ST6391 View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
'ST6391' PDF : 68 Pages View PDF
ST6391,92,93,95,97,99
SERIAL PERIPHERAL INTERFACE (Continued)
Compatibility S-BUS/I2CBUS
Using the S-BUS protocol it is possible to imple-
ment mixed system including S-BUS/I2CBUS bus
peripherals. In order to have the compatibility with
the I2CBUS peripherals, the devices including the
S-BUS interface must have their SDA and SEN
pins connected together as shown in the following
Figure 48 (a and b). It is also possible to use mixed
S-BUS/I2CBUS protocols as showed in figure 46
(c). S-BUS peripherals will only react to S-BUS
protocol signals, while I2CBUS peripherals will
only react to I2CBUS signals. Multimaster configu-
ration is not possible with the ST63XX SPI (single
master only).
Figure 48.S-BUS/I2C BUS Mixed Configurations
(a)
(b)
(c)
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