EN25QH32A Datasheet, PDF (10/63 Pages) Eon Silicon Solution Inc. – 32 Megabit Serial Flash Memory with 4Kbyte Uniform Sector

Table 3. Protected Area Sizes Sector Organization
EN25QH32A
Status Register Content
BP3 BP2 BP1 BP0
Bit Bit Bit Bit
Protect Areas
0
0
0
0
None
0
0
0
1
Block 63
0
0
1
0
Block 62 to 63
0
0
1
1
Block 60 to 63
0
1
0
0
Block 56 to 63
0
1
0
1
Block 48 to 63
0
1
1
0
Block 32 to 63
0
1
1
1
All
1
0
0
0
None
1
0
0
1
Block 0
1
0
1
0
Block 0 to 1
1
0
1
1
Block 0 to 3
1
1
0
0
Block 0 to 7
1
1
0
1
Block 0 to 15
1
1
1
0
Block 0 to 31
1
1
1
1
All
Memory Content
Addresses
Density(KB) Portion
None
3F0000h-3FFFFFh
3E0000h-3FFFFFh
3C0000h-3FFFFFh
380000h-3FFFFFh
300000h-3FFFFFh
200000h-3FFFFFh
000000h-3FFFFFh
None
000000h-00FFFFh
000000h-01FFFFh
000000h-03FFFFh
000000h-07FFFFh
000000h-0FFFFFh
000000h-1FFFFFh
000000h-3FFFFFh
None
64KB
128KB
256KB
512KB
1024KB
2048KB
4096KB
None
64KB
128KB
256KB
512KB
1024KB
2048KB
4096KB
None
Upper 1/64
Upper 2/64
Upper 4/64
Upper 8/64
Upper 16/64
Upper 32/64
All
None
Lower 1/64
Lower 2/64
Lower 4/64
Lower 8/64
Lower 16/64
Lower 32/64
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
10
or modifications due to changes in technical specifications.
©2013 Eon Silicon Solution, Inc.,
Rev. A, Issue Date: 2013/11/25
www.eonssi.com