s71ws256jc0 Meet Spansion Inc., s71ws256jc0 Datasheet - Page 34

• Manufacturer Part Number: s71ws256jc0
• Description: Stacked Multi-chip Product Mcp 128/64 Megabit 8m/4m X 16-bit Cmos 1.8 Volt-only, Simultaneous Read/write, Burst Mode Flash Memory With Cellularram
• Manufacturer: Meet Spansion Inc.

Legend: L = Logic Low = V
Notes:
1. The autoselect codes may also be accessed in-system via command sequences.
2. PPB Protection Status is shown on the data bus
11.9
32
Manufacturer ID:
Spansion
Sector Protection
Verification
Indicator Bits
Hardware Sector Group
Protection
Description
Read Cycle 1
Read Cycle 2
Read Cycle 3
Sector/Sector Block Protection and Unprotection
To access the autoselect codes in-system, the host system can issue the autoselect command
via the command register, as shown in
method does not require V
chronous read mode. Refer to the “Autoselect Command Sequence” section on page 68 for more
information.
The hardware sector protection feature disables both programming and erase operations in any
sector. The hardware sector unprotection feature re-enables both program and erase operations
in previously protected sectors. Sector protection/unprotection can be implemented via two
methods.
(Note: For the following discussion, the term “sector” applies to both sectors and sector blocks.
A sector block consists of two or more adjacent sectors that are protected or unprotected at the
same time (see
CE#
L
L
L
L
L
OE#
L
L
L
L
L
IL
, H = Logic High = V
WE#
Table 11.3 Autoselect Codes (High Voltage Method)
H
H
H
H
H
Table , “,” on page 33
RESET#
H
H
H
H
H
Amax
ID
A12
SA
SA
to
X
X
X
. Autoselect mode may only be entered and used when in the asyn-
IH
A11
A10
, BA = Bank Address, SA = Sector Address, X = Don’t care.
S29WS128J/064J
to
X
X
X
X
X
V
V
V
V
V
A9
D a t a
ID
ID
ID
ID
ID
and
Table 14.5, “Command Definitions,” on page
A8
X
X
X
X
X
Table , “,” on page
A7
X
X
X
L
L
S h e e t
A6
X
L
L
L
L
A5
A4
to
X
L
L
X
L
A3
H
H
L
L
L
L
L
35).)
A2
H
H
L
L
L
L
L
A1
H
H
H
H
H
L
L
A0
H
H
H
L
L
L
L
1 = Reserved, 0 = Standard
1 = Locked, 0 = Not Locked
1 = Locked, 0 = Not Locked
S29WS-J_M0_A4 June 24, 2005
DQ6 -Customer Lock Bit
DQ4 & DQ3 - Boot Code
DQ7 - Factory Lock Bit
DQ5 = Handshake Bit
0000h (unprotected)
0000h (unprotected)
0001h (protected),
0001h (protected),
DQ2 - DQ0 = 001
2218h (WS128J)
221Eh (WS064J)
2200h (WS128J)
2201h (WS064J)
DQ15 - DQ8 = 0
Handshake
to DQ0
DQ15
0001h
227Eh
77. This