Atmel AT34C02C
Figure 7-2.
Setting reversible write protect register (RSWP)
S
T
A
R
T
CONTROL
BYTE
WORD
ADDRESS
DATA
S
T
O
P
SDA LINE
0 1 1 0 0 0 1 0
A
C
K
= Don't Care
A
C
K
A
C
K
Figure 7-3.
Clearing reversible write protect register (RSWP)
S
T
A
R
T
CONTROL
BYTE
WORD
ADDRESS
DATA
S
T
O
P
SDA LINE
0 1 1 0 0 1 1 0
Table 7-1.
Write protection
A
C
K
= Don't Care
A
C
K
A
C
K
Pin
Preamble
RW
Command
Set PSWP
Set RSWP
Clear RSWP
A2
A2
0
0
A1
A1
0
1
A0
A0
VHV
VHV
B7
0
0
0
B6
1
1
1
B5
1
1
1
B4
0
0
0
B3
A2
0
0
B2
A1
0
1
B1
A0
1
1
B0
0
0
0
Table 7-2.
VHV
Min
Max
Units
VHV
Note:
VHV - V CC > 4.8V
7
10
V
9
5185E–SEEPR–3/11
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