S25FL128S Datasheet, PDF (147/153 Pages) SPANSION – MirrorBit® Flash Non-Volatile Memory CMOS 3.0 Volt Core with Versatile I/O Serial Peripheral Interface with Multi-I/O

Data Sheet
Table 11.23 ASP Register (ASPR)
Bits
Field Name
Function
Type
Default
State
Description
15 to 9
RFU
Reserved
OTP
1
Reserved for Future Use
8
RFU
Reserved
OTP (Note 1) Reserved for Future Use
7
RFU
Reserved
OTP (Note 1) Reserved for Future Use
6
RFU
Reserved
OTP
1
Reserved for Future Use
5
RFU
Reserved
OTP (Note 1) Reserved for Future Use
4
RFU
Reserved
OTP (Note 1) Reserved for Future Use
3
RFU
Reserved
OTP (Note 1) Reserved for Future Use
2
PWDMLB
Password
Protection Mode
Lock Bit
OTP
1
0 = Password Protection Mode permanently enabled.
1 = Password Protection Mode not permanently enabled.
1
PSTMLB
Persistent
Protection Mode
Lock Bit
OTP
1
0 = Persistent Protection Mode permanently enabled.
1 = Persistent Protection Mode not permanently enabled.
0
RFU
Reserved
OTP
1
Reserved for Future Use
Note:
1. Default value depends on ordering part number, see Initial Delivery State on page 148.
Bits
Field
Name
63 to 0 PWD
Function
Hidden
Password
Table 11.24 Password Register (PASS)
Type
OTP
Default State
FFFFFFFF-
FFFFFFFFh
Description
Non-volatile OTP storage of 64 bit password. The password is
no longer readable after the password protection mode is
selected by programming ASP register bit 2 to zero.
Table 11.25 PPB Lock Register (PPBL)
Bits
7 to 1
0
Field Name
RFU
Function
Reserved
PPBLOCK Protect PPB Array
Type
Volatile
Volatile
Default State
Description
00h
Reserved for Future Use
0 = PPB array protected until next power cycle
Persistent Protection Mode = 1 or hardware reset
Password Protection Mode = 0 1 = PPB array may be programmed or erased
Bits
7 to 0
Table 11.26 PPB Access Register (PPBAR)
Field Name
Function
Type
PPB
Read or Program per
sector PPB
Non-volatile
Default
State
FFh
Description
00h = PPB for the sector addressed by the PPBRD or
PPBP command is programmed to “0”, protecting that
sector from program or erase operations.
FFh = PPB for the sector addressed by the PPBRD or
PPBP command is erased to “1”, not protecting that
sector from program or erase operations.
Table 11.27 DYB Access Register (DYBAR)
Bits
7 to 0
Field Name Function
DYB
Read or Write
per sector DYB
Type
Volatile
Default State
Description
00h = DYB for the sector addressed by the DYBRD or DYBP
command is cleared to “0”, protecting that sector from program or
erase operations.
FFh
FFh = DYB for the sector addressed by the DYBRD or DYBP
command is set to “1”, not protecting that sector from program or
erase operations.
July 12, 2012 S25FL128S_256S_00_05
S25FL128S and S25FL256S
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