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ST6380 Datasheet(PDF) 40 Page - STMicroelectronics

Part # ST6380
Description  8-BIT MCUs WITH ON-SCREEN-DISPLAY FOR TV TUNING
PDF  82 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST6380 Datasheet(HTML) 40 Page - STMicroelectronics

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ST6380, ST6381, ST6382, ST6383, ST6388, ST6389
SERIAL PERIPHERAL INTERFACE (Cont’d)
4.3.3 Compatibility S-BUS/I2C BUS
Using the S-BUS protocol it is possible to imple-
ment mixed system including S-BUS/I2C BUS bus
peripherals. In order to have the compatibility with
the I2C BUS peripherals, the devices including the
S-BUS interface must have their SDA and SEN
pins connected together as shown in the following
Figure 28 (a and b). It is also possible to use mixed
S-BUS/I2C BUS protocols as showed in Figure 28
(c). S-BUS peripherals will only react to S-BUS
protocol signals, while I2C BUS peripherals will
only react to I2C BUS signals. Multimaster config-
uration is not possible with the ST63xx SPI (single
master only).
Figure 28. S-BUS/ I2C BUS Mixed Configurations
SCL
SDA
SEN
ST6 S-BUS
PROTOCOL
SCL
SDA
SEN
I2C-BUS
SLAVE
SCL
SDA
SCL
SDA
SEN
ST6 I2C-BUS
PROTOCOL
SCL
SDA
SEN
I2C-BUS
SLAVE
SCL
SDA
SCL
SDA
SEN
ST6
PROTOCOL
SCL
SDA
SEN
I2C-BUS
SLAVE
SCL
SDA
S-BUS/I2C-BUS
VA00457
VA00456
VA00452
a
b
c



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