I2C Controller

DTI I2C controller provides the logic consistent with NXP I2C specification to support the communication of low-speed integrated circuits through I2C bus. The IP facilitates software controllable by application processor through industry-standard AMBA interface. The bus interface is flexible and easily integrated into APB, AHB or AXI system bus.

Download Product Overview

Features Design Status
  • Master only operation
  • Slave only operation
  • Master and slave operation
  • 5 speed modes:
    • Standard speed mode (up to 100 Kbps)
    • Fast speed mode (up to 400 Kbps)
    • Fast speed mode plus (up to 1 Mbps)
    • High speed mode (up to 3.4 Mbps)
    • Ultra-fast speed mode (up to 5 Mbps)
  • Singled or combined message protocol
  • 7-bit or 10-bit addressing
  • Input spike suppression
  • Clock synchronization
  • Slave clock stretching
  • Bus arbitration
  • General call address
  • Bus clear operation
  • Read device ID
  • Programmable timing parameters, including (tLOW), (tHIGH), (tHD;STA), (tSU;STA), (tHD;DAT), (tSU,STO), (tBUF), and (tSP)
  • Programmable FIFO watermarks
  • Interrupt interface
  • DMA hand-shaking interface
  • Software interface consistent with AMBA Advanced Peripheral Bus (APB), configurable bus width 8/16/32
  • Two wire serial interface up to 12.5 MHz using Push-Pull
  • Legacy I2C Device co-existence on the same Bus (with some limitations)
  • Dynamic Addressing while supporting Static Addressing for Legacy I2C Devices
  • Legacy I2C messaging
  • I2C-like Single Data Rate Messaging (SDR)
  • Optional High Data Rate Messaging Modes (HDR-DDR, HDR-TSL, HDR-TSP)
  • Support for Multi-master (transferring the ownership of the bus to a Secondary Master if Present)
  • Reception of In-band Interrupt Support from the I3C Slave devices
  • Reception of Hot-Join from newly added I3C Slave devices
  • Synchronous Timing Support and Asynchronous Time Stamping
  • Master only operation
  • Slave only operation
  • Master and slave operation

Data Sheets are available under NDA