D A T A S H E E T
Table 3. Autoselect Codes (High Voltage Method)
Amax A11
to to
A5
to
DQ15
Description
CE# OE# WE# RESET# A12 A10 A9 A8 A7 A6 A4 A3 A2 A1 A0
to DQ0
Manufacturer ID:
AMD
VID
VID
VID
L
L
L
L
L
L
H
H
H
H
H
H
X
X
X
X
X
X
X
X
L
L
L
L
L
X
L
L
L
L
L
L
L
L
L
H
L
0001h
227Eh
Read Cycle 1
Read Cycle 2
2218h (128 Mb)
221Eh (64 Mb)
H
H
H
X
2200h (128 Mb)
2201h (64 Mb)
Read Cycle 3
H
L
H
L
H
H
H
L
Sector Protection
Verification
0001h (protected),
0000h (unprotected)
SA
DQ15 - DQ8 = 0
DQ7 - Factory Lock Bit
1 = Locked, 0 = Not Locked
DQ6 -Customer Lock Bit
1 = Locked, 0 = Not Locked
DQ5 = Handshake Bit
1 = Reduced wait-state
Handshake, 0 = Standard
Handshake
VID
Indicator Bits
L
L
H
H
H
X
X
X
X
X
X
X
L
X
L
L
L
L
L
H
H
H
L
DQ4 - DQ0 = 0
Hardware Sector
Group Protection
0001h (protected),
0000h (unprotected)
VID
L
L
H
SA
X
Legend: L = Logic Low = V , H = Logic High = V , BA = Bank Address,
IL
IH
SA = Sector Address, X = Don’t care.
Notes:
1. The autoselect codes may also be accessed in-system via command sequences.
2. PPB Protection Status is shown on the data bus
May 10, 2006 27024B3
Am29BDS128H/Am29BDS640H
15
SPANSION [ SPANSION ]
