EN25Q16B Datasheet, PDF (11/62 Pages) Eon Silicon Solution Inc. – 16 Megabit Serial Flash Memory with 4Kbyte Uniform Sector

Table 3. Protected Area Sizes Sector Organization
EN25Q16B
Status Register Content
BP3 BP2 BP1 BP0
Bit Bit Bit Bit
Protect Areas
0
0
0
0
None
0
0
0
1
Block 0 to 30
0
0
1
0
Block 0 to 29
0
0
1
1
Block 0 to 27
0
1
0
0
Block 0 to 23
0
1
0
1
Block 0 to 15
0
1
1
0
All
0
1
1
1
All
1
0
0
0
None
1
0
0
1
Block 31 to 1
1
0
1
0
Block 31 to 2
1
0
1
1
Block 31 to 4
1
1
0
0
Block 31 to 8
1
1
0
1
Block 31 to 16
1
1
1
0
All
1
1
1
1
All
Memory Content
Addresses
Density(KB) Portion
None
000000h-1EFFFFh
000000h-1DFFFFh
000000h-1BFFFFh
000000h-17FFFFh
000000h-0FFFFFh
000000h-1FFFFFh
000000h-1FFFFFh
None
1FFFFFh-010000h
1FFFFFh-020000h
1FFFFFh-040000h
1FFFFFh-080000h
1FFFFFh-100000h
1FFFFFh-000000h
1FFFFFh-000000h
None
1984KB
1920KB
1792KB
1536KB
1024KB
2048KB
2048KB
None
1984KB
1920KB
1792KB
1536KB
1024KB
2048KB
2048KB
None
Lower 31/32
Lower 30/32
Lower 28/32
Lower 24/32
Lower 16/32
All
All
None
Upper 31/32
Upper 30/32
Upper 28/32
Upper 24/32
Upper 16/32
All
All
Enable Boot Lock
The Enable Boot Lock feature enables user to lock the 64KB block/sector on the top/bottom of the
device for protection. This feature is activated by issue Writing Status Register (05h) after entering OTP
mode.
The bits’ definitions are described in the following table.
Table 4. The Enable Boot Lock feature
Register
S3
S4
S6
Type
OTP
OTP
OTP
Description
Enable 64KB-block/Sector Boot lock
64KB-Block/Sector switch
Top/Bottom switch
Function
0 (default)
1 : Permanent lock selected
64KB-Block/Sector
0 : 64KB-Block (default)
1 : Sector
0 : Top (default)
1 : Bottom
This Data Sheet may be revised by subsequent versions
11
or modifications due to changes in technical specifications.
©2014 Eon Silicon Solution, Inc.,
Rev. A, Issue Date: 2014/03/14
www.eonssi.com