Rainbow Electronics MG260 - Manual (Page 40)

MG260 Product Specification
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2.6.3 I
2
C interface
The I
2
C BUS consists of a data line SDA and a clock line SCL. The data transport, clock
generation, address recognition and bus arbitration of this interface are all controlled directly by
hardware. The IIC-interface can operate according to two baud rate modes:
· Standard mode: The maximum baud rate is 100kbit/s. (standard IIC)
· Fast mode: The maximum baud rate is 400kbit/s. (Fast IIC)
Note: Devices with a 0 to 100kbit/s IIC-interface cannot be incorporated in the IIC-bus system, if the
400kbit/s fast mode is chosen. Unpredictable states of these devices would occur, since they
cannot follow the higher transfer rate.
Pin description
Signal Pin # I/O I/O type Description
SDA 28 I/O CMOS/3X data signal
SCL 30 O 3X clock