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| 型號(hào)： | W28F321TB70L |
| 廠商： | WINBOND ELECTRONICS CORP |
| 元件分類： | PROM |
| 英文描述： | 2M X 16 FLASH 1.8V PROM, 70 ns, PBGA48 |
| 封裝： | 7 X 7 MM, 0.75 MM PITCH, TFBGA-48 |
| 文件頁(yè)數(shù)： | 6/28頁(yè) |
| 文件大?。?/td> | 372K |
| 代理商： | W28F321TB70L |
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W28F321BB/TB
- 14 -
Table 12. Partition Configuration Register Definition
R
PC2
PC1
PC0
15
14
13
12
11
10
9
8
R
7
6
5
4
3
2
1
0
PCR.150
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 polling the partition
configuration register.
PC2 PC1 PC0
PARTITIONING FOR DUAL WORK
PC2 PC1 PC0
PARTITIONING FOR DUAL WORK
PARTITION0
PARTITION2
PARTITION1 PARTITION0
0
1
PARTITION1
PARTITION0
PARTITION2 PARTITION1
PARTITION0
0
1
0
PARTITION1
PARTITION0
PARTITION2
PARTITION1
PARTITION0
0
1
0
1
0
1
PARTITION1
PARTITION0
PARTITION3 PARTITION2 PARTITION1 PARTITION0
1
0
1
Figure 4. Partition Configuration
PLANE3
PLANE2
PLANE1
PLANE0
PLANE3
PLANE2
PLANE1
PLANE0
PLANE3
PLANE2
PLANE1
PLANE0
PLANE3
PLANE2
PLANE1
PLANE0
PLANE3
PLANE2
PLANE1
PLANE0
PLANE3
PLANE2
PLANE1
PLANE0
PLANE3
PLANE2
PLANE1
PLANE0
PLANE3
PLANE2
PLANE1
PLANE0
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