LM3537_13 Datasheet, PDF (20/33 Pages) Texas Instruments – 8-Channel WLED Driver with Four Integrated LDOs

LM3537
SNVS634B – JUNE 2011 – REVISED MAY 2013
MSB
LSB
0
Bit 7
1
Bit 6
1
Bit 5
1
Bit 4
0
Bit 3
0
Bit 2
0
Bit 1
R/W
Bit 0
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Serial Bus Slave Address (chip address)
Figure 8. Chip Address
TRANSFERRING DATA
Every byte on the SDA line must be eight bits long, with the most significant bit (MSB) transferred first. Each byte
of data must be followed by an acknowledge bit (ACK). The acknowledge related clock pulse (9th clock pulse) is
generated by the master. The master releases SDA (HIGH) during the 9th clock pulse. The LM3537 pulls down
SDA during the 9th clock pulse, signifying an acknowledge. An acknowledge is generated after each byte has
been received. Figure 9 is an example of a write sequence to the DIODE ENABLE register of the LM3537.
Figure 9. Write Sequence to the LM3537
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