Rainbow Electronics MAX8649 User Manual
Page 20
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MAX8649
1.8A Step-Down Regulator with Differential
Remote Sense in 2mm x 2mm WLP
20
______________________________________________________________________________________
1
S
NUMBER OF BITS
R/W
SLAVE ADDRESS
7
0
1
8
REGISTER POINTER
1
1
1
7
SLAVE ADDRESS
1
1
SLAVE TO
MASTER
MASTER TO
SLAVE
LEGEND
a) READING A SINGLE REGISTER
1
S
NUMBER OF BITS
R/W
SLAVE ADDRESS
7
0
1
8
REGISTER POINTER X
1
A
1
1
7
SLAVE ADDRESS
1
b) READING MULTIPLE REGISTERS
...
8
DATA X+1
1
8
DATA X+n-1
1
NUMBER OF BITS
...
8
DATA X
1
R/W
A
A
A
A
A
A
Sr
A
1
8
DATA
1
P
1
A
A
1
1
Sr
...
8
DATA X+n
1
1
A
P
R/W
Figures 15a and 15b. Reading from the MAX8649
SCL
SDA
t
R
t
F
t
BUF
START
CONDITION
STOP
CONDITION
REPEATED START CONDITION
START CONDITION
t
SU_STO
t
HD_STA
t
SU_STA
t
HD_DAT
t
SU_DAT
t
LOW
t
HIGH
t
HD_STA
Figure 16. I
2
C Timing Diagram
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