The C28x-I2C module used in the application note has the following features:

• Compliance with the NXP Semiconductors I2C bus specification (version 2.1):
  • Support for 8-bit format transfers
  • 7-bit and 10-bit addressing modes
  • General call
  • START byte mode
  • Support for multiple master-transmitters and slave-receivers
  • Support for multiple slave-transmitters and master-receivers
  • Combined master transmit/receive and receive/transmit mode
  • Data transfer rate from 10 kbps up to 400 kbps (Fast-mode)
• Receive FIFO and Transmitter FIFO (16-deep x 8-bit FIFO)
• Supports two ePIE interrupts:
  • I2Cx Interrupt – Any of the below events can be configured to generate an I2Cx interrupt:
    • Transmit-data ready
    • Receive-data ready
    • Register-access ready
    • No-acknowledgment received
    • Arbitration lost
    • Stop condition detected
    • Addressed as slave
  • I2Cx_FIFO interrupts:
    • Transmit FIFO interrupt
    • Receive FIFO interrupt
• Module enable/disable capability
• Free data format mode