HY29DL163 Hynix Semiconductor, HY29DL163 Datasheet - Page 9

• Manufacturer Part Number: HY29DL163
• Description: (HY29DL162 / HY29DL163) Simultaneous Read/Write Flash Memory
• Manufacturer: Hynix Semiconductor

Table 3. HY29DL16x Bank Options
Table 4. HY29DL16x Secure Sector Addressing
Sec
If the security feature is not required, the Sec
be treated as an additional Flash memory space
of 64 Kbytes. The Sec
and erased as often as required. The Sec
can be protected using the following procedure:
n
n
BUS OPERATIONS
Device bus operations are initiated through the
internal command register, which consists of sets
of latches that store the commands, along with
the address and data information, if any, needed
to execute the specific command. The command
register itself does not occupy any addressable
memory location. The contents of the command
register serve as inputs to an internal state ma-
chine whose outputs control the operation of the
device. Table 5 lists the normal bus operations,
the inputs and control levels they require, and the
resulting outputs. Certain bus operations require
r1.3/June 01
Notes:
1. ‘X’ indicates don’t care.
2. ‘0xN. . . N’ indicates an address in hexadecimal notation.
3. The address range in byte mode is A[19:0, -1]. The address range in word mode is A[19:0].
H
H
H
H
Y
Y
Y
Y
H
H
Write the three-cycle Enter Secure Sector Re-
gion command sequence
Then follow the sector protect algorithm shown
in Figure 1, except that RESET# may be at
either V
tion of the Secure Sector without raising any
2
Y
2
2
2
2
Y
D
NOT Programmed or Protected at the Factory
9
9
9
9
2
2
e
D
D
D
D
9
9
v
D
D
L
L
L
L
c i
D
1
1
1
1
L
L
e
e
6
6
6
6
1
1
v
2
3
2
3
IH
6
6
c i
T
T
B
B
2
2
or V
e
T
B
1 /
1 /
R
6
6
e
T
T
T
T
ID
3
3
e f
a
a
a
a
. This allows in-system protec-
T
B
b
b
b
b
e r
e l
e l
e l
e l
2
n
2
2
1
1
can be read, programmed,
c
e
S
e
K
S
t c
6
6
B
z i
4
4
r o
K /
3 /
3 /
e
S
W
2
2
(
2
4
2
4
M
z i
b
e
) t i
S
S
S
S
S
S
2
2
1
0
0
0
e
e
8
4
B
c
1
0
t c
-
-
A
-
-
2
o t
a
S
S
0
1
r o
1 [
2
S
S
n
area
s r
1
1
can
1
0
3
3
k
9
0
4
8
8
A
1 :
1
0
1
d
] 2
X
X
d
B
A
A
A
A
e r
X
X
1 [
1
a
1 [
1 [
1 [
n
s
n
Sec
once protected, there is no procedure available
for unprotecting the Sec
bits in the Sec
any way.
a high voltage on one or more device pins. Those
are described in Table 6.
Read Operation
Data is read from the HY29DL16x by using stan-
dard microprocessor read cycles while placing the
byte or word address on the device’s address in-
puts. The host system must drive the CE# and
OE# pins Low and drive WE# High for a valid read
operation to take place. The BYTE# pin deter-
mines whether the device outputs array data in
words (DQ[15:0]) or in bytes (DQ[7:0]).
9
X
X
9
9
s
k
9
1 :
1 :
1 :
1 :
A
] 7
] 7
device pin to a high voltage. Note that this
method is only applicable to the Secure Sec-
tor.
Once the Secure Sector is locked and verified,
the system must write the Exit Secure Sector
command sequence to return to reading and
writing the remainder of the array.
] 8
] 8
2
d
d
protection must be used with caution since,
=
=
0
0
=
=
e r
1 x
0 x
A
0
1
0
1
s
0
1
d
F
0
0
1
s
1
0
d
0
0
B
e r
0
0
y
S
0
0
s
e t
0
0
z i
s
2
e
-
-
memory space can be modified in
M
1
1
1
1
R
0
0
(
4
2
4
2
a
o
M
1 x
0 x
n
d
) b
g
F
0
e
e
F
F
HY29DL162/HY29DL163
F
F
, 2
F
F
3
S
S
S
S
S
F
F
1
1
2
0
0
e
1
5
area and none of the
B
c
-
-
-
-
o t
a
S
S
0
0
S
S
A
n
2
2
s r
x
0 x
k
3
3
d
F
7
3
8
8
d
W
8
0
2
e r
0
0
o
0
0
B
A
A
s
A
d r
A
0
0
s
a
1 [
1 [
1 [
1 [
n
-
-
R
9
9
M
9
k
9
0
0
1 :
1 :
a
1 :
1 :
x
o
0 x
A
n
] 7
F
] 7
d
] 8
] 8
d
g
F
7
e
d
e
F
≤
F
≥
≤ 0
≥ 1
e r
F
, 2
F
1
0
1
F
0
F
3
1
s
0
0
s
1
9