Datasheet

ack from slave
w ackstart msb Chip Address lsb msb Register Add lsb msb DATA lsback ack stop
ack from slave ack from slave
SCL
start id = K¶
xx
w ack addr = K¶00 DGGUHVVK¶00 dataack ack stop
SDA
rs msb Chip Address lsb r ack
repeated start data from slave ack from master
rid = K¶
xx
ack rs
SCL
SDA
start id = K¶
xx
w ack addr = K¶02 DGGUHVVK¶02 dataack ack stop
ack from slave
w ackstart msb Chip Address lsb msb Register Add lsb msb DATA lsback ack stop
ack from slave ack from slave
LM3370
SNVS406N –NOVEMBER 2005–REVISED MAY 2013 www.ti.com
I
2
C-Compatible Write Cycle
W = write (SDA = “0”)
r = read (SDA = “1”)
ack = acknowledge (SDA pulled down by either master or slave)
rs = repeated startxx=36h
Figure 39.
However, if a READ function is to be accomplished, a WRITE function must precede the READ function, as
shown in I
2
C-Compatible Read Cycle
I
2
C-Compatible Read Cycle
Figure 40.
Device Register Information
Table 2. Register Information
Register Name Location Type Function
Control 00 R/W Control signal for Buck 1 and Buck 2
Buck 1 01 R/W Output setting and Mode selection for Buck 1
Buck 2 02 R/W Output setting and Mode selection for Buck 2 and POR disable
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