Data
She et
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
In addition, when verifying sector protection,
the sector address must appear on the appropriate highest order address bits (see
-
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
and
This method does not
require V
ID
. Refer to the Autoselect Command Sequence section for more information.
Table 8.9
Autoselect Codes, (High Voltage Method)
DQ7 to DQ0
A
max
to
A15
X
A14
to
A10
X
A8
to
A7
X
A5
to
A4
X
A3
to
A2
L
L
L
L
H
X
X
V
ID
X
L
X
H
H
L
L
L
H
X
X
V
ID
X
L
X
H
H
L
L
H
SA
X
V
ID
X
L
X
L
DQ8 to DQ15
A1
L
L
H
H
L
H
H
H
A0
L
H
L
H
H
L
H
L
BYTE#
= V
IH
00
22
22
22
22
22
22
X
BYTE#
= V
IL
X
X
X
X
X
X
X
X
01, 02
V1, V2
01h
7Eh
0Ch
01h
7Eh
1Dh
00h
Model Number
03, 04
01h
7Eh
10h
00h (04, bottom boot)
01h (03, top boot)
7Eh
1Ah
00h (04, bottom boot)
01h (03, top boot)
01h (protected),
00h (unprotected)
For S29GL064N and S29GL032N:
L
L
H
X
X
V
ID
X
L
X
L
H
H
X
X
9A (factory locked),
1A (not factory locked)
For S29GL064N and S29GL032N:
L
L
H
X
X
V
ID
X
L
X
L
H
H
X
X
8A (factory locked),
0A (not factory locked)
06, 07,
V6, V7
01h
7Eh
13h
01h
Description
Manufacturer ID:
Spansion Products
S29GL064N
Cycle 1
Cycle 2
Cycle 3
Cycle 1
Cycle 2
Cycle 3
CE# OE# WE#
L
L
H
A9
V
ID
A6
L
Sector Protection
Verification
Secured Silicon Sector
Indicator Bit (DQ7),
WP# protects highest
address sector
Secured Silicon Sector
Indicator Bit (DQ7),
WP# protects lowest
address sector
Legend
L = Logic Low = V
IL
H = Logic High = V
IH
SA = Sector Address
X = Don’t care
S29GL032N
November 16, 2007 S29GL-N_01_09
S29GL-N MirrorBit
®
Flash Family
29
SPANSION [ SPANSION ]
