S70GL01GN00 Datasheet, PDF (30/83 Pages) SPANSION – 3.0 Volt-only Page Mode Flash Memory featuring 110 nm MirrorBit™ Process Technology

Advance Information
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. How-
ever, the autoselect codes can also be accessed in-system through the command
register.
When using programming equipment, the autoselect mode requires VID on ad-
dress 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 on page 13). Table 3
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 autose-
lect command via the command register, as shown in Table 10 on page 54 and
Table 11 on page 57. This method does not require V_ID. Refer to the Autoselect
Command Sequence section for more information.
Description
Manufacturer ID:
Spansion Product
Cycle 1
Cycle 2
Cycle 3
Table 3. Autoselect Codes, (High Voltage Method)
CE#
(See
Note)
OE#
WE
#
A22 A14
to to
A15 A10
A9
A8
to A6
A7
A5
to
A4
A3
to
A2
A1
DQ8 to DQ15
A0 _{BYTE# BYTE#}
= V_IH = V_IL
L
L
H
X
X V_ID X L
X
L
L
L
00
X
L LH
22
X
HH L
22
X
L
L
H
X
X V_ID X L
X
HHH
22
X
DQ7 to DQ0
01h
7Eh
23h
01h
Sector Group
Protection Verification
L
Secured Silicon Sector
Indicator Bit (DQ7),
WP# protects highest
L
address sector
Secured Silicon Sector
Indicator Bit (DQ7),
WP# protects lowest
L
address sector
L
H SA X V_ID X L
X
L
H
L
X
L
H
X
X V_ID X L
X
L
H
H
X
L
H
X
X V_ID X L
X
L
H
H
X
Legend: L = Logic Low = V_IL, H = Logic High = V_IH, SA = Sector Address, X = Don’t care.
Note: CE# can be replaced by CE2# if referring to the second die in the package.
X
01h (protected),
00h (unprotected)
98h (factory
X
locked),
18h (not factory
locked)
88h (factory
X
locked),
08h (not factory
locked)
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:
Persistent Sector Protection
A command sector protection method that replaces the old 12 V controlled pro-
tection method.
28
S70GL01GN00 MirrorBit^TM Flash
S70GL01GN00_00_A1 June 1, 2005