Home
3 PLIB Drivers
Peripheral Libraries (PLIB) may provide firmware portability, but in general provide only a non-portable interface to peripheral functionality, in the form of an API to support peripheral functionality.
3.9 I2C - Inter-Integrated Circuit

1 MCC Melody API Reference for AVR® MCU Families
Lists the Libraries, Drivers, PLIB Drivers and System Drivers which support the 8-bit AVR families of microcontrollers in MCC Melody.
2 Drivers
Drivers provide a portable functional interface to the functionalities of the peripheral. Provides an API supporting peripheral functionality.
3 PLIB Drivers
Peripheral Libraries (PLIB) may provide firmware portability, but in general provide only a non-portable interface to peripheral functionality, in the form of an API to support peripheral functionality.
- 3.1 AC - Analog Comparator
- 3.2 ADC - Analog to Digital Converter
- 3.3 CCL - Configurable Custom Logic
- 3.4 CFD - Clock Failure Detection
- 3.5 CRCSCAN - Cyclic Redundancy Check Scan
  Cyclic Redundancy Check Memory Scan
- 3.6 DAC - Digital-to-Analog Converter
- 3.7 EVSYS - Event System
- 3.8 ExtInt - External Interrupts
- 3.9 I2C - Inter-Integrated Circuit
  - 3.9.1 I2C
    I2C (also known as Two-Wire Interface (TWI))
  - 3.9.2 I2C with Dual Mode Operation
    I2C (also known as Two-Wire Interface (TWI)) with Dual Mode supporting simultaneous host and client operations
- 3.10 NVMCTRL - Nonvolatile Memory Controller
- 3.11 MVIO - Multi-Voltage I/O
- 3.12 OPAMP - Analog Signal Conditioning
- 3.13 SPI - Serial Peripheral Interface
- 3.14 Timers
- 3.15 USART - Universal Synchronous and Asynchronous Receiver and Transmitter
- 3.16 USB - Universal Serial Bus
- 3.17 VREF - Voltage Reference
- 3.18 WEX - Waveform Extension
- 3.19 ZCD - Zero Cross Detector
4 System Drivers
Provides system level core functionality, like Clock, Interrupt, Pins. Some of these can be device dependent.
5 Revision History
A concise summary of the changes for each version of the AVR API Reference.
Microchip Information

3.9 I2C - Inter-Integrated Circuit

The MCC Melody I2C Driver (Peripheral Library) generates API to support I2C-specific peripheral functionality on AVR target MCUs. In addition a portable API interface supports generic I2C Host and Client interfaces supporting the MCC Melody Component concepts both Configuration and Firmware portability.