DI2CSB bridge to APB, AHB, AXI bus, provides an interface between a passive target device e.g. memory, LCD display, pressure sensors etc. and I2C bus. It can work as:

  • a slave receiver or
  • transmitter

depending on a working mode determined by the master device. A very simple interface, composed with read, write and data signals, allows easy connection to target devices. The core does not require any programming and is ready to work after power up/reset. Read, write, burst read, burst write and repeated start transmissions are automatically recognized by the core. The solution incorporates all features required by the I2C specification. The DI2CSB supports the following transmission modes:

  • Standard,
  • Fast,
  • Fast Plus, 
  • High Speed.

The DI2CS is a technology independent design and can be implemented in various process technologies.

Key features

  • Conforms to the latest 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)
  • Allows operation from a wide range of input clock frequencies
  • Support for reads, writes, burst reads, burst writes, and repeated start
  • 7-bit addressing
  • No programming required
  • Simple interface allows easy connection to target device e.g. memory, LCD display, pressure sensors etc.
  • Fully synthesizable
  • Static synchronous design
  • Positive edge clocking and no internal tri-states
  • Scan test ready
  • Available system interface wrappers:
    • AMBA – APB / AHB / AXI Bus
    • Altera Avalon Bus
    • Xilinx OPB Bus

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