I2C Bus Interface; Outline; Features - Fujitsu MB86R02 Jade-D Hardware Manual

MB86R02 'Jade-D' Hardware Manual V1.64

29 I2C Bus Interface

This chapter describes the functionality and operation of the I

29.1 Outline

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The I C bus is a serial bus advocated by Philips Semiconductors (now NXP) that supports data
exchange between multiple devices using 2 signal lines. The MB86R02 has 2 interface channels that
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support the I C standard mode (max. 100Kbps)/high-speed mode (max. 400KBps). The xxternal pins
I2C_SDA0, I2C_SDA1, I2C_SCL0 and I2C_SCL1 exclusively use 3.3V, so that the device can be used
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for 3.3V I C communication.
I2C_SDA0/I2C_SDA1 are referred to as the SDA line and I2C_SCL0/I2C_SCL1 are referred to as the
SCL line in this document.

29.2 Features

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The I C modules have the following features:
• Master transmission/reception function
• Slave transmission/reception function
• Arbitration function
• Clock synchronization function
• Slave address detecting function
• General call address detecting function
• Transfer direction detecting function
• Repeat occurrence and detecting function of start condition
• Bus error detecting function
• Corresponding to standard mode (max. 100KBps)/high-speed mode (max. 400KBps)
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C bus interface.
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