Rainbow Electronics MAX8649 - Manual (Page 20)

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