SMM105
Preliminary Information
I2C PROGRAMMING INFORMATION (CONTINUED)
S
T
S
T
O
P
A
Configuration
Register Address = 42HEX
R
T
Master
Slave
Bus Address
Data = 55HEX
S
A
3
S
A
2
S
A
1
S
A
0
A
2
A
1
A
0
W
1
0
0
0
0
0
1
0
0
1
0
1
0
1
0
1
A
C
K
A
C
K
A
C
K
4HEX
Write Protection
Register Address
2HEX
5HEX Unlocks
5HEX Unlocks
Configuration
Registers
General Purpose
EE
Figure 9 – Write Protection Register Write
S
T
A
R
T
S
T
O
P
Configuration
Master
Slave
Bus Address
Data
Register Address
S
A
3
S
A
2
S
A
1
S
A
0
A
2
A
1
A
0
C
7
C
6
C
5
C
4
C
3
C
2
C
1
C
0
D
7
D
6
D
5
D
4
D
3
D
2
D
1
D
0
W
A
C
K
A
C
K
A
C
K
Figure 10 – Configuration Register Byte Write
S
T
A
R
T
Configuration
Register Address
Master
Bus Address
Data (1)
S
A
3
S
A
2
S
A
1
S
A
0
A
2
A
1
A
0
C
7
C
6
C
5
C
4
C
3
C
2
C
1
C
0
D
7
D
6
D
5
D
4
D
3
D
2
D
1
D
0
W
Slave
A
C
K
A
C
K
A
C
K
S
T
O
P
Master
Slave
Data (2)
Data (16)
D
7
D
6
D
5
D
4
D
3
D
2
D
1
D
0
D
7
D
6
D
5
D
2
D
1
D
0
D
7
D
6
D
5
D
4
D
3
D
2
D
1
D
0
A
C
K
A
C
K
A
C
K
Figure 11 – Configuration Register Page Write
Summit Microelectronics, Inc
2068 1.8 09/20/05
15
SUMMIT [ SUMMIT MICROELECTRONICS, INC. ]
