STV8287D View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
STV8287D
STMicroelectronics
'STV8287D' PDF : 149 Pages View PDF
I²C Interface
11 I²C Interface
STV82x7
11.1 I²C Address and Protocol
The STV82x7 I²C interface works in Slave mode and is fully compliant with I²C standards in Fast
mode (maximum frequency of 400 kHz). Two pairs of I²C chip addresses are used to connect two
STV82x7 chips to the same I²C serial bus. The device address pairs are defined by the polarity of
the ADR_SEL pin and are listed in the following table:
Table 8: I²C Read/Write Addresses
ADR
LOW (connected to GND1)
HIGH (connected to VDD1)
Write Address (W)
80h
84h
Read Address (R)
81h
85h
Protocol Description
● Write Protocol
Start W A
Sub-address
A Data A .... A Data A Stop
● Read Protocol
Start W A
Sub-address
A Stop
Start R A Data A .... A Data N
● W = Write address,
● R = Read address,
● A = Acknowledge,
● N = No acknowledge.
● Sub-address is the register address pointer; this value auto-increments for both write and read.
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