ESMT
F25L008A
47
4KB
:
02F000H – 02FFFFH
2
1
0
0
0
0
0
0
0
1
0
0
0
1
0
:
:
32
31
:
4KB
4KB
:
020000H – 020FFFH
01F000H – 01FFFFH
:
16
15
:
4KB
4KB
:
010000H – 010FFFH
00F000H – 00FFFFH
:
0
4KB
000000H – 000FFFH
Table2 : F25L008A Block Protection Table
TOP
Protection Level
Status Register Bit
Protected Memory Area
Block Range Address Range
BP2
0
BP1
0
BP0
0
0
None
None
Upper 1/16
Upper 1/8
Upper 1/4
Upper 1/2
All Blocks
All Blocks
All Blocks
0
0
1
Block 15
F0000H – FFFFFH
E0000H – FFFFFH
C0000H – FFFFFH
80000H – FFFFFH
00000H – FFFFFH
00000H – FFFFFH
00000H – FFFFFH
0
1
0
Block 14~15
Block 12~15
Block 8~15
Block 0~15
Block 0~15
Block 0~15
0
1
1
1
0
0
1
0
1
1
1
0
1
1
1
BOTTOM
Protection Level
Status Register Bit
Protected Memory Area
BP2
BP1
0
BP0
Block Range
None
Address Range
None
0
0
0
0
0
1
1
1
1
0
1
0
1
0
1
0
1
Bottom 1/16
Bottom 1/8
Bottom 1/4
Bottom 1/2
All Blocks
All Blocks
All Blocks
0
Block 0
00000H – 0FFFFH
00000H – 1FFFFH
00000H – 3FFFFH
00000H – 7FFFFH
00000H – FFFFFH
00000H – FFFFFH
00000H – FFFFFH
1
Block 0~1
Block 0~3
Block 0~7
Block 0~15
Block 0~15
Block 0~15
1
0
0
1
1
Block Protection (BP2, BP1, BP0)
Block Protection Lock-Down (BPL)
The Block-Protection (BP2, BP1, BP0) bits define the size of the
memory area, as defined in Table2 to be software protected
against any memory Write (Program or Erase) operations. The
Write-Status-Register (WRSR) instruction is used to program the
WP pin driven low (VIL), enables the Block-Protection
-Lock-Down (BPL) bit. When BPL is set to 1, it prevents any
further alteration of the BPL, BP2, BP1, and BP0 bits. When the
WP pin is driven high (VIH), the BPL bit has no effect and its
value is “Don’t Care”. After power-up, the BPL bit is reset to 0.
BP2, P1, BP0 bits as long as WP is high or the
Block-Protection-Look (BPL) bit is 0. Chip-Erase can only be
executed if Block-Protection bits are all 0. After power-up, BP2,
BP1 and BP0 are set to1.
Elite Semiconductor Memory Technology Inc.
Publication Date: May. 2007
Revision: 1.4 5/31
ESMT [ ELITE SEMICONDUCTOR MEMORY TECHNOLOGY INC. ]
