W25X10AL, W25X20AL, W25X40AL, W25X80AL
10.1.7 Status Register Memory Protection
STATUS REGISTER(1)
TB BP2 BP1 BP0
x0
0
0
00
0
1
00
1
0
00
1
1
01
0
0
10
0
1
10
1
0
10
1
1
11
0
0
x1
0
1
x1
1
x
W25X80AL (8M-BIT) MEMORY PROTECTION
BLOCK(S)
ADDRESSES
DENSITY
NONE
NONE
NONE
15
0F0000h - 0FFFFFh
64KB
14 and 15 0E0000h - 0FFFFFh
128KB
12 thru 15 0C0000h - 0FFFFFh
256KB
8 thru 15 080000h - 0FFFFFh
512KB
0
000000h - 00FFFFh
64KB
0 and 1 000000h - 01FFFFh
128KB
0 thru 3 000000h - 03FFFFh
256KB
0 thru 7 000000h - 07FFFFh
512KB
0 thru 15 000000h - 0FFFFFh
1MB
0 thru 15 000000h - 0FFFFFh
1MB
PORTION
NONE
Upper 1/16
Upper 1/8
Upper 1/4
Upper 1/2
Lower 1/16
Lower 1/8
Lower 1/4
Lower 1/2
ALL
ALL
STATUS REGISTER(1)
TB BP2 BP1 BP0
x0
0
0
00
0
1
00
1
0
00
1
1
10
0
1
10
1
0
10
1
1
x1
x
x
W25X40AL (4M-BIT) MEMORY PROTECTION
BLOCK(S)
ADDRESSES
DENSITY
PORTION
NONE
NONE
NONE
NONE
7
070000h - 07FFFFh
64KB
Upper 1/8
6 and 7 060000h - 07FFFFh
128KB
Upper 1/4
4 thru 7 040000h - 07FFFFh
256KB
Upper 1/2
0
000000h - 00FFFFh
64KB
Lower 1/8
0 and 1 000000h - 01FFFFh
128KB
Lower 1/4
0 thru 3 000000h - 03FFFFh
256KB
Lower 1/2
0 thru 7 000000h - 07FFFFh
512KB
ALL
STATUS REGISTER(1)
TB BP2 BP1 BP0
xx
0
0
0x
0
1
0x
1
0
1x
0
1
1x
1
0
xx
1
1
W25X20AL (2M-BIT) MEMORY PROTECTION
BLOCK(S)
NONE
ADDRESSES
NONE
DENSITY
NONE
PORTION
NONE
3
030000h - 03FFFFh
64KB
Upper 1/4
2 and 3 020000h - 03FFFFh
128KB
Upper 1/2
0
000000h - 00FFFFh
64KB
Lower 1/4
0 and 1 000000h - 01FFFFh
128KB
Lower 1/2
0 thru 3 000000h - 03FFFFh
256KB
ALL
STATUS REGISTER(1)
TB BP2 BP1 BP0
xx
0
0
0x
0
1
1x
0
1
xx
1
x
Note:
1. x = don’t care
W25X10AL (1M-BIT) MEMORY PROTECTION
BLOCK(S)
NONE
1
0
0 and 1
ADDRESSES
NONE
010000h - 01FFFFh
000000h - 00FFFFh
000000h - 01FFFFh
DENSITY
NONE
64KB
64KB
128KB
PORTION
NONE
Upper 1/2
Lower 1/2
ALL
- 13 -
Publication Release Date: May 9, 2008
Revision B