X76F041 Datasheet, PDF (13/21 Pages) Xicor Inc. – PASS TM SecureFlash

X76F041
Read Password Reset
This mode allows resetting of the READ password to all
“0”s in case re-programming is needed and the old pass-
word is not known.
Write Password Reset
This mode allows resetting of the WRITE password to all
“0”s in case re-programming is needed and the old pass-
word is not known.
Mass Program
This mode allows mass programming of the array, con-
figuration registers and password to all “0”s using a spe-
cial configuration command. All parts are shipped mass
programmed.
Mass Erase
This mode allows mass erase of the array, configuration
register and password to all “1”s using a special configu-
ration command.
Figure 15. Program Configuration Registers
SDA LINE
S
T
A
R
T
C
M
D
A
X
A
X
A
X
A
X
A
8
CONFIGURATION CONFIGURATION
INSTRUCTION PASSWORD 7
S
A
A
A
C
C
C
K
K
K
IF PASSWORD
MATCH THEN
BCR 1
BYTE
BCR 2
BYTE
CR
BYTE
A
A
A
A
C
C
C
C
K
K
K
K
RR
BYTE
CONFIGURATION
PASSWORD 0
A
C
K
RC
BYTE
A
C
K
WAIT
tWC/ACK POLLING
A
C
K
S
T
O
P _WAIT
S ^tWC
A
C
K
7002 ILL F18.1
Figure 16. Read Configuration Registers
SDA LINE
S
T
A
R
T
C
M
D
A
X
A
X
A
X
A
X
A
8
CONFIGURATION CONFIGURATION
INSTRUCTION PASSWORD 7
S
A
A
A
C
C
C
K
K
K
IF PASSWORD
MATCH THEN
BCR 1
BYTE
BCR 2
BYTE
CR
BYTE
A
A
A
A
C
C
C
C
K
K
K
K
RR
BYTE
CONFIGURATION
PASSWORD 0
WAIT
tWC/ACK POLLING
A
A
C
C
K
K
S
RC
T
BYTE
O
P
S
A
C
K
7002 ILL F19.1
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