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AN2827 Scheda tecnica(PDF) 22 Page - STMicroelectronics

Il numero della parte AN2827
Spiegazioni elettronici  Driver for double flash LED with I²C interface
PDF  30 Pages
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Produttore elettronici  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

AN2827 Scheda tecnica(HTML) 22 Page - STMicroelectronics

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Reading and writing to the STCF05 registers through the I²C bus
AN2827
22/30
Doc ID 15047 Rev 1
7.4
Reading from multiple registers with incremental addressing
Reading from multiple registers starts in the same way as reading from a single register. As
soon as the first register is read, the register address is automatically incremented. If the
master generates an acknowledge pulse after receiving the data from the first register, then
reading from the next register can start immediately without having to resend the device and
register addresses. The last acknowledge pulse before the STOP bit is not required.
Figure 18.
Reading from multiple registers
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T
A
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DEVICE
ADDRESS
7 bits
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ADDRESS OF
REGISTER i
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DEVICE
ADDRESS
7 bits
DATA i
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DATA i+1
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DATA i+2
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DATA i+2
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DATA i+n
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SDA LINE
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DEVICE
ADDRESS
7 bits
A
C
K
W
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M
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/
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ADDRESS OF
REGISTER i
A
C
K
M
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L
S
B
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T
A
R
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A
C
K
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/
W
R
E
A
D
DEVICE
ADDRESS
7 bits
DATA i
A
C
K
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T
O
P
L
S
B
DATA i+1
A
C
K
L
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B
DATA i+2
A
C
K
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S
B
DATA i+2
L
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B
DATA i+n
M
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M
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N
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SDA LINE



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