MX29LV040
lect command through the command register without
requiring VID, as shown in table 3.
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 2. MX29LV040 AUTOMATIC SELECT MODE OPERATION
A18
Description
CE
OE
WE
|
A16
Read Silicon ID
Manfacturer Code
Read Silicon ID
L
L
H
X
X
VID
X
L
X
L
H
4FH
01H
Sector Protection
Verification
L
L
H
SA
X
VID
X
L
X
H
L
(protected)
00H
(unprotected)
L
L
H
X
A15
|
A10
X
VID
A9
A8
|
A7
X
L
A6
A5
|
A2
X
L
L
C2H
A1
A0
Q7~Q0
NOTE:SA=Sector Address, X=Don't Care, L=Logic Low, H=Logic High
P/N:PM0722
REV. 0.7, JUL. 12, 2001
5
MCNIX [ MACRONIX INTERNATIONAL ]
