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STARTCondition
DATA
CLK
STOP Condition
S P
CE
SCLK
... ......
SDAT
Slave Address DataRegister Address
.........
A6 R6 R5 R0
AC
K
D7 D6 D5 D0
AC
K
R7
AC
K
R/WA0A4A5
0 0 0 0
StopStart
NOTE: SLAVE=TPS60251
SCLK
... ......
SDAT
Slave Address Slave Address
Register
Address
....
A6 R0
AC
K
R7
AC
K
R/WA0
0 0 0 0
Stop
Start
NOTE: SLAVE=TPS60251
...
..
AC
K
D0D7
AC
K
R/WA0A6
1
Slave
Drives
theData
Master
Drives
ACKandStop
Repeated
Start
..
TPS60251
SLVS767C – APRIL 2007 – REVISED NOVEMBER 2007
Figure 16. START and STOP Conditions
Figure 17. Serial I/F READ From TPS60251: Protocol A
Figure 18. Serial I/F READ From TPS60251: Protocol B
Figure 19. Serial I/F Timing Diagram
The I
2
C interface uses a combined protocol in which the START condition and the Slave Address are both
repeated. The TPS60251 provides 2 I
2
C Slave Address using internal EEPROM in case more than 1 device is
used in the system. The primary I
2
C Slave Address is 1110111. For the alternative I
2
C address, contact the
factory.
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