GD25D10BxIGx Uniform sector dual and quad serial flash
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Software Protection Mode: The Block Protect (BP2, BP1, BP0) bits define the section of the protected
memory area which is read-only and unalterable.
♦
Hardware Protection Mode: WP# going low to protected the BP0~BP2 bits and SRP bits.
♦
♦
Deep Power-Down Mode: In Deep Power-Down Mode, all commands are ignored except the Release from
Deep Power-Down Mode command.
Write Inhibit Voltage (VWI): Device would reset automatically when VCC is below a certain threshold VWI.
♦
Table 1. GD25D10B Protected area size
Status Register Content
Memory Content
Addresses
BP2
0
BP1
0
BP0
0
Blocks
NONE
Density
NONE
120KB
112KB
96KB
64KB
128KB
128KB
Portion
NONE
Lower 30/32
Lower 28/32
Lower 24/32
Lower 16/32
All
NONE
0
0
0
1
1
1
0
1
1
0
0
1
1
0
1
0
1
×
Sector 0 to 29
Sector 0 to 27
Sector 0 to 23
Sector 0 to 15
All
000000H-01DFFFH
000000H-01BFFFH
000000H-017FFFH
000000H-00FFFFH
000000H-01FFFFH
000000H-01FFFFH
All
All
6. STATUS REGISTER
S7
S6
S5
Reserved
S4
S3
S2
S1
WEL
S0
SRP
Reserved
BP2
BP1
BP0
WIP
The status and control bits of the Status Register are as follows:
WIP bit.
The Write In Progress (WIP) bit indicates whether the memory is busy in program/erase/write status register
progress. When WIP bit is set to 1, it means the device is busy in program/erase/write status register progress.
When WIP bit is cleared to 0, it means the device is not in program/erase/write status register progress. The
default value of WIP is 0.
WEL bit.
The Write Enable Latch (WEL) bit indicates the status of the internal Write Enable Latch. When set to 1 the
internal Write Enable Latch is set, when set to 0 the internal Write Enable Latch is reset and no write Status
Register, Program or Erase command is accepted. The default value of WEL is 0.
BP2, BP1, BP0 bits.
The Block Protect (BP2, BP1, BP0) bits are non-volatile. They define the size of the area to be software
protected against Program and Erase commands. These bits are written with the Write Statue Register (WRSR)
command. When the Block Protect (BP2, BP1, BP0) bits are set to 1, the relevant memory area (as defined in
Table1). Becomes protected against Page Program (PP), Sector Erase (SE) and Block Erase (BE) commands.
Rev.1.0
28 - 7
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