D a t a S h e e t
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 VID on address pin A9. Address pins A6,
A3, A2, A1, and A0 must be as shown in Table 8.9 on page 29. In addition, when verifying sector protection,
the sector address must appear on the appropriate highest order address bits (see Table 8.2 - Table 8.8).
Table 8.9 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 Table 10.1 on page 51 and Table 10.3 on page 53. This method does not
require VID. Refer to the Autoselect Command Sequence section for more information.
Table 8.9 Autoselect Codes, (High Voltage Method)
DQ7 to DQ0
DQ8 to DQ15
Model Number
A14
to
A
A8
to
A5 A3
to to
max
to
BYTE# BYTE# 01, 02
06, 07,
V6, V7
Description
CE# OE# WE# A15
A10 A9 A7 A6 A4 A2 A1 A0
= V
= V
V1, V2
03, 04
IH
IL
Manufacturer ID:
Spansion Products
L
L
H
X
X
X
X
V
X
L
X
L
L
L
00
X
01h
01h
01h
ID
Cycle 1
Cycle 2
L
L
H
L
22
22
X
X
7Eh
0Ch
7Eh
10h
7Eh
13h
H
H
L
L
H
V
X
L
X
ID
00h (04, bottom boot)
01h (03, top boot)
Cycle 3
H
H
H
22
X
01h
01h
Cycle 1
Cycle 2
L
L
H
L
22
22
X
X
7Eh
1Dh
7Eh
1Ah
H
H
L
L
H
X
X
V
X
L
X
ID
00h (04, bottom boot)
01h (03, top boot)
Cycle 3
H
L
H
H
H
L
22
X
X
X
00h
Sector Protection
Verification
01h (protected),
00h (unprotected)
L
L
L
L
H
H
SA
X
X
X
V
V
X
X
L
L
X
X
ID
ID
Secured Silicon Sector
Indicator Bit (DQ7),
WP# protects highest
address sector
For S29GL064N and S29GL032N:
L
L
H
H
H
H
X
X
X
X
9A (factory locked),
1A (not factory locked)
Secured Silicon Sector
Indicator Bit (DQ7),
WP# protects lowest
address sector
For S29GL064N and S29GL032N:
L
L
H
X
X
V
X
L
X
8A (factory locked),
0A (not factory locked)
ID
Legend
L = Logic Low = V
IL
H = Logic High = V
IH
SA = Sector Address
X = Don’t care
November 16, 2007 S29GL-N_01_09
S29GL-N MirrorBit® Flash Family
29