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

3.3.8 Enhanced Pulse Width Modulator (ePWM) Module

The Enhanced Pulse Width Modulator (ePWM) module controls many of the power-related systems found in both commercial and industrial equipments. The main systems include digital motor control, switch mode power supply control, uninterruptible power supplies (UPS), and other forms of power conversion. The PWM peripheral performs a DAC function, where the duty cycle is equivalent to a DAC analog value; sometimes referred to as a Power DAC.

The ePWM guides are:

The High-Resolution Pulse Width Modulator (HRPWM) module extends the time resolution capabilities of the conventionally derived digital pulse width modulator (PWM). HRPWM is typically used when PWM resolution falls below approximately 9-10 bits.

The HRPWM guides are:

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

Table 3-32 lists the ePWM types, including device-specific differences within each type.

Table 3-32 Enhanced Pulse Width Modulator (ePWM) Module Type Description
Type Description Devices Covered Device-Specific Options
0 Original ePWM Module Type and HRPWM Module Type 280x(1), 2801x Time-base synchronization scheme 1:
ePWM1 SYNC out is applied to eCAP1 and ePWM2. All other ePWM modules have the SYNCIN signals applied from the ePWM module numerically preceding them.
2804x, 2809 Time-base synchronization scheme 2:
Two ePWM pinouts are possible: A-channel only or 280x compatible. If the ePWM pinout is configured for A-channel only mode, ePWM1 SYNC out is applied to eCAP1, ePWM2, ePWM5, ePWM9, and ePWM13. All other ePWM modules have the SYNCIN signals applied from the ePWM module numerically preceding them.
If the ePWM pinout is configured for 280x-compatible mode, synchronization scheme 1 is used.
2823x, 2833x, 28234 Time-base synchronization scheme 3:
ePWM1 SYNC out is applied to eCAP1, ePWM2, and ePWM4. All other ePWM modules have the SYNCINs applied from the ePWM module numerically preceding them.
1 Doubled deadband resolution, interrupts, and ADC SOC can be generated on both CTR = 0 or CTR = PRD. Added digital compare submodule and added hooks for high-resolution period. 2805x No HRPWM support.
2802x, 2803x, 2806x Added high-resolution period support, added option to select high-resolution B output, added automatic micro-step conversion.
2 Expanded Register set, added High-Resolution to Dead-band RED and FED, added Dead-band generator module enhancements. Added HRPWM capability to ePWMxB channels. Added enhancements to Counter Compare Module, Event Trigger Module, and Digital Compare Module. Supports Simultaneous writes to TBPRD and CMPx Registers. Added Shadow to Active Load on SYNC of TBPRD and CMP registers. Added independent high-resolution control on B-channel output, added dead band control for falling and rising edge delay, added additional delay lines per ePWM module, added SYNC pulse timings. M35x, M36x –
3 This type is not used. – –
4 Remapped address space for ease of use. Added Delayed Trip functionality. Dead-band Generator Module enhancements. One shot and Global reload of Registers, Trip Zone Module Enhancements, and PWM SYNC related enhancements. Remapped address space. Added global shadow-to-active reload. Added one-shot shadow-to-active reload. 2807x, 28004x, 2837xD, 2837xS –
Enhancements to enable independent PWM action configuration on a CBC and an OST trip event. Changes to enable the PWM to work at the maximum SYSCLK frequency. Changes to enable a simplified SYNC scheme. Addition of DCA/BEVTs as SYNCOUT sources. One-shot syncout synchronized to one-shot global load of shadow registers. Individual HRPWM module clocked from the respective EPWMxCLK. Separate clock to HRCAL. Clocks to individual HRPWM modules can be hooked up to the respective ePWMs. 28002x, 28003x, 280013x, 280015x, 2838x, 28P55x –
5 Added diode emulation, minimum deadband, illegal combination logic. 28P65x –
(1) The time-base synchronization scheme 1 is not available in the TMS320F2809 part.