
3 bytes
Management
Info. n-2
Port A Chip 1
3 bytes
Management
Info. 1
Port A Chip 1
Management Info.
Management
Info. n
Port A Chip 3
Management
Info. 1
Port A Chip 3
Unused
2 bytes
D-List
Identify Info.
3 bytes
Unique Info.
3 bytes
ECC
10 bytes
Header
Unused
D-List
Identify Info.
Unique Info.
ECC
Header
Unused
D-List
Identify Info.
Unique Info.
ECC
Header
6 bytes
Management Information (3 bytes)
Stores substitute origin information
Blank
Column No.
Address of an original block to be substituted
Column No. : 0 to 31
7 bits
5 bits
12 bits
D-List Identify Information (3 bytes)
Indicates that the sector is valid (fixed values: 4Fh, 4Bh, 49h)
Unique Information (3 bytes)
During the low level format, stores total number of chips, chip number, and individual
memory type information
Total No. of chips: The number of chips connected to the ML54051 (1 to 64)
Chip No. : The chip number that contains the substitute management information (0 or 1)
Individual memory type info. : Number of blocks per chip (4 bits) and number of pages per
block (4 bits)
Total No. of Chips
1 byte
Chip No.
1 byte
Individual Memory Type Info.
1 byte
55 55 55 [h]
Reconstructed D-List Block Registered Position
66 66 66 [h]
Spare Block for D-List Use
0F 0F 0F [h]
Error Occurred D-List Block/Unusable Spare Block
FF FF FF [h]
Usable/Unused Spare Block
Memory Capacity
Number of Blocks Per Chip
Number of Pages Per Block
64 Mbit
1[h] (1024 Block)
0[h] (16 Page)
128 Mbit
256 Mbit
2[h] (2048 Block)
1[h] (32 Page)
512 Mbit
4[h] (4096 Block)
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