S29GL-A SPANSION [SPANSION], S29GL-A Datasheet - Page 33

• Manufacturer Part Number: S29GL-A
• Description: S29GL-A MirrorBit Flash Family
• Manufacturer: SPANSION [SPANSION]

Legend: L = Logic Low = V
April 22, 2005 S29GL-A_00_A3
Manufacturer ID:
Spansion Products
Sector Group
Protection
Verification
Secured Silicon
Sector Indicator
Bit (DQ7), WP#
protects highest
address sector
Secured Silicon
Sector Indicator
Bit (DQ7), WP#
protects lowest
address sector
Description
Cycle 1
Cycle 2
Cycle 3
Cycle 1
Cycle 2
Cycle 3
Cycle 1
Sector Group Protection and Unprotection
CE# OE# WE#
L
L
L
L
L
L
L
Table 31 on page
Command Sequence section for more information.
The hardware sector group protection feature disables both program and erase
operations in any sector group (see
unprotection feature re-enables both program and erase operations in previously
protected sector groups. Sector group protection/unprotection can be imple-
mented via two methods.
Sector protection/unprotection requires V
implemented either in-system or via programming equipment.
36
This method uses standard 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 repre-
sentative for details.
It is possible to determine whether a sector group is protected or unprotected.
See
shows the algorithms and
L
L
L
L
L
L
L
Autoselect Mode on page 30
H
H
H
H
H
H
H
IL
, H = Logic High = V
A d v a n c e
A22
A15
SA
to
X
X
X
X
X
X
Table 15. Autoselect Codes, (High Voltage Method)
A14
A10
to
X
X
X
X
X
X
X
55. This method does not require V
V
V
V
V
V
V
V
A9
ID
ID
ID
ID
ID
ID
ID
A8
A7
to
X
X
X
X
X
X
X
S29GL-A MirrorBit™ Flash Family
A6
L
L
L
X
L
L
L
IH
I n f o r m a t i o n
A5
A4
to
X
X
X
X
X
X
X
, SA = Sector Address, X = Don’t care.
Figure 24, on page 80
A3
A2
to
H
H
H
H
X
L
L
L
L
L
L
for details.
A1 A0
H
H
H
H
H
H
H
L
L
L
L
Tables 14 –
H
H
H
H
H
H
H
L
L
L
L
BYTE#
= V
ID
DQ8 to DQ15
00
22
22
22
22
22
22
22
X
X
X
IH
on the RESET# pin only, and can be
25). The hardware sector group
BYTE#
= V
X
X
X
X
X
X
X
X
X
X
X
IL
shows the timing diagram.
ID
C4h (-R2, bottom boot)
49h (-R1, top boot)
01h (protected),
00h (unprotected)
For S29GL064A and S29GL032A:
For S29GL016A:
For S29GL064A and S29GL032A:
For S29GL016A:
. Refer to the Autoselect
99h (factory locked), 19h (not factory locked)
94h (factory locked), 14h (not factory locked)
89h (factory locked), 09h (not factory locked)
84h (factory locked), 04h (not factory locked)
R1, R2,
R8, R9
01h
7Eh
0Ch
01h
7Eh
1Dh
00h
Figure 2, on page
Model Number
DQ7 to DQ0
00h (-R4, bottom boot)
01h (-R3, top boot)
00h (-R4, bottom boot)
01h (-R3, top boot)
R3, R4
01h
7Eh
10h
7Eh
1Ah
01h
7Eh
13h
01h
R5,
R6,
R7
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