S29GL032A Datasheet, PDF (33/88 Pages) SPANSION – 64 MEGABIT 32MEGABIT 3.0 BOLT ONLY PAGE MODE FLASH MEMORY

Advance Information
method does not require V_ID. Refer to the Autoselect Command Sequence section
for more information.
Table 12. Autoselect Codes, (High Voltage Method)
DQ7 to DQ0
A22 A14
A8
A5 A3
DQ8 to DQ15
Model Number
to to
to
to to
BYTE# = BYTE# =
Description CE# OE# WE# A15 A10 A9 A7 A6 A4 A2 A1 A0 V_IH
Manufacturer
V_IL
R1, R2, R8, R9
R3, R4
R5, R6, R7
ID: Spansion
LL
H
X X V_ID X L X L L L
00
X
01h
Products
01h
01h
Cycle 1
L L H 22
X
7Eh
7Eh
7Eh
Cycle 2
HH L
22
X
0Ch
10h
13h
LL
H
X X V_ID X L X
Cycle 3
H H H 22
X
00h (-R4,
01h
bottom boot)
01h (-R3, top
01h
boot)
Cycle 1
L L H 22
X
7Eh
7Eh
Cycle 2
HH L
22
X
1Dh
1Ah
LL
H
X X V_ID X L X
Cycle 3
H H H 22
X
00h (-R4,
00h
bottom boot)
01h (-R3,
top boot)
Sector Group
Protection
LL
H SA X V_ID X L X L H L
X
X
Verification
01h (protected),
00h (unprotected)
Secured Silicon
Sector Indicator
Bit (DQ7), WP# L L
H
X X V_ID X L X L H H
X
X
protects highest
98h (factory locked),
18h (not factory locked)
address sector
Secured Silicon
Sector Indicator
Bit (DQ7), WP# L L
H
X X V_ID X L X L H H
X
X
protects lowest
88h (factory locked),
08h (not factory locked)
address sector
Legend: L = Logic Low = V_IL, H = Logic High = V_IH, SA = Sector Address, X = Don’t care.
Sector Group Protection and Unprotection
The hardware sector group protection feature disables both program and erase
operations in any sector group (see Table 11-Table 20). The hardware sector
group unprotection feature re-enables both program and erase operations in pre-
viously protected sector groups. Sector group protection/unprotection can be
implemented via two methods.
Sector protection/unprotection requires V_ID on the RESET# pin only, and can be
implemented either in-system or via programming equipment. Figure 2 shows
the algorithms and Figure 24 shows the timing diagram. This method uses stan-
dard microprocessor bus cycle timing. For sector group unprotect, all unprotected
sector groups must first be protected prior to the first sector group unprotect
write cycle.
The device is shipped with all sector groups unprotected. Spansion offers the op-
tion of programming and protecting sector groups at its factory prior to shipping
the device through Spansion Programming Service. Contact a Spansion represen-
tative for details.
It is possible to determine whether a sector group is protected or unprotected.
See the Autoselect Mode section for details.
January 28, 2005 S29GLxxxA_00_A2
S29GLxxxA MirrorBit™ Flash Family
31