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STCF03ITBR Fiches technique(PDF) 19 Page - STMicroelectronics

No de pièce STCF03ITBR
Description  High power white LED driver with I²C interface
PDF  33 Pages
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Fabricant  STMICROELECTRONICS [STMicroelectronics]
Site Internet  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STCF03ITBR Fiches technique(HTML) 19 Page - STMicroelectronics

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Introduction
STCF03I
19/33
7.12
Reading from multiple registers with incremental addressing
Reading from multiple registers starts in the same way like reading from a single register. As
soon as the first register is read, the register address is automatically increased. If the
master generates an acknowledge pulse after receiving the data from the first register, then
reading of the next register can start immediately without sending the device address and
the register address again. The last acknowledge pulse before the STOP bit is not required.
See the Figure 12.
Figure 11.
Reading from a single register
S
T
A
R
T
DEVICE
ADDRESS
7 bits
A
C
K
W
R
I
T
E
M
S
B
L
S
B
R
/
W
ADDRESS
OF
REGISTER
A
C
K
M
S
B
L
S
B
S
T
A
R
T
A
C
K
R
/
W
R
E
A
D
DEVICE
ADDRESS
7 bits
DATA
L
S
B
S
T
O
P
N
O
A
C
K
SDA LINE
S
T
A
R
T
DEVICE
ADDRESS
7 bits
A
C
K
W
R
I
T
E
M
S
B
L
S
B
R
/
W
ADDRESS
OF
REGISTER
A
C
K
M
S
B
L
S
B
S
T
A
R
T
A
C
K
R
/
W
R
E
A
D
DEVICE
ADDRESS
7 bits
DATA
L
S
B
S
T
O
P
N
O
A
C
K
SDA LINE
Figure 12.
Reading from multiple registers
S
T
A
R
T
DEVICE
ADDRESS
7 bits
A
C
K
W
R
I
T
E
M
S
B
L
S
B
R
/
W
ADDRESS OF
REGISTER i
A
C
K
M
S
B
L
S
B
S
T
A
R
T
A
C
K
R
/
W
R
E
A
D
DEVICE
ADDRESS
7 bits
DATA i
A
C
K
S
T
O
P
L
S
B
DATA i+1
A
C
K
L
S
B
DATA i+2
A
C
K
L
S
B
DATA i+2
L
S
B
DATA i+n
M
S
B
M
S
B
M
S
B
M
S
B
A
C
K
L
S
B
N
O
A
C
K
SDA LINE
S
T
A
R
T
DEVICE
ADDRESS
7 bits
A
C
K
W
R
I
T
E
M
S
B
L
S
B
R
/
W
ADDRESS OF
REGISTER i
A
C
K
M
S
B
L
S
B
S
T
A
R
T
A
C
K
R
/
W
R
E
A
D
DEVICE
ADDRESS
7 bits
DATA i
A
C
K
S
T
O
P
L
S
B
DATA i+1
A
C
K
L
S
B
DATA i+2
A
C
K
L
S
B
DATA i+2
L
S
B
DATA i+n
M
S
B
M
S
B
M
S
B
M
S
B
A
C
K
L
S
B
N
O
A
C
K
SDA LINE



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