SPRU566S June   2003  – April 2024 SM320F28335-EP , TMS320C28341 , TMS320C28342 , TMS320C28343 , TMS320C28343-Q1 , TMS320C28344 , TMS320C28345 , TMS320C28346 , TMS320C28346-Q1 , TMS320F2800132 , TMS320F2800133 , TMS320F2800135 , TMS320F2800137 , TMS320F2800152-Q1 , TMS320F2800153-Q1 , TMS320F2800154-Q1 , TMS320F2800155 , TMS320F2800155-Q1 , TMS320F2800156-Q1 , TMS320F2800157 , TMS320F2800157-Q1 , TMS320F280021 , TMS320F280021-Q1 , TMS320F280023 , TMS320F280023-Q1 , TMS320F280023C , TMS320F280025 , TMS320F280025-Q1 , TMS320F280025C , TMS320F280025C-Q1 , TMS320F280033 , TMS320F280034 , TMS320F280034-Q1 , TMS320F280036-Q1 , TMS320F280036C-Q1 , TMS320F280037 , TMS320F280037-Q1 , TMS320F280037C , TMS320F280037C-Q1 , TMS320F280038-Q1 , TMS320F280038C-Q1 , TMS320F280039 , TMS320F280039-Q1 , TMS320F280039C , TMS320F280039C-Q1 , TMS320F280040-Q1 , TMS320F280040C-Q1 , TMS320F280041 , TMS320F280041-Q1 , TMS320F280041C , TMS320F280041C-Q1 , TMS320F280045 , TMS320F280048-Q1 , TMS320F280048C-Q1 , TMS320F280049 , TMS320F280049-Q1 , TMS320F280049C , TMS320F280049C-Q1 , TMS320F2801 , TMS320F2801-Q1 , TMS320F28015 , TMS320F28016 , TMS320F28016-Q1 , TMS320F2802 , TMS320F2802-Q1 , TMS320F28020 , TMS320F280200 , TMS320F28021 , TMS320F28022 , TMS320F28022-Q1 , TMS320F280220 , TMS320F28023 , TMS320F28023-Q1 , TMS320F280230 , TMS320F28026 , TMS320F28026-Q1 , TMS320F28026F , TMS320F28027 , TMS320F28027-Q1 , TMS320F280270 , TMS320F28027F , TMS320F28027F-Q1 , TMS320F28030 , TMS320F28030-Q1 , TMS320F28031 , TMS320F28031-Q1 , TMS320F28032 , TMS320F28032-Q1 , TMS320F28033 , TMS320F28033-Q1 , TMS320F28034 , TMS320F28034-Q1 , TMS320F28035 , TMS320F28035-Q1 , TMS320F28044 , TMS320F28050 , TMS320F28051 , TMS320F28052 , TMS320F28052-Q1 , TMS320F28052F , TMS320F28052F-Q1 , TMS320F28052M , TMS320F28052M-Q1 , TMS320F28053 , TMS320F28054 , TMS320F28054-Q1 , TMS320F28054F , TMS320F28054F-Q1 , TMS320F28054M , TMS320F28054M-Q1 , TMS320F28055 , TMS320F2806 , TMS320F2806-Q1 , TMS320F28062 , TMS320F28062-Q1 , TMS320F28062F , TMS320F28062F-Q1 , TMS320F28063 , TMS320F28064 , TMS320F28065 , TMS320F28066 , TMS320F28066-Q1 , TMS320F28067 , TMS320F28067-Q1 , TMS320F28068F , TMS320F28068M , TMS320F28069 , TMS320F28069-Q1 , TMS320F28069F , TMS320F28069F-Q1 , TMS320F28069M , TMS320F28069M-Q1 , TMS320F28075 , TMS320F28075-Q1 , TMS320F2808 , TMS320F2808-Q1 , TMS320F2809 , TMS320F2810 , TMS320F2810-Q1 , TMS320F2811 , TMS320F2811-Q1 , TMS320F2812 , TMS320F2812-Q1 , TMS320F28232 , TMS320F28232-Q1 , TMS320F28234 , TMS320F28234-Q1 , TMS320F28235 , TMS320F28235-Q1 , TMS320F28332 , TMS320F28333 , TMS320F28334 , TMS320F28335 , TMS320F28335-Q1 , TMS320F28374D , TMS320F28374S , TMS320F28375D , TMS320F28375S , TMS320F28375S-Q1 , TMS320F28376D , TMS320F28376S , TMS320F28377D , TMS320F28377D-EP , TMS320F28377D-Q1 , TMS320F28377S , TMS320F28377S-Q1 , TMS320F28379D , TMS320F28379D-Q1 , TMS320F28379S , TMS320F28384D , TMS320F28384S , TMS320F28386D , TMS320F28386S , TMS320F28388D , TMS320F28388S , TMS320F28P550SJ , TMS320F28P559SJ-Q1 , TMS320F28P650DH , TMS320F28P650DK , TMS320F28P650SH , TMS320F28P650SK , TMS320F28P659DH-Q1 , TMS320F28P659DK-Q1 , TMS320F28P659SH-Q1 , TMS320R2811 , TMS320R2812

 

  1.   1
  2.   Read This First
    1.     About This Manual
    2.     Related Documentation from Texas Instruments
    3.     Support Resources
    4.     Trademarks
  3. 1Abbreviations
    1. 1.1 Gen 1 Device Abbreviations
    2. 1.2 Gen 2 Device Abbreviations
    3. 1.3 Gen 3 Device Abbreviations
  4. 2Peripherals Available Per Device
    1. 2.1 Gen 1 Device Peripherals
      1. 2.1.1 TMS320x280x, TMS320x2801x Peripherals
      2. 2.1.2 TMS320x281x Peripherals
      3. 2.1.3 TMS320F2823x Peripherals
      4. 2.1.4 TMS320F2833x Peripherals
      5. 2.1.5 TMS320x2834x Peripherals
    2. 2.2 Gen 2 Device Peripherals
      1. 2.2.1 TMS320F2802x Peripherals
      2. 2.2.2 TMS320F2803x Peripherals
      3. 2.2.3 TMS320x2804x Peripherals
      4. 2.2.4 TMS320F2805x Peripherals
      5. 2.2.5 TMS320F2806x Peripherals
      6. 2.2.6 TMS320F28M35x Peripherals
      7. 2.2.7 TMS320F28M36x Peripherals
    3. 2.3 Gen 3 Device Peripherals
      1. 2.3.1  TMS320F2807x Peripherals
      2. 2.3.2  TMS320F28002x Peripherals
      3. 2.3.3  TMS320F28003x Peripherals
      4. 2.3.4  TMS320F28004x Peripherals
      5. 2.3.5  TMS320F280013x Peripherals
      6. 2.3.6  TMS320F280015x Peripherals
      7. 2.3.7  TMS320F2837xD Peripherals
      8. 2.3.8  TMS320F2837xS Peripherals
      9. 2.3.9  TMS320F2838x Peripherals
      10. 2.3.10 TMS320F28P55x Peripherals
      11. 2.3.11 TMS320F28P65x Peripherals
  5. 3Peripheral Descriptions
    1. 3.1 Coprocessor and C28x Extended Instruction Sets
      1. 3.1.1 Control Law Accelerator (CLA) Module
      2. 3.1.2 Floating-Point Unit (FPU)
      3. 3.1.3 Viterbi, Complex Math, and CRC Unit (VCU)
      4. 3.1.4 Cyclic Redundancy Check (VCRC) Module
      5. 3.1.5 Trigonometric Math Unit (TMU)
    2. 3.2 System Peripherals
      1. 3.2.1  Advance Encryption Standard (AES) Accelerator Module
      2. 3.2.2  Background CRC-32 (BGCRC) Module
      3. 3.2.3  Boot ROM
      4. 3.2.4  Direct Memory Access (DMA) Module
      5. 3.2.5  Dual-Clock Comparator (DCC)
      6. 3.2.6  Embedded Pattern Generator (EPG) Module
      7. 3.2.7  Embedded Real-time Analysis and Diagnostic (ERAD) Module
      8. 3.2.8  External Memory Interface (EMIF)
      9. 3.2.9  External Peripheral Interface (EPI)
      10. 3.2.10 Event Manager (EV) Module
      11. 3.2.11 External Interface (XINTF) Module
      12. 3.2.12 Hardware Built-in Self-Test (HWBIST) Module
      13. 3.2.13 Host Interface Controller (HIC) Module
      14. 3.2.14 Lockstep Comparator Module (LCM)
      15. 3.2.15 Memory Power On Self-Test (MPOST) Module
      16. 3.2.16 Micro Cyclic Redundancy Check (µCRC) Module
      17. 3.2.17 Neural-Network Processing Unit (NNPU)
      18. 3.2.18 Watchdog Module
      19. 3.2.19 NMI Watchdog Module
      20. 3.2.20 System Control and Interrupts
    3. 3.3 Control Peripherals
      1. 3.3.1  Analog-to-Digital Converter (ADC) Modules
        1. 3.3.1.1 Analog-to-Digital Converter (ADC) Module
        2. 3.3.1.2 Analog-to-Digital Converter (ADC) Wrapper Module
      2. 3.3.2  Configurable Logic Block (CLB) Module
      3. 3.3.3  Comparator (COMP) Module
      4. 3.3.4  Comparator Subsystem (CMPSS) Module
      5. 3.3.5  Comparator Subsystem LITE (CMPSS_LITE) Module
      6. 3.3.6  Digital-to-Analog Converter (DAC) Module
      7. 3.3.7  Enhanced Capture (eCAP) Module
      8. 3.3.8  Enhanced Pulse Width Modulator (ePWM) Module
      9. 3.3.9  Enhanced Quadrature Encoder Pulse (eQEP) Module
      10. 3.3.10 High-Resolution Capture (HRCAP) Module
      11. 3.3.11 InstaSPIN™ Solutions
        1. 3.3.11.1 InstaSPIN-FOC™
        2. 3.3.11.2 InstaSPIN-MOTION™
      12. 3.3.12 Programmable Gain Amplifier (PGA) Module
      13. 3.3.13 Sigma Delta Filter Module (SDFM)
    4. 3.4 Communication Peripherals
      1. 3.4.1  Controller Area Network (DCAN) Module
      2. 3.4.2  Enhanced Controller Area Network (eCAN) Module
      3. 3.4.3  EtherCAT® SubordinateDevice Controller (ESC)
      4. 3.4.4  Ethernet Media Access Controller (EMAC) Module
      5. 3.4.5  Fast Serial Interface (FSI) Module
      6. 3.4.6  C28x Inter-Integrated Circuit (I2C) Module
      7. 3.4.7  M3 Inter-Intergrated Circuit (I2C) Module Type Description
      8. 3.4.8  Local Interconnect Network (LIN) Module
      9. 3.4.9  Modular Controller Area Network (MCAN)
      10. 3.4.10 Multichannel Buffered Serial Port (McBSP) Module
      11. 3.4.11 Power Management Bus (PMBus) Module
      12. 3.4.12 Serial Communications Interface (SCI) Module
      13. 3.4.13 Serial Peripheral Interface (SPI) Module
      14. 3.4.14 Synchronous Serial Interface (SSI) Module
      15. 3.4.15 Universal Asynchronous Receiver/Transmitter (UART) Module
      16. 3.4.16 Universal Parallel Port (uPP) Module
      17. 3.4.17 Universal Serial Bus (USB) Module
  6. 4Revision History

3.4.6 C28x Inter-Integrated Circuit (I2C) Module

The C28x Inter-Integrated Circuit (I2C) module provides an interface between one of these DSPs and devices compliant with Philips Semiconductors Inter-IC bus (I2C-bus) specification version 2.1 and connected by way of an I2C-bus. External components attached to this 2-wire serial bus can transmit/receive 1- to 8-bit data to/from the DSP through the I2C module. This guide assumes the reader is familiar with the I2C-bus specification.

The C28x I2C guides are:

For devices not listed above, refer to the device-specific technical reference manual.

Table 3-43 lists the C28x I2C types, including device-specific differences within each type.

Table 3-43 C28x Inter-Integrated Circuit (I2C) Module Type Description
Type Description Devices Covered Device-Specific Options
0 Original C28x I2C Module Type. Not software compatible with M3 I2C. 280x, 2801x, 2804x, 2807x, 2823x, 2833x, 2834x, 2837xD, 2837xS, M35x, M36x 16-level FIFO
2802x, 2803x, 2805x, 2806x 4-level FIFO
1 Fixed the bug from Type-0 related to timing of XRDY transmit interrupt. 28002x, 28003x, 28004x, 280013x, 280015x, 2838x, 28P65x 16-level FIFO
2 Added Extended clock stretching and Manual clock stretching. 28P55x 16-level FIFO