37.1 I²C Features

The I²C supports the following modes and features:

• Modes
  • Host mode
  • Client mode
  • Multi-Host mode
• Features
  • Supports Standard mode (100 kHz), Fast mode (400 kHz) and Fast mode Plus (1 MHz) modes of operation
  • Dedicated Address, Receive, and Transmit buffers
  • Up to four unique Client addresses
  • General Call addressing
  • 7-bit and 10-bit addressing with optional masking
  • Interrupts for:
    • Start condition
    • Restart condition
    • Stop condition
    • Address match
    • Data Write
    • Acknowledge Status
    • NACK detection
    • Data Byte Count
    • Bus Collision
    • Bus Time-out
  • Clock Stretching for:
    • RX buffer full
    • TX buffer empty
    • Incoming address match
    • Data Write
    • Acknowledge Status
  • Bus Collision Detection with Arbitration
  • Bus Time-out Detection
    • Selectable clock sources
    • Clock prescaler
  • Selectable Serial Data (SDA) Hold Time
  • Dedicated I²C Pad (I/O) Control
    • Standard GPIO or I²C-specific slew rate control
    • Selectable I²C pull-up levels
    • I²C-specific, SMBus 2.0/3.0, or standard GPIO input threshold level selections
  • Integrated Direct Memory Access (DMA) support
  • Remappable pin locations using Peripheral Pin Select (PPS)