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AXI IIC Bus Interface

Product Description

This product specification defines the architecture, hardware (signal) interface, software (register) interface and parameterization options for the LogiCORE™ IP AXI IIC Bus Interface module. This module connects to the Advanced Microcontroller Bus Architecture (AMBA®) specification’s Advanced eXtensible Interface (AXI) and provides a low-speed, two-wire, serial bus interface to a large number of popular devices. AXI IIC supports all features, except high speed mode, of the Philips I2C-Bus Specification.

Key Features and Benefits

  • Compliant to industry standard I2C protocol
  • Register access through AXI4-Lite interface
  • Master or slave operation
  • Multi-master operation
  • Software selectable acknowledge bit
  • Arbitration lost interrupt with automatic mode switching from master to slave
  • Calling address identification interrupt with automatic mode switching from master to slave
  • START and STOP signal generation and detection


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