26.1 Features

  • Bidirectional, Two-Wire Communication Interface
  • Philips I2C compatible:
    • Standard mode (Sm/100 kHz with slew-rate limited output)
    • Fast mode (Fm/400 kHz with slew-rate limited output)
    • Fast mode plus (Fm+/1 MHz with ×10 output drive strength)
  • System Management Bus (SMBus) Compatible (100 kHz with Slew-Rate Limited Output):
    • Support arbitration between start/repeated start and data bit
    • Slave arbitration allows support for the Address Resolution Protocol (ARP)
    • Configurable SMBus Layer 1 time-outs in hardware
  • Independent Master and Slave Operation:
    • Single or multi-master bus operation with full arbitration support
  • Flexible Slave Address Match Hardware Operating in All Sleep Modes, Including Power-Down:
    • 7-bit and general call address recognition
    • 10-bit addressing support in collaboration with software
    • Address mask register allows address range masking - alternatively, it can be used as a secondary address match
    • Optional software address recognition for an unlimited number of addresses
  • Input Filter For Bus Noise Suppression