BQ25703A Datasheet, PDF (31/81 Pages) Texas Instruments – I2C Multi-Chemistry Battery Buck-Boost Charge Controller With System Power Monitor and Processor Hot Monitor

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bq25703A
SLUSCU1 – MAY 2017
Programming (continued)
8.5.1.5 Slave Address and Data Direction Bit
After the START, a slave address is sent. This address is 7 bits long followed by the eighth bit as a data direction
bit (bit R/W). A zero indicates a transmission (WRITE) and a one indicates a request for data (READ).
SDA
SCL
S
START
1-7
ADDRESS
8
9
1-7
8
9
R/W ACK
DATA
ACK
Figure 18. Complete Data Transfer
8.5.1.6 Single Read and Write
1-7
8
DATA
9
ACK
P
STOP
Figure 19. Single Write
Figure 20. Single Read
If the register address is not defined, the charger IC send back NACK and go back to the idle state.
8.5.1.7 Multi-Read and Multi-Write
The charger device supports multi-read and multi-write.
Figure 21. Multi Write
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