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參數(shù)資料
| 型號： | LV320MH |
| 廠商： | Spansion Inc. |
| 英文描述： | 32 Megabit (4 M x 8-Bit) MirrorBit⑩ 3.0 Volt-only Uniform Sector Flash Memory with VersatileI/O⑩ Control |
| 中文描述： | 32兆位（4個M × 8位）的MirrorBit⑩3.0伏特，只有統(tǒng)一部門閃存記憶體與VersatileI /輸出⑩控制 |
| 文件頁數(shù)： | 17/61頁 |
| 文件大?。?/td> | 772K |
| 代理商： | LV320MH |
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September 12, 2006
Am29LV033MU
15
D A T A S H E E T
Autoselect Mode
The autoselect mode provides manufacturer and de-
vice identification, and sector protection verification,
through identifier codes output on DQ7–DQ0. This
mode is primarily intended for programming equip-
ment to automatically match a device to be pro-
grammed 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 3.
In addition, when verifying sector protection, the sector
address must appear on the appropriate highest order
address bits (see Table 2). Table 3 shows the remain-
ing address bits that are don’t care. When all neces-
sary bits have been 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. This method
does not require V
ID
. Refer to the
Autoselect Com-
mand Sequence
section for more information.
Table 3.
Autoselect Codes, (High Voltage Method)
Legend:
L = Logic Low = V
IL
, H = Logic High = V
IH
, SA = Sector Address, X = Don’t care.
Description
CE#
OE#
WE#
A21
to
A15
A14
to
A10
A9
A8
to
A7
A6
A5
to
A4
A3
to
A2
A1
A0
DQ7 to DQ0
Manufacturer ID
:
AMD
L
L
H
X
X
V
ID
X
L
X
L
L
L
01h
D
Cycle 1
L
L
H
X
X
V
ID
X
L
X
L
L
H
7Eh
Cycle 2
H
H
L
1Ch
Cycle 3
H
H
H
00h
Sector Protection
Verification
L
L
H
SA
X
V
ID
X
L
X
L
H
L
01h (protected),
00h (unprotected)
SecSi
Sector Indicator Bit
(DQ7)
L
L
H
X
X
V
ID
X
L
X
L
H
H
90h (factory locked),
10h (not factory locked)
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| LV320ML | 制造商:SPANSION 制造商全稱:SPANSION 功能描述:32 Megabit (4 M x 8-Bit) MirrorBit⑩ 3.0 Volt-only Uniform Sector Flash Memory with VersatileI/O⑩ Control |
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