
48
Am29BDD160G
June 7, 2006
Legend:
DYB = Dyn
a
m
i
c Protect
i
on B
i
t
OW = Addre
ss
(A5–A0)
is
(011X10)
.
PD3
:
0 = Fo
u
r 32-
bi
t
qua
nt
i
t
i
e
s
repre
s
ent
i
ng the p
ass
word
.
PPB = Per
sis
tent Protect
i
on B
i
t
PWA = P
ass
word Addre
ss.
A0
:
A-1
s
elect
s
b
etween the low
a
nd h
i
gh
16-
bi
t port
i
on
s
of the 64-
bi
t P
ass
word
PWD = P
ass
word D
a
t
a.
M
us
t
b
e wr
i
tten over fo
u
r cycle
s.
PL = P
ass
word Protect
i
on Mode Lock Addre
ss
(A5-A0)
is
(001X10)
RD(0) = Re
a
d D
a
t
a
DQ0 protect
i
on
i
nd
i
c
a
tor
bi
t
.
If protected, DQ0 =
1,
i
f
u
nprotected, DQ0 = 0
.
RD(1) = Re
a
d D
a
t
a
DQ1 protect
i
on
i
nd
i
c
a
tor
bi
t
.
If protected, DQ1 =
1,
i
f
u
nprotected, DQ1 = 0
.
SA = Sector Addre
ss
where
s
ec
u
r
i
ty comm
a
nd
a
ppl
i
e
s.
Addre
ss
bi
t
s
A18
:
A11
u
n
iqu
ely
s
elect
a
ny
s
ector
.
SL = Per
sis
tent Protect
i
on Mode Lock Addre
ss
(A5–A0)
is
(010X10)
WP = PPB Addre
ss
(A5–A0)
is
(111X10)
X = Don’t c
a
re
PPMLB = P
ass
word Protect
i
on Mode Lock
i
ng B
i
t
SPMLB = Per
sis
tent Protect
i
on Mode Lock
i
ng B
i
t
1
.
2
.
3
.
See T
ab
le 1 for de
s
cr
i
pt
i
on of
bus
oper
a
t
i
on
s.
All v
a
l
u
e
s
a
re
i
n hex
a
dec
i
m
a
l
.
Sh
a
ded cell
s
i
n t
ab
le denote re
a
d cycle
s.
All other cycle
s
a
re
wr
i
te oper
a
t
i
on
s.
D
u
r
i
ng
u
nlock cycle
s
, (lower
a
ddre
ss
bi
t
s
a
re AAA or 555h
as
s
hown
i
n t
ab
le)
a
ddre
ss
bi
t
s
h
i
gher th
a
n A11 (except where BA
is
re
qui
red)
a
nd d
a
t
a
bi
t
s
h
i
gher th
a
n DQ7
a
re don’t c
a
re
s.
The re
s
et comm
a
nd ret
u
rn
s
the dev
i
ce to re
a
d
i
ng the
a
rr
a
y
.
The fo
u
rth cycle progr
a
m
s
the
a
ddre
ss
ed lock
i
ng
bi
t
.
The f
i
fth
a
nd
si
xth cycle
s
a
re
us
ed to v
a
l
i
d
a
te whether the
bi
t h
as
b
een f
u
lly
progr
a
mmed
.
If DQ0 (
i
n the
si
xth cycle) re
a
d
s
0, the progr
a
m
comm
a
nd m
us
t
b
e
issu
ed
a
nd ver
i
f
i
ed
a
g
ai
n
.
D
a
t
a
is
l
a
tched on the r
isi
ng edge of WE#
.
4
.
5
.
6
.
7
.
8
.
The ent
i
re fo
u
r
bus
-cycle
s
e
qu
ence m
us
t
b
e entered for e
a
ch
port
i
on of the p
ass
word
.
PWA[0–3] repre
s
ent the fo
u
r
a
ddre
ss
e
s
over wh
i
ch the p
ass
word
is
s
tored
.
PWD[0–3] repre
s
ent the fo
u
r
word d
a
t
a
th
a
t compr
is
e the p
ass
word
.
The fo
u
rth cycle er
as
e
s
a
ll PPB
s.
The f
i
fth
a
nd
si
xth cycle
s
a
re
us
ed to v
a
l
i
d
a
te whether the
bi
t
s
h
a
ve
b
een f
u
lly er
as
ed
.
If DQ0
(
i
n the
si
xth cycle) re
a
d
s
1, the er
as
e comm
a
nd m
us
t
b
e
issu
ed
a
nd ver
i
f
i
ed
a
g
ai
n
.
10
.
Before
issui
ng the er
as
e comm
a
nd,
a
ll PPB
s
s
ho
u
ld
b
e
progr
a
mmed
i
n order to prevent over-er
asu
re of PPB
s.
11
.
In the fo
u
rth cycle, 00h
i
nd
i
c
a
te
s
PPB
s
et; 01h
i
nd
i
c
a
te
s
PPB not
s
et
.
12
.
The
s
t
a
t
us
of
a
dd
i
t
i
on
a
l PPB
s
a
nd DYB
s
m
a
y
b
e re
a
d (follow
i
ng
the fo
u
rth cycle) w
i
tho
u
t re
issui
ng the ent
i
re comm
a
nd
s
e
qu
ence
.
9
.
Table 22
.
S
ector Protect
i
on Command Def
i
n
i
t
i
on
s
(x16 Mode)
Command (Note
s
)
C
s
Bu
s
Cycle
s
(Note
s
1-4)
F
i
r
s
t
S
econd
Th
i
rd
Fourth
F
i
fth
Si
xth
Addr Data Addr Data
XXX
F0
AAA
AA
AAA
AA
Addr
Data
Addr
Data
Addr
Data
Addr
Data
Re
s
et
S
ec
Si
S
ector Entry
S
ec
Si
S
ector Ex
i
t
S
ec
Si
Protect
i
on B
i
t Progr
a
m
(5, 6)
S
ec
Si
Protect
i
on B
i
t
S
t
a
t
us
P
ass
word Progr
a
m (5, 7,
8
)
P
ass
word Ver
i
fy
P
ass
word Unlock (7,
8
)
PPB Progr
a
m (5, 6)
All PPB Er
as
e (5,
9
, 10)
PPB
S
t
a
t
us
(11, 12)
PPB Lock B
i
t
S
et
PPB Lock B
i
t
S
t
a
t
us
DYB Wr
i
te (7)
DYB Er
as
e (7)
DYB
S
t
a
t
us
(12)
PPMLB Progr
a
m (5, 6)
PPMLB
S
t
a
t
us
(5)
S
PMLB Progr
a
m (5, 6)
S
PMLB
S
t
a
t
us
(5)
1
3
4
555
555
55
55
AAA
AAA
88
9
0
XX
00
6
AAA
AA
555
55
AAA
60
OW
6
8
OW
4
8
OW
RD(0)
6
5
4
5
6
6
4
3
4
4
4
4
6
6
6
6
AAA
AAA
AAA
AAA
AAA
AAA
AAA
AAA
AAA
AAA
AAA
AAA
AAA
AAA
AAA
AAA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
555
555
555
555
555
555
555
555
555
555
555
555
555
555
555
555
55
55
55
55
55
55
55
55
55
55
55
55
55
55
55
55
AAA
AAA
AAA
AAA
AAA
AAA
AAA
AAA
60
38
C
8
2
8
60
60
9
0
7
8
5
8
4
8
4
8
5
8
60
60
60
60
OW
RD(0)
PWA[0–
3
] PWD[0–
3
]
PWA[0–
3
] PWD[0–
3
]
PWA[0–
3
] PWD[0–
3
]
(
S
A)WP
WP
(
S
A)X04
6
8
60
(
S
A)WP
(
S
A)WP
4
8
40
(
S
A)WP RD(0)
(
S
A)WP RD(0)
00/01
(BA) AAA
AAA
AAA
(BA) AAA
AAA
AAA
AAA
AAA
S
A
S
A
S
A
S
A
PL
PL
S
L
S
L
RD(1)
X1
X0
RD(0)
6
8
RD(0)
6
8
RD(0)
PL
4
8
PL
RD(0)
S
L
4
8
S
L
RD(0)