SDA6000 Datasheet, PDF (252/380 Pages) Infineon Technologies AG – Teletext Decoder with Embedded 16-bit Controller

SDA 6000
Peripherals
This mechanism allows a number of configurations of the physical I²C Bus interface:
Physical Channels
Can be selected, so the I²C module can use electrically separated channels or increase
the addressing range by using more data lines.
Note: Baud rate and physical channels should never be changed (via ICCFG) during a
transfer.
Channel Switching
The I²C module can be connected to a specific pair of pins (e.g. SDA0 and SCL0) which
then forms a separate I²C channel to the external system. The channel can be
dynamically switched by connecting the module to another pair of pins (e.g. SDA1 and
SCL1). This establishes physically separate interface channels.
Broadcasting:
Connecting the module to more than one pair of pins (e.g. SDA0/1 and SCL0/1) allows
the transmission of messages over multiple physical channels at the same time. Please
note that this configuration is critical when the M2 is a slave. In master mode it cannot
be guaranteed that all selected slaves have reached the message.
Register ICCFG selects the bus baud rate as well the activation of SDA and SCL lines.
So an external I²C channel can be established (baud rate and physical lines) with one
single register access.
Note: Respective port pin definition
Users Manual
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2000-06-15