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參數(shù)資料
| 型號(hào)： | S29GL064N90BFIV22 |
| 廠商： | Spansion Inc. |
| 英文描述： | 64 Megabit, 32 Megabit 3.0-Volt only Page Mode Flash Memory Featuring 110 nm MirrorBit Process Technology |
| 中文描述： | 64兆，32兆位3.0伏只頁面模式閃存具有110納米MirrorBit工藝技術(shù) |
| 文件頁數(shù)： | 29/79頁 |
| 文件大?。?/td> | 2191K |
| 代理商： | S29GL064N90BFIV22 |
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November 16, 2007 S29GL-N_01_09
S29GL-N MirrorBit
Flash Family
29
D a t a
S h e e t
8.8
Autoselect Mode
The autoselect mode provides manufacturer and device identification, and sector protection verification,
through identifier codes output on DQ7–DQ0. This mode is primarily intended for programming equipment to
automatically match a device to be programmed with its corresponding programming algorithm. However, the
autoselect codes can also be accessed in-system through the command register.
When using programming equipment, the autoselect mode requires V
ID
on address pin A9. Address pins A6,
A3, A2, A1, and A0 must be as shown in
Table 8.9 on page 29
. In addition, when verifying sector protection,
the sector address must appear on the appropriate highest order address bits (see
Table 8.2
-
Table 8.8
).
Table 8.9
shows the remaining address bits that are don’t care. When all necessary bits are set as required,
the programming equipment may then read the corresponding identifier code on DQ7–DQ0.
To access the autoselect codes in-system, the host system can issue the autoselect command via the
command register, as shown in
Table 10.1 on page 51
and
Table 10.3 on page 53
. This method does not
require V
ID
. Refer to the Autoselect Command Sequence section for more information.
Legend
L = Logic Low = V
IL
H = Logic High = V
IH
SA = Sector Address
X = Don’t care
Table 8.9
Autoselect Codes, (High Voltage Method)
Description
CE# OE#
WE#
A
to
A15
A14
to
A10
A9
A8
to
A7
A6
A5
to
A4
A3
to
A2
A1
A0
DQ8 to DQ15
DQ7 to DQ0
Model Number
BYTE#
= V
IH
BYTE#
= V
IL
01, 02
V1, V2
03, 04
06, 07,
V6, V7
Manufacturer ID
:
Spansion Products
L
L
H
X
X
V
ID
X
L
X
L
L
L
00
X
01h
01h
01h
S
Cycle 1
L
L
H
X
X
V
ID
X
L
X
L
L
H
22
X
7Eh
7Eh
7Eh
Cycle 2
H
H
L
22
X
0Ch
10h
13h
Cycle 3
H
H
H
22
X
01h
00h (04, bottom boot)
01h (03, top boot)
01h
S
Cycle 1
L
L
H
X
X
V
ID
X
L
X
L
L
H
22
X
7Eh
7Eh
Cycle 2
H
H
L
22
X
1Dh
1Ah
Cycle 3
H
H
H
22
X
00h
00h (04, bottom boot)
01h (03, top boot)
Sector Protection
Verification
L
L
H
SA
X
V
ID
X
L
X
L
H
L
X
X
01h (protected),
00h (unprotected)
Secured Silicon Sector
Indicator Bit (DQ7),
WP# protects highest
address sector
L
L
H
X
X
V
ID
X
L
X
L
H
H
X
X
For S29GL064N and S29GL032N:
9A (factory locked),
1A (not factory locked)
Secured Silicon Sector
Indicator Bit (DQ7),
WP# protects lowest
address sector
L
L
H
X
X
V
ID
X
L
X
L
H
H
X
X
For S29GL064N and S29GL032N:
8A (factory locked),
0A (not factory locked)
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