DI2CM

The DI2CM core provides an interface between a microprocessor/microcontroller and I2C bus. It can work as:

• a master transmitter or
• master receiver

depending on a working mode determined by the microprocessor/microcontroller. The DI2CM core incorporates all features required by the latest I2C specification, including clock synchronization, arbitration, multi-master systems, and high-speed transmission mode. Built-in timer allows operation from a wide range of clk frequencies. The DI2CM is a technology independent design that can be implemented in variety of process technologies.

• Conforms to v.3.0 of the I2C specification
• Master operation
  • Master transmitter
  • Master receiver
• Support for all transmission speeds
  • Standard (up to 100 kb/s)
  • Fast (up to 400 kb/s)
  • Fast Plus (up to 1 Mb/s)
  • High Speed (up to 3,4 Mb/s)
• Arbitration and clock synchronization
• Support for multi-master systems
• Support for both 7-bit and 10-bit addressing formats on the I2C bus
• Interrupt generation
• Build-in 8-bit timer for data transfers speed adjusting
• Host side interface dedicated for microprocessors/microcontrollers
• User-defined timing (data setup, start setup, start hold, etc.)
• Available system interface wrappers:
  • AMBA – APB Bus
  • Altera Avalon Bus
  • Xilinx OPB Bus
• Fully synthesizable
• Static synchronous design
• Positive edge clocking and no internal tri-states
• Scan test ready