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This External I2C IP basically has the same behavior like 8051's internal I2C. The IP provides the interface to EMIF (External Memory Interface) in CME_M5/CME_HR3 or AHB interface in CME_M7 and can be programmed to work as master or as slave.


  • Comply to Philips I2C bus specification Support multiple bit rate
  • - standard mode, up to 100kbit/s
  • - fast mode, up to 400kbit/s
  • - user-defined bit rate Operating modes
  • - Master Transmitter Mode
  • - Master Receiver Mode
  • - Slave Transmitter Mode
  • - Slave Receiver Mode Support 7-bit slave address

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