MX29LV800T/B
lect command through the command register without
requiringVID, as shown in table4.
To verify whether or not sector being protected, the sec-
tor address must appear on the appropriate highest or-
der address bit (see Table 1 and Table 2). The rest of
address bits, as shown in table3, are don't care. Once
all necessary bits have been set as required, the pro-
gramming equipment may read the corresponding iden-
tifier code on Q7~Q0.
TABLE 3. MX29LV800T/B AUTO SELECT MODE OPERATION
A18 A11
A9
A8
|
A6
A5
|
A1
A0
Description
Mode CE
OE
WE
|
|
Q15~Q0
A12 A10
A7
X
A2
X
Read Silicon ID
Manfacturer Code
Read Silicon ID
(Top Boot Block)
Device ID
L
L
H
X
X
VID
L
L
L
C2H
Word
Byte
L
L
L
L
L
L
L
L
H
H
H
H
X
X
X
X
X
X
X
X
VID
VID
VID
VID
X
X
X
X
L
L
L
L
X
X
X
X
L
L
L
L
H
H
H
H
22DAH
XXDAH
225BH
Word
(Bottom Boot Block) Byte
XX5BH
XX01H
Sector Protection
Verification
L
L
H
SA
X
VID
X
L
X
H
L
(protected)
XX00H
(unprotected)
NOTE:SA=Sector Address, X=Don't Care, L=Logic Low, H=Logic High
P/N:PM0709
REV. 1.3, JAN. 24, 2002
7
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