I2C

I2C Serial Interface Controller. More...

Collaboration diagram for I2C:

Modules
	xI2C
	CoX I2C Peripheral Interface.

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Detailed Description

I2C Serial Interface Controller.

I2C is two-wire, bi-directional serial bus to transfer data. One bus is SCL which provide the clock pulse for each data bit transfer on the other SDA bus.

I2c can be configure as master mode or slave mode. Master mode provide the clock and start/stop signal. Arbitration exist between simultaneously transmitting masters.

Programmable clocks allow versatile rate control, i2c supports multiple address with mask option.

Any of the status chage will cause an interrupt if the interrupt enable bit set.

Contents

• 1. Function Description
  • 1.1 I2C Protocol
  • 1.2 Data transfer
• 2. Mode Operation
  • 2.2 Master Mode
  • 2.1 Slave Mode
• 3. I2C Applications

1. Function Description

1.1 I2C Protocol

Normally, a standard communication consists of four parts:

• 1) START or Repeated START signal generation
• 2) Slave address and R/W bit transfer
• 3) Data transfer
• 4) STOP signal generation

1.2 Data transfer

Master Transmits Data to Slave:

Master Reads Data form Slave:

2. Mode Operation

2.1 Slave Mode

• Master Transmitter Mode
• Master Receiver Mode

2.2 Master Mode

• Slave Receiver Mode
• Slave Transmitter Mode

3. I2C Applications

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Note:

Here describe the common function of the I2C Peripheral. The CoX Peripheral Interface is based on the functions above.