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參數資料
| 型號： | W28F641B |
| 廠商： | WINBOND ELECTRONICS CORP |
| 英文描述： | 64MBIT (4MBIT 】 16) PAGE MODE DUAL WORK FLASH MEMORY |
| 中文描述： | 64兆比特（的4Mb】16）頁模式的雙工作閃存 |
| 文件頁數： | 15/31頁 |
| 文件大小： | 389K |
| 代理商： | W28F641B |
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W28F641B/T
Publication Release Date: March 27, 2003
Table 12. Partition Configuration Register Definition
R
R
R
R
R
PC2
PC1
PC0
15
14
13
12
11
10
9
8
R
R
R
R
R
R
R
R
7
6
5
4
3
2
1
0
PCR.15
11 = RESERVED FOR FUTURE
ENHANCEMENTS (R)
PCR.10
8 = PARTITION CONFIGURATION (PC2-0)
000 = No partitioning. Dual Work is not allowed.
001 = Plane1-3 are merged into one partition.
(default in a bottom parameter device)
010 = Plane 0
1 and Plane2
3 are merged into one
partition respectively.
100 = Plane 0
2 are merged into one partition.
(default in a top parameter device)
011 = Plane 2
3 are merged into one partition.
There are three partitions in this configuration.
Dual work operation is available between any
two partitions.
110 = Plane 0
1 are merged into one partition.
There are three partitions in this configuration.
Dual work operation is available between any
two partitions.
101 = Plane 1
2 are merged into one partition.
There are three partitions in this configuration.
Dual work operation is available between any
two partitions.
111 = There are four partitions in this configuration.
Each plane corresponds to each partition respectively.
Dual work operation is available between any two
partitions.
PCR.7
0 = RESERVED FOR FUTURE
ENHANCEMENTS (R)
NOTES:
After power-up or device reset, PCR10
8 (PC2
0) is set
to "001" in a bottom parameter device and "100" in a top
parameter device.
See Figure 4 for the detail on partition configuration.
PCR.15
11 and PCR.7
0 are reserved for future use
and should be masked out when checking the partition
configuration register.
PC2 PC1 PC0
0
0
PARTITIONING FOR DUAL WORK
PC2 PC1 PC0
0
1
PARTITIONING FOR DUAL WORK
PARTITION0
P
PARTITION2
PARTITION1 PARTITION0
0
1
PARTITION1
P
PARTITION0
P
PARTITION2 PARTITION1
P
PARTITION0
P
0
0
1
1
1
0
PARTITION1
P
PARTITION0
P
PARTITION2
P
PARTITION1
P
PARTITION0
P
0
1
0
1
0
1
PARTITION1
P
PARTITION0
P
PARTITION3 PARTITION2 PARTITION1 PARTITION0
P
1
0
0
1
1
1
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
Figure 4. Partition Configuration
- 15 -
Revision A3
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