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S29GL-P MirrorBit Flash Family
S29GL-P_00_A12 November 20, 2009
Da ta
Sh e e t
Table 12.2 S29GL-P Sector Protection Command Definitions, x16
Command (Notes)
Cyc
le
s
First/Seventh
Second
Third
Fourth
Fifth
Sixth
Addr
Data
Addr
Data
Addr
Data
Addr
Data
Addr
Data
Addr
Data
Loc
k
Regist
er
Command Set Entry
3
555
AA
2AA
55
555
40
2
XXX
A0
XXX
DATA
100
RD
2
XXX
90
XXX
00
Pa
s
w
o
rd
P
rot
ecti
on
Command Set Entry
3
555
AA
2AA
55
555
60
2
XXX
A0
PWA x
PWD x
4
00
PWD0
01
PWD 1
02
PWD 2
03
PWD 3
7
00
25
00
03
00
PWD 0
01
PWD 1
02
PWD 2
03
PWD 3
00
29
2
XXX
90
XXX
00
Gl
obal
No
n-V
o
latile
PPB Command Set Entry
3
555
AA
2AA
55
555
C0
XXX
A0
SA
00
2
XXX
80
00
30
1
SA
RD (0)
PPB Command Set Exit
(7,
8)2
XXX
90
XXX
00
G
loba
l
V
o
latile
F
re
e
z
e
PPB Lock Command Set Entry
3
555
AA
2AA
55
555
50
2
XXX
A0
XXX
00
PPB Lock Status Read
(12)1
XXX
RD (0)
PPB Lock Command Set Exit
(7, 8)2
XXX
90
XXX
00
V
o
la
tile
DYB Command Set Entry
3
555
AA
2AA
55
555
E0
XXX
A0
SA
00
2
XXX
A0
SA
01
1
SA
RD (0)
DYB Command Set Exit (
7, 8)
2
XXX
90
XXX
00
Legend
X = Don’t care
RD(0) = Read data.
SA = Sector Address. Address bits Amax–A16 uniquely select any sector.
PWD = Password
PWDx = Password word0, word1, word2, and word3.
Data = Lock Register Contents: PD(0) = Secured Silicon Sector Protection Bit,
PD(1) = Persistent Protection Mode Lock Bit, PD(2) = Password Protection
Mode Lock Bit.
Notes
2. All values are in hexadecimal.
3. All bus cycles are write cycles unless otherwise noted.
4. Data bits DQ15-DQ8 are don’t cares for unlock and command cycles.
5. Address bits AMAX:A16 are don’t cares for unlock and command cycles,
unless SA or PA required. (AMAX is the Highest Address pin.)
6. All Lock Register bits are one-time programmable. Program state = “0” and
the erase state = “1.” The Persistent Protection Mode Lock Bit and the
Password Protection Mode Lock Bit cannot be programmed at the same
time or the Lock Register Bits Program operation aborts and returns the
device to read mode. Lock Register bits that are reserved for future use
default to “1’s.” The Lock Register is shipped out as “FFFF’s” before Lock
Register Bit program execution.
7. The Exit command returns the device to reading the array.
8. If any Command Set Entry command was written, an Exit command must
be issued to reset the device into read mode.
9. For PWDx, only one portion of the password can be programmed per each
“A0” command.
10. Note that the password portion can be entered or read in any order as long
as the entire 64-bit password is entered or read.
11. If ACC = VHH, sector protection matches when ACC = VIH.
12. Protected State = “00h,” Unprotected State = “01h.”
13. The All PPB Erase command embeds programming of all PPB bits before
erasure.