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LNBH25S датащи(PDF) 22 Page - STMicroelectronics

номер детали LNBH25S
подробное описание детали  LNB supply and control IC with step-up and IC interface
PDF  37 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

LNBH25S датащи(HTML) 22 Page - STMicroelectronics

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I²C interface protocol
LNBH25S
22/37
DocID026736 Rev 2
7.2
Read mode transmission
In read mode the byte sequence as follows:
A start condition (S)
A chip address byte with the LSB bit R/W=0
The register address byte of the internal first register to be accessed
A stop condition (P)
A new master transmission with the chip address byte and the LSB bit R/W=1
After the acknowledge, the LNBH25S starts to send the addressed register content.
As long as the master keeps the acknowledge low, the LNBH25S transmits the next
address register byte content
The transmission is terminated when the master sets the acknowledge high with the
following stop bit
Figure 12: Example of reading procedure starting with first status address 0X0
ACK = acknowledge
S = start
P = stop
R/W = 1/0, read/write bit
X = 0/1, set the values to select the chip address, see Table 16: "Address pin
characteristics" for pin selection and to select the register address see Table 7: "Data 1
(read/write register. Register address = 0X2)".



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