TCA9548A_15 Datasheet, PDF (13/35 Pages) Texas Instruments – Low-Voltage 8-Channel I2C Switch With Reset

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Programming (continued)
– Master-receiver terminates the transfer with a STOP condition.
TCA9548A
SCPS207E – MAY 2012 – REVISED OCTOBER 2015
SCL
SDA
ST AR T
Condition
Data Transfer
STOP
Condition
Figure 7. Definition of Start and Stop Conditions
SDA line stable while SCL line is high
SCL
1
0
1
0
1
0
1
0
ACK
SDA
MS B
Bit
Bit
Bit
Bit
Bit
Bit
LSB
ACK
Byte: 1010 1010 ( 0xAAh )
Figure 8. Bit Transfer
8.5.2 Device Address
Figure 9 shows the address byte of the TCA9548A.
Slave Address
1 1 1 0 A2 A1 A0 R/W
Fixed
Hardware
Selectable
Figure 9. TCA9548A Address
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