W25X10BV/20BV/40BV
9.1.7 Status Register Memory Protection
STATUS REGISTER(1)
W25X40BV (4M-BIT) MEMORY PROTECTION
TB BP2
BP1
0
0
1
1
0
1
1
x
BP0
0
1
0
1
1
0
1
x
BLOCK(S)
NONE
7
6 and 7
4 thru 7
0
0 and 1
0 thru 3
0 thru 7
ADDRESSES
NONE
DENSITY
NONE
64KB
128KB
256KB
64KB
128KB
256KB
512KB
PORTION
NONE
x
0
0
0
1
1
1
x
0
0
0
0
0
0
0
1
070000h - 07FFFFh
060000h - 07FFFFh
040000h - 07FFFFh
000000h - 00FFFFh
000000h - 01FFFFh
000000h - 03FFFFh
000000h - 07FFFFh
Upper 1/8
Upper 1/4
Upper 1/2
Lower 1/8
Lower 1/4
Lower 1/2
ALL
STATUS REGISTER(1)
W25X20BV (2M-BIT) MEMORY PROTECTION
TB BP2
BP1
0
0
1
0
BP0
0
1
0
1
BLOCK(S)
NONE
3
2 and 3
0
ADDRESSES
NONE
DENSITY
NONE
64KB
128KB
64KB
PORTION
NONE
x
0
0
1
1
x
x
x
x
x
x
x
030000h - 03FFFFh
020000h - 03FFFFh
000000h - 00FFFFh
000000h - 01FFFFh
000000h - 03FFFFh
Upper 1/4
Upper 1/2
Lower 1/4
Lower 1/2
ALL
1
1
0
1
0 and 1
0 thru 3
128KB
256KB
STATUS REGISTER(1)
W25X10BV (1M-BIT) MEMORY PROTECTION
TB BP2
BP1
0
0
0
1
BP0
0
1
1
x
BLOCK(S)
NONE
ADDRESSES
NONE
010000h - 01FFFFh
000000h - 00FFFFh
000000h - 01FFFFh
DENSITY
NONE
64KB
64KB
128KB
PORTION
NONE
Upper 1/2
Lower 1/2
ALL
x
0
1
x
x
x
x
x
1
0
0 and 1
Note:
1. x = don’t care
Publication Release Date: August 20, 2009
Preliminary -- Revision B
- 13 -
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