W25X16BV Datasheet, PDF (13/47 Pages) Winbond – 16M-BIT SERIAL FLASH MEMORY WITH 4KB SECTORS AND DUAL OUTPUT SPI

W25X16BV
11.1.6 Status Register Protect (SRP)
The Status Register Protect (SRP) bit is a non-volatile read/write bit in status register (S7) that can be
used in conjunction with the Write Protect (/WP) pin to disable writes to status register. When the SRP
bit is set to a 0 state (factory default) the /WP pin has no control over status register. When the SRP
pin is set to a 1, the Write Status Register instruction is locked out while the /WP pin is low. When the
/WP pin is high the Write Status Register instruction is allowed.
Figure 3. Status Register Bit Locations
11.1.7 Status Register Memory Protection
STATUS REGISTER⁽¹⁾
TB BP2 BP1 BP0
x
0
0
0
0
0
0
1
0
0
1
0
0
0
1
1
0
1
0
0
0
1
0
1
1
0
0
1
1
0
1
0
1
0
1
1
1
1
0
0
1
1
0
1
x
1
1
x
W25X16BV (16M-BIT) MEMORY PROTECTION
BLOCK(S)
NONE
31
30 and 31
28 thru 31
24 thru 31
ADDRESSES
NONE
1F0000h - 1FFFFFh
1E0000h - 1FFFFFh
1C0000h - 1FFFFFh
180000h - 1FFFFFh
DENSITY
NONE
64KB
128KB
256KB
512KB
16 thru 31
0
100000h - 1FFFFFh
000000h - 00FFFFh
1MB
64KB
0 and 1
0 thru 3
0 thru 7
0 thru 15
0 thru 31
000000h - 01FFFFh
000000h - 03FFFFh
000000h - 07FFFFh
000000h - 0FFFFFh
000000h - 1FFFFFh
128KB
256KB
512KB
1MB
2MB
PORTION
NONE
Upper 1/32
Upper 1/16
Upper 1/8
Upper 1/4
Upper 1/2
Lower 1/32
Lower 1/16
Lower 1/8
Lower 1/4
Lower 1/2
ALL
Note:
1. x = don’t care
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Publication Release Date: October 7, 2009
Preliminary -- Revision C