DI2CS

The DI2CS core provides an interface between a microprocessor / microcontroller and I2C bus. It can work as:

• a slave transmitter or
• slave receiver

depending on a working mode determined by the master device. The DI2CS core incorporates all features required by the latest I2C specification, including:

• clock synchronization,
• arbitration,
• high-speed transmission mode.

The DI2CS supports all transmission speed modes:

• 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)

DCD’s IP Core is a technology independent design and can be implemented in various process technologies.

• Conforms to v.3.0 of the I2C specification
• Slave operation
  • Slave transmitter
  • Slave receiver
• Supports 3 transmission speed modes
  • 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)
• Double buffering of RX/TX data
• Configurable RX and TX FIFOs up to 256 bytes each
• Configurable length of SCL, SDA lines glitch filtering
• Allows operation from a wide range of input clock frequencies
• Simple interface allows easy connection to microprocessor/microcontroller devices
• Interrupt generation
• User-defined data setup time
• 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