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參數(shù)資料
型號： S29AL032D90TFI043
廠商： SPANSION LLC
元件分類： PROM
英文描述： 32 Megabit CMOS 3.0 Volt-only Flash Memory
中文描述： 2M X 16 FLASH 3V PROM, 90 ns, PDSO48
封裝： LEAD FREE, MO-142DD, TSOP-48
文件頁數(shù)： 16/67頁
文件大小： 1708K
代理商： S29AL032D90TFI043
November 2, 2006 S29AL032D_00_A8
S29AL032D
21
Data
She e t
7.11
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 VID (11.5 V to 12.5 V) on address pin A9.
Address pins A6, A1, and A0 must be as shown in Table 7.9. In addition, when verifying sector protection, the
sector address must appear on the appropriate highest order address bits (see Table 7.3 on page 15 and
Table 7.5 on page 17). Table 7.9 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 11.2 on page 38. This method does not require VID. See Command
Definitions for details on using the autoselect mode.
Legend
L = Logic Low = VIL, H = Logic High = VIH, SA = Sector Address, X = Don’t care.
Note
The autoselect codes may also be accessed in-system via command sequences. See Table 11.2 on page 38.
7.12
Sector Protection/Unprotection
The hardware sector protection feature disables both program and erase operations in any sector. The
hardware sector unprotection feature re-enables both program and erase operations in previously protected
sectors.
The device is shipped with all sectors unprotected. Spansion offers the option of programming and protecting
sectors at its factory prior to shipping the device through the Spansion ExpressFlash Service. Contact a
Spansion representative for further details.
It is possible to determine whether a sector is protected or unprotected. See Autoselect Mode for details.
Table 7.9 S29AL032D Autoselect Codes (High Voltage Method)
Description
Mode
CE#
OE#
WE#
A21
to
A12
A11
to
A10
A9
A8
to
A7
A6
A5 to
A4
A3
to
A2
A1
A0
DQ8
to
DQ15
DQ7
to
DQ0
Manufacturer ID:
Spansion
LL
H
X
VID
XL
X
L
X
01h
Device ID:
S29AL032D
(Model 00)
Byte
LL
H
X
VID
XL
X
L
H
N/A
A3h
Device ID:
S29AL032D
(Model 03)
Word
LL
H
XX
VID
XL
X
L
H
22h
F6h
Byte
LL
H
X
F6h
Device ID:
S29AL032D
(Model 04)
Word
LL
H
XX
VID
XL
X
L
H
22h
F9h
Byte
LL
H
X
F9h
Sector Protection
Verification
LL
H
SA
X
VID
XL
X
L
H
L
X
01h (protected)
X
00h (unprotected)
Secured Silicon Sector
Indicator Bit (DQ7)
(Model 00)
LL
H
X
VID
XL
X
L
H
X
85 (factory locked)
X
05 (not factory
locked)
Secured Silicon Sector
Indicator Bit (DQ7)
(Model 03)
LL
H
X
VID
XL
X
L
H
X
8D (factory locked)
X
0D (not factory
locked)
Secured Silicon Sector
Indicator Bit (DQ7)
(Model 04)
LL
H
X
VID
XL
X
L
H
X
9D (factory locked)
X
1D (not factory
locked)
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