參數(shù)資料
型號： S29GL256N10FFI010
廠商： SPANSION LLC
元件分類： PROM
英文描述： MirrorBit Flash Family
中文描述： 16M X 16 FLASH 3V PROM, 100 ns, PBGA64
封裝： 13 X 11 MM, LEAD FREE, FBGA-64
文件頁數(shù)： 32/95頁
文件大小： 3781K
代理商： S29GL256N10FFI010
38
S29GL-N
S29GL-N_00_B8 May 30, 2008
Da ta
Sh e e t
7.9
Autoselect Mode
The autoselect mode provides manufacturer and device identification, and sector group 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 VID on address pin A9. Address pins A6,
A3, A2, A1, and A0 must be as shown in Table 7.5. In addition, when verifying sector protection, the sector
address must appear on the appropriate highest order address bits (see Table 7.2 on page 18). Table 7.5
on page 38 shows the remaining address bits that are don’t care. When all necessary 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 9.1 on page 60 and Table 9.3 on page 62. This method does not
require VID. Refer to the Autoselect Command Sequence on page 49 for more information.
Legend
L = Logic Low = VIL
H = Logic High = VIH
SA = Sector Address
X = Don’t care
7.10
Sector Protection
The device features several levels of sector protection, which can disable both the program and erase
operations in certain sectors or sector groups:
7.10.1
Persistent Sector Protection
A command sector protection method that replaces the old 12 V controlled protection method.
Table 7.5 Autoselect Codes (High Voltage Method)
Description
CE#
OE#
WE#
A22t
o
A15
A14
to
A10
A9
A8
to
A7
A6
A5
to
A4
A3
to
A2
A1
A0
DQ8 to DQ15
DQ7 to DQ0
BYTE#=
VIH
BYTE#
= VIL
Manufacturer ID:
Spansion Product
LL
H
X
VID
X
L
X
L
00
X
01h
De
v
ice
ID
S29
G
L51
2N
Cycle 1
LL
H
X
VID
XL
X
LL
H
22
X
7Eh
Cycle 2
H
L
22
X
23h
Cycle 3
H
22
X
01h
D
e
vi
ce
I
D
S29
G
L25
6N
Cycle 1
LL
H
X
VID
XL
X
LL
H
22
X
7Eh
Cycle 2
H
L
22
X
22h
Cycle 3
H
22
X
01h
D
e
vi
ce
I
D
S29
G
L12
8N
Cycle 1
LL
H
X
VID
XL
X
LL
H
22
X
7Eh
Cycle 2
H
L
22
X
21h
Cycle 3
H
22
X
01h
Sector Group Protection
Verification
LL
H
SA
X
VID
XL
X
L
H
L
X
01h (protected),
00h (unprotected)
Secured Silicon Sector
Indicator Bit (DQ7), WP#
protects highest address
sector
LL
H
X
VID
XL
X
L
H
X
98h (factory locked),
18h (not factory locked)
Secured Silicon Sector
Indicator Bit (DQ7), WP#
protects lowest address
sector
LL
H
X
VID
XL
X
L
H
X
88h (factory locked),
08h (not factory locked)
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