Datasheet

D7 D6 D5 D4 D3 D2 D1 D0
1 9 1 9
Ack
by
SM72442
Start by
Master
R/W
Frame 1
Serial Bus Address Byte
Frame 2
Command
Register Byte
Ack
by
SM72442
D7 D6 D5 D4 D3 D2 D1 D0
1 9
Ack
by
SM72442
Frame 3
Length Byte = 7
Frame 4
Data 1
Ack
by
SM72442
Stop
by
Master
SCL
SDA
SCL
(Continued)
SDA
(Continued)
A5 A3 A2 A0A6 A4 A1
D7 D6 D5 D4 D3 D2 D1 D0
1 9 1 9
Ack
by
SM72442
Frame 10
Data 6
Frame 11
Data 7
No Ack
by
SM72442
SCL
(Continued)
SDA
(Continued)
D7 D6 D5 D4 D3 D2 D1 D0
1 9
D7 D6 D5 D4 D3 D2 D1 D0
D7 D6 D5 D4 D3 D2 D1 D0
1 9 1 9
Ack
by
SM72442
Start by
Master
Repeat
Start by
Master
R/W
Frame 1
Serial Bus Address Byte
Frame 2
Command
Register Byte
Ack
by
SM72442
D7 D6 D5 D4 D3 D2 D1 D0
1 9 1 9
Ack
by
SM72442
R/W
Frame 3
Serial Bus Address Byte
Frame 4
Length Byte = 7
Ack
by
SM72442
Stop
by
Master
SCL
SDA
SCL
(Continued)
SDA
(Continued)
A5 A3 A2 A0A6 A4 A1
A5 A3 A2 A0A6 A4 A1
D7 D6 D5 D4 D3 D2 D1 D0
1 9 1 9
Ack
by
SM72442
Frame 10
Data 6
Frame 11
Data 7
No Ack
by
SM72442
SCL
(Continued)
SDA
(Continued)
D7 D6 D5 D4 D3 D2 D1 D0
SM72442
SNVS689H –OCTOBER 2010–REVISED APRIL 2013 www.ti.com
Figure 11. I2C Read Sequence
Figure 12. I2C Write Sequence
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