SPRUIW9C October   2021  – March 2024 TMS320F280033 , TMS320F280034 , TMS320F280034-Q1 , TMS320F280036-Q1 , TMS320F280036C-Q1 , TMS320F280037 , TMS320F280037-Q1 , TMS320F280037C , TMS320F280037C-Q1 , TMS320F280038-Q1 , TMS320F280038C-Q1 , TMS320F280039 , TMS320F280039-Q1 , TMS320F280039C , TMS320F280039C-Q1

 

  1.   1
  2.   Read This First
    1.     About This Manual
    2.     Notational Conventions
    3.     Glossary
    4.     Related Documentation From Texas Instruments
    5.     Support Resources
    6.     Trademarks
  3. 1 C2000™ Microcontrollers Software Support
    1. 1.1 Introduction
    2. 1.2 C2000Ware Structure
    3. 1.3 Documentation
    4. 1.4 Devices
    5. 1.5 Libraries
    6. 1.6 Code Composer Studio™ Integrated Development Environment (IDE)
    7. 1.7 SysConfig and PinMUX Tool
  4. 2 C28x Processor
    1. 2.1 Introduction
    2. 2.2 C28X Related Collateral
    3. 2.3 Features
    4. 2.4 Floating-Point Unit
    5. 2.5 Trigonometric Math Unit (TMU)
    6. 2.6 VCRC Unit
  5. 3 System Control and Interrupts
    1. 3.1  Introduction
      1. 3.1.1 SYSCTL Related Collateral
      2. 3.1.2 LOCK Protection on System Configuration Registers
      3. 3.1.3 EALLOW Protection
    2. 3.2  Power Management
    3. 3.3  Device Identification and Configuration Registers
    4. 3.4  Resets
      1. 3.4.1  Reset Sources
      2. 3.4.2  External Reset (XRS)
      3. 3.4.3  Simulate External Reset (SIMRESET.XRS)
      4. 3.4.4  Power-On Reset (POR)
      5. 3.4.5  Brown-Out-Reset (BOR)
      6. 3.4.6  Debugger Reset (SYSRS)
      7. 3.4.7  Simulate CPU Reset (SIMRESET.CPU1RS)
      8. 3.4.8  Watchdog Reset (WDRS)
      9. 3.4.9  Hardware BIST Reset (HWBISTRS)
      10. 3.4.10 NMI Watchdog Reset (NMIWDRS)
      11. 3.4.11 DCSM Safe Code Copy Reset (SCCRESET)
    5. 3.5  Peripheral Interrupts
      1. 3.5.1 Interrupt Concepts
      2. 3.5.2 Interrupt Architecture
        1. 3.5.2.1 Peripheral Stage
        2. 3.5.2.2 PIE Stage
        3. 3.5.2.3 CPU Stage
      3. 3.5.3 Interrupt Entry Sequence
      4. 3.5.4 Configuring and Using Interrupts
        1. 3.5.4.1 Enabling Interrupts
        2. 3.5.4.2 Handling Interrupts
        3. 3.5.4.3 Disabling Interrupts
        4. 3.5.4.4 Nesting Interrupts
        5. 3.5.4.5 Vector Address Validity Check
      5. 3.5.5 PIE Channel Mapping
        1. 3.5.5.1 PIE Interrupt Priority
          1. 3.5.5.1.1 Channel Priority
          2. 3.5.5.1.2 Group Priority
      6. 3.5.6 Vector Tables
    6. 3.6  Exceptions and Non-Maskable Interrupts
      1. 3.6.1 Configuring and Using NMIs
      2. 3.6.2 Emulation Considerations
      3. 3.6.3 NMI Sources
        1. 3.6.3.1 Missing Clock Detection
        2. 3.6.3.2 RAM Uncorrectable Error
        3. 3.6.3.3 Flash Uncorrectable ECC Error
        4. 3.6.3.4 CPU HWBIST Error
        5. 3.6.3.5 Software-Forced Error
      4. 3.6.4 CRC Fail
      5. 3.6.5 ERAD NMI
      6. 3.6.6 Illegal Instruction Trap (ITRAP)
      7. 3.6.7 Error Pin
    7. 3.7  Clocking
      1. 3.7.1  Clock Sources
        1. 3.7.1.1 Primary Internal Oscillator (INTOSC2)
        2. 3.7.1.2 Backup Internal Oscillator (INTOSC1)
        3. 3.7.1.3 Auxiliary Clock Input (AUXCLKIN)
        4. 3.7.1.4 External Oscillator (XTAL)
      2. 3.7.2  Derived Clocks
        1. 3.7.2.1 Oscillator Clock (OSCCLK)
        2. 3.7.2.2 System PLL Output Clock (PLLRAWCLK)
      3. 3.7.3  Device Clock Domains
        1. 3.7.3.1 System Clock (PLLSYSCLK)
        2. 3.7.3.2 CPU Clock (CPUCLK)
        3. 3.7.3.3 CPU Subsystem Clock (SYSCLK and PERx.SYSCLK)
        4. 3.7.3.4 Low-Speed Peripheral Clock (LSPCLK and PERx.LSPCLK)
        5. 3.7.3.5 CAN Bit Clock
        6. 3.7.3.6 CPU Timer2 Clock (TIMER2CLK)
      4. 3.7.4  XCLKOUT
      5. 3.7.5  Clock Connectivity
      6. 3.7.6  Clock Source and PLL Setup
      7. 3.7.7  Using an External Crystal or Resonator
        1. 3.7.7.1 X1/X2 Precondition Circuit
      8. 3.7.8  Using an External Oscillator
      9. 3.7.9  Choosing PLL Settings
      10. 3.7.10 System Clock Setup
      11. 3.7.11 SYS PLL Bypass
      12. 3.7.12 Clock (OSCCLK) Failure Detection
        1. 3.7.12.1 Missing Clock Detection
    8. 3.8  32-Bit CPU Timers 0/1/2
    9. 3.9  Watchdog Timer
      1. 3.9.1 Servicing the Watchdog Timer
      2. 3.9.2 Minimum Window Check
      3. 3.9.3 Watchdog Reset or Watchdog Interrupt Mode
      4. 3.9.4 Watchdog Operation in Low-Power Modes
      5. 3.9.5 Emulation Considerations
    10. 3.10 Low-Power Modes
      1. 3.10.1 Clock-Gating Low-Power Modes
      2. 3.10.2 IDLE
      3. 3.10.3 STANDBY
      4. 3.10.4 HALT
      5. 3.10.5 Flash Power-down Considerations
    11. 3.11 Memory Controller Module
      1. 3.11.1  Dedicated RAM (Mx RAM)
      2. 3.11.2  Local Shared RAM (LSx RAM)
      3. 3.11.3  Global Shared RAM (GSx RAM)
      4. 3.11.4  CLA-CPU Message RAM
      5. 3.11.5  CLA-DMA Message RAM
      6. 3.11.6  Access Arbitration
      7. 3.11.7  Access Protection
        1. 3.11.7.1 CPU Fetch Protection
        2. 3.11.7.2 CPU Write Protection
        3. 3.11.7.3 CPU Read Protection
        4. 3.11.7.4 CLA Fetch Protection
        5. 3.11.7.5 CLA Read Protection
        6. 3.11.7.6 CLA Write Protection
        7. 3.11.7.7 HIC Write Protection
        8. 3.11.7.8 DMA Write Protection
      8. 3.11.8  Memory Error Detection and Correction, and Error Handling
        1. 3.11.8.1 Error Detection and Correction
        2. 3.11.8.2 Error Handling
      9. 3.11.9  Application Test Hooks for Error Detection and Correction
      10. 3.11.10 RAM Initialization
    12. 3.12 JTAG
      1. 3.12.1 JTAG Noise and TAP_STATUS
    13. 3.13 Live Firmware Update
      1. 3.13.1 LFU Background
      2. 3.13.2 LFU Switchover Steps
      3. 3.13.3 Device Features Supporting LFU
        1. 3.13.3.1 Multi-Bank Flash
        2. 3.13.3.2 PIE Vector Table Swap
        3. 3.13.3.3 LS0/LS1 RAM Memory Swap
          1. 3.13.3.3.1 Applicability to CLA LFU
      4. 3.13.4 LFU Switchover
      5. 3.13.5 LFU Resources
    14. 3.14 System Control Register Configuration Restrictions
    15. 3.15 Software
      1. 3.15.1 INTERRUPT Examples
        1. 3.15.1.1 External Interrupts (ExternalInterrupt)
        2. 3.15.1.2 Multiple interrupt handling of I2C, SCI & SPI Digital Loopback
        3. 3.15.1.3 CPU Timer Interrupt Software Prioritization
        4. 3.15.1.4 EPWM Real-Time Interrupt
      2. 3.15.2 SYSCTL Examples
        1. 3.15.2.1 Missing clock detection (MCD)
        2. 3.15.2.2 XCLKOUT (External Clock Output) Configuration
      3. 3.15.3 TIMER Examples
        1. 3.15.3.1 CPU Timers
        2. 3.15.3.2 CPU Timers
      4. 3.15.4 LPM Examples
        1. 3.15.4.1 Low Power Modes: Device Idle Mode and Wakeup using GPIO
        2. 3.15.4.2 Low Power Modes: Device Idle Mode and Wakeup using Watchdog
        3. 3.15.4.3 Low Power Modes: Device Standby Mode and Wakeup using GPIO
        4. 3.15.4.4 Low Power Modes: Device Standby Mode and Wakeup using Watchdog
        5. 3.15.4.5 Low Power Modes: Halt Mode and Wakeup using GPIO
        6. 3.15.4.6 Low Power Modes: Halt Mode and Wakeup
      5. 3.15.5 MEMCFG Examples
        1. 3.15.5.1 Correctable & Uncorrectable Memory Error Handling
      6. 3.15.6 WATCHDOG Examples
        1. 3.15.6.1 Watchdog
    16. 3.16 System Control Registers
      1. 3.16.1  SYSCTRL Base Address Table
      2. 3.16.2  ACCESS_PROTECTION_REGS Registers
      3. 3.16.3  CLK_CFG_REGS Registers
      4. 3.16.4  CPU_SYS_REGS Registers
      5. 3.16.5  CPUTIMER_REGS Registers
      6. 3.16.6  DEV_CFG_REGS Registers
      7. 3.16.7  DMA_CLA_SRC_SEL_REGS Registers
      8. 3.16.8  MEM_CFG_REGS Registers
      9. 3.16.9  MEMORY_ERROR_REGS Registers
      10. 3.16.10 NMI_INTRUPT_REGS Registers
      11. 3.16.11 PERIPH_AC_REGS Registers
      12. 3.16.12 PIE_CTRL_REGS Registers
      13. 3.16.13 SYNC_SOC_REGS Registers
      14. 3.16.14 SYS_STATUS_REGS Registers
      15. 3.16.15 TEST_ERROR_REGS Registers
      16. 3.16.16 UID_REGS Registers
      17. 3.16.17 WD_REGS Registers
      18. 3.16.18 XINT_REGS Registers
      19. 3.16.19 LFU_REGS Registers
      20. 3.16.20 Register to Driverlib Function Mapping
        1. 3.16.20.1 CPUTIMER Registers to Driverlib Functions
        2. 3.16.20.2 DCSM Registers to Driverlib Functions
        3. 3.16.20.3 MEMCFG Registers to Driverlib Functions
        4. 3.16.20.4 NMI Registers to Driverlib Functions
        5. 3.16.20.5 PIE Registers to Driverlib Functions
        6. 3.16.20.6 SYSCTL Registers to Driverlib Functions
        7. 3.16.20.7 WWD Registers to Driverlib Functions
        8. 3.16.20.8 XINT Registers to Driverlib Functions
  6. 4 ROM Code and Peripheral Booting
    1. 4.1  Introduction
    2. 4.2  ROM Related Collateral
    3. 4.3  Device Boot Sequence
    4. 4.4  Device Boot Modes
      1. 4.4.1 Default Boot Modes
      2. 4.4.2 Custom Boot Modes
    5. 4.5  Device Boot Configurations
      1. 4.5.1 Configuring Boot Mode Pins
      2. 4.5.2 Configuring Boot Mode Table Options
      3. 4.5.3 Boot Mode Example Use Cases
        1. 4.5.3.1 Zero Boot Mode Select Pins
        2. 4.5.3.2 One Boot Mode Select Pin
        3. 4.5.3.3 Three Boot Mode Select Pins
    6. 4.6  Device Boot Flow Diagrams
      1. 4.6.1 Boot Flow
      2. 4.6.2 Emulation Boot Flow
      3. 4.6.3 Standalone Boot Flow
    7. 4.7  Device Reset and Exception Handling
      1. 4.7.1 Reset Causes and Handling
      2. 4.7.2 Exceptions and Interrupts Handling
    8. 4.8  Boot ROM Description
      1. 4.8.1  Boot ROM Configuration Registers
        1. 4.8.1.1 GPREG2 Usage and MPOST Configuration
      2. 4.8.2  Entry Points
      3. 4.8.3  Wait Points
      4. 4.8.4  Secure Flash Boot
        1. 4.8.4.1 Secure Flash CPU1 Linker File Example
      5. 4.8.5  Firmware Update (FWU) Flash Boot
      6. 4.8.6  Memory Maps
        1. 4.8.6.1 Boot ROM Memory Maps
        2. 4.8.6.2 CLA Data ROM Memory Maps
        3. 4.8.6.3 Reserved RAM Memory Maps
      7. 4.8.7  ROM Tables
      8. 4.8.8  Boot Modes and Loaders
        1. 4.8.8.1 Boot Modes
          1. 4.8.8.1.1 Flash Boot
          2. 4.8.8.1.2 RAM Boot
          3. 4.8.8.1.3 Wait Boot
        2. 4.8.8.2 Bootloaders
          1. 4.8.8.2.1 SCI Boot Mode
          2. 4.8.8.2.2 SPI Boot Mode
          3. 4.8.8.2.3 I2C Boot Mode
          4. 4.8.8.2.4 Parallel Boot Mode
          5. 4.8.8.2.5 CAN Boot Mode
          6. 4.8.8.2.6 CAN-FD Boot Mode
      9. 4.8.9  GPIO Assignments
      10. 4.8.10 Secure ROM Function APIs
      11. 4.8.11 Clock Initializations
      12. 4.8.12 Boot Status Information
        1. 4.8.12.1 Booting Status
        2. 4.8.12.2 Boot Mode and MPOST (Memory Power On Self-Test) Status
      13. 4.8.13 ROM Version
    9. 4.9  Application Notes for Using the Bootloaders
      1. 4.9.1 Bootloader Data Stream Structure
        1. 4.9.1.1 Data Stream Structure 8-bit
      2. 4.9.2 The C2000 Hex Utility
        1. 4.9.2.1 HEX2000.exe Command Syntax
    10. 4.10 Software
      1. 4.10.1 BOOT Examples
  7. 5 Dual Code Security Module (DCSM)
    1. 5.1 Introduction
      1. 5.1.1 DCSM Related Collateral
    2. 5.2 Functional Description
      1. 5.2.1 CSM Passwords
      2. 5.2.2 Emulation Code Security Logic (ECSL)
      3. 5.2.3 CPU Secure Logic
      4. 5.2.4 Password Lock
      5. 5.2.5 JTAGLOCK
      6. 5.2.6 Link Pointer and Zone Select
      7. 5.2.7 C Code Example to Get Zone Select Block Addr for Zone1
    3. 5.3 Flash and OTP Erase/Program
    4. 5.4 Secure Copy Code
    5. 5.5 SecureCRC
    6. 5.6 CSM Impact on Other On-Chip Resources
    7. 5.7 Incorporating Code Security in User Applications
      1. 5.7.1 Environments That Require Security Unlocking
      2. 5.7.2 CSM Password Match Flow
      3. 5.7.3 C Code Example to Unsecure C28x Zone1
      4. 5.7.4 C Code Example to Resecure C28x Zone1
      5. 5.7.5 Environments That Require ECSL Unlocking
      6. 5.7.6 ECSL Password Match Flow
      7. 5.7.7 ECSL Disable Considerations for any Zone
        1. 5.7.7.1 C Code Example to Disable ECSL for C28x Zone1
      8. 5.7.8 Device Unique ID
    8. 5.8 Software
      1. 5.8.1 DCSM Examples
        1. 5.8.1.1 Empty DCSM Tool Example
    9. 5.9 DCSM Registers
      1. 5.9.1 DCSM Base Address Table
      2. 5.9.2 DCSM_Z1_REGS Registers
      3. 5.9.3 DCSM_Z2_REGS Registers
      4. 5.9.4 DCSM_COMMON_REGS Registers
      5. 5.9.5 DCSM_Z1_OTP Registers
      6. 5.9.6 DCSM_Z2_OTP Registers
  8. 6 Flash Module
    1. 6.1  Introduction to Flash and OTP Memory
      1. 6.1.1 FLASH Related Collateral
      2. 6.1.2 Features
      3. 6.1.3 Flash Tools
      4. 6.1.4 Default Flash Configuration
    2. 6.2  Flash Bank, OTP, and Pump
    3. 6.3  Flash Module Controller (FMC)
    4. 6.4  Flash and OTP Memory Power-Down Modes and Wakeup
    5. 6.5  Active Grace Period
    6. 6.6  Flash and OTP Memory Performance
    7. 6.7  Flash Read Interface
      1. 6.7.1 C28x-FMC Flash Read Interface
        1. 6.7.1.1 Standard Read Mode
        2. 6.7.1.2 Prefetch Mode
          1. 6.7.1.2.1 Data Cache
    8. 6.8  Flash Erase and Program
      1. 6.8.1 Erase
      2. 6.8.2 Program
      3. 6.8.3 Verify
    9. 6.9  Error Correction Code (ECC) Protection
      1. 6.9.1 Single-Bit Data Error
      2. 6.9.2 Uncorrectable Error
      3. 6.9.3 SECDED Logic Correctness Check
    10. 6.10 Reserved Locations Within Flash and OTP Memory
    11. 6.11 Migrating an Application from RAM to Flash
    12. 6.12 Procedure to Change the Flash Control Registers
    13. 6.13 Software
      1. 6.13.1 FLASH Examples
        1. 6.13.1.1 Flash Programming with AutoECC, DataAndECC, DataOnly and EccOnly
        2. 6.13.1.2 Flash ECC Test Mode
        3. 6.13.1.3 Boot Source Code
        4. 6.13.1.4 Erase Source Code
        5. 6.13.1.5 Live DFU Command Functionality
        6. 6.13.1.6 Verify Source Code
        7. 6.13.1.7 SCI Boot Mode Routines
        8. 6.13.1.8 Flash Programming Solution using SCI
    14. 6.14 Flash Registers
      1. 6.14.1 FLASH Base Address Table
      2. 6.14.2 FLASH_CTRL_REGS Registers
      3. 6.14.3 FLASH_ECC_REGS Registers
      4. 6.14.4 FLASH Registers to Driverlib Functions
  9. 7 Control Law Accelerator (CLA)
    1. 7.1 Introduction
      1. 7.1.1 Features
      2. 7.1.2 CLA Related Collateral
      3. 7.1.3 Block Diagram
    2. 7.2 CLA Interface
      1. 7.2.1 CLA Memory
      2. 7.2.2 CLA Memory Bus
      3. 7.2.3 Shared Peripherals and EALLOW Protection
      4. 7.2.4 CLA Tasks and Interrupt Vectors
    3. 7.3 CLA and CPU Arbitration
      1. 7.3.1 CLA Message RAM
      2. 7.3.2 Peripheral Registers (ePWM, HRPWM, Comparator)
    4. 7.4 CLA Configuration and Debug
      1. 7.4.1 Building a CLA Application
      2. 7.4.2 Typical CLA Initialization Sequence
      3. 7.4.3 Debugging CLA Code
        1. 7.4.3.1 Software Breakpoint Support (MDEBUGSTOP1)
        2. 7.4.3.2 Breakpoint Support (MDEBUGSTOP)
      4. 7.4.4 CLA Illegal Opcode Behavior
      5. 7.4.5 Resetting the CLA
    5. 7.5 Pipeline
      1. 7.5.1 Pipeline Overview
      2. 7.5.2 CLA Pipeline Alignment
        1. 7.5.2.1 Code Fragment For MBCNDD, MCCNDD, or MRCNDD
        2.       362
        3. 7.5.2.2 Code Fragment for Loading MAR0 or MAR1
        4.       364
        5. 7.5.2.3 ADC Early Interrupt to CLA Response
      3. 7.5.3 Parallel Instructions
        1. 7.5.3.1 Math Operation with Parallel Load
        2. 7.5.3.2 Multiply with Parallel Add
      4. 7.5.4 CLA Task Execution Latency
    6. 7.6 Software
      1. 7.6.1 CLA Examples
        1. 7.6.1.1 CLA arcsine(x) using a lookup table (cla_asin_cpu01)
        2. 7.6.1.2 CLA arctangent(x) using a lookup table (cla_atan_cpu01)
        3. 7.6.1.3 CLA background nesting task
        4. 7.6.1.4 Controlling PWM output using CLA
        5. 7.6.1.5 Just-in-time ADC sampling with CLA
        6. 7.6.1.6 Optimal offloading of control algorithms to CLA
        7. 7.6.1.7 Handling shared resources across C28x and CLA
    7. 7.7 Instruction Set
      1. 7.7.1 Instruction Descriptions
      2. 7.7.2 Addressing Modes and Encoding
      3. 7.7.3 Instructions
        1.       MABSF32 MRa, MRb
        2.       MADD32 MRa, MRb, MRc
        3.       MADDF32 MRa, #16FHi, MRb
        4.       MADDF32 MRa, MRb, #16FHi
        5.       MADDF32 MRa, MRb, MRc
        6.       MADDF32 MRd, MRe, MRf||MMOV32 mem32, MRa
        7.       MADDF32 MRd, MRe, MRf ||MMOV32 MRa, mem32
        8.       MAND32 MRa, MRb, MRc
        9.       MASR32 MRa, #SHIFT
        10.       MBCNDD 16BitDest [, CNDF]
        11.       MCCNDD 16BitDest [, CNDF]
        12.       MCMP32 MRa, MRb
        13.       MCMPF32 MRa, MRb
        14.       MCMPF32 MRa, #16FHi
        15.       MDEBUGSTOP
        16.       MEALLOW
        17.       MEDIS
        18.       MEINVF32 MRa, MRb
        19.       MEISQRTF32 MRa, MRb
        20.       MF32TOI16 MRa, MRb
        21.       MF32TOI16R MRa, MRb
        22.       MF32TOI32 MRa, MRb
        23.       MF32TOUI16 MRa, MRb
        24.       MF32TOUI16R MRa, MRb
        25.       MF32TOUI32 MRa, MRb
        26.       MFRACF32 MRa, MRb
        27.       MI16TOF32 MRa, MRb
        28.       MI16TOF32 MRa, mem16
        29.       MI32TOF32 MRa, mem32
        30.       MI32TOF32 MRa, MRb
        31.       MLSL32 MRa, #SHIFT
        32.       MLSR32 MRa, #SHIFT
        33.       MMACF32 MR3, MR2, MRd, MRe, MRf ||MMOV32 MRa, mem32
        34.       MMAXF32 MRa, MRb
        35.       MMAXF32 MRa, #16FHi
        36.       MMINF32 MRa, MRb
        37.       MMINF32 MRa, #16FHi
        38.       MMOV16 MARx, MRa, #16I
        39.       MMOV16 MARx, mem16
        40.       MMOV16 mem16, MARx
        41.       MMOV16 mem16, MRa
        42.       MMOV32 mem32, MRa
        43.       MMOV32 mem32, MSTF
        44.       MMOV32 MRa, mem32 [, CNDF]
        45.       MMOV32 MRa, MRb [, CNDF]
        46.       MMOV32 MSTF, mem32
        47.       MMOVD32 MRa, mem32
        48.       MMOVF32 MRa, #32F
        49.       MMOVI16 MARx, #16I
        50.       MMOVI32 MRa, #32FHex
        51.       MMOVIZ MRa, #16FHi
        52.       MMOVZ16 MRa, mem16
        53.       MMOVXI MRa, #16FLoHex
        54.       MMPYF32 MRa, MRb, MRc
        55.       MMPYF32 MRa, #16FHi, MRb
        56.       MMPYF32 MRa, MRb, #16FHi
        57.       MMPYF32 MRa, MRb, MRc||MADDF32 MRd, MRe, MRf
        58.       MMPYF32 MRd, MRe, MRf ||MMOV32 MRa, mem32
        59.       MMPYF32 MRd, MRe, MRf ||MMOV32 mem32, MRa
        60.       MMPYF32 MRa, MRb, MRc ||MSUBF32 MRd, MRe, MRf
        61.       MNEGF32 MRa, MRb[, CNDF]
        62.       MNOP
        63.       MOR32 MRa, MRb, MRc
        64.       MRCNDD [CNDF]
        65.       MSETFLG FLAG, VALUE
        66.       MSTOP
        67.       MSUB32 MRa, MRb, MRc
        68.       MSUBF32 MRa, MRb, MRc
        69.       MSUBF32 MRa, #16FHi, MRb
        70.       MSUBF32 MRd, MRe, MRf ||MMOV32 MRa, mem32
        71.       MSUBF32 MRd, MRe, MRf ||MMOV32 mem32, MRa
        72.       MSWAPF MRa, MRb [, CNDF]
        73.       MTESTTF CNDF
        74.       MUI16TOF32 MRa, mem16
        75.       MUI16TOF32 MRa, MRb
        76.       MUI32TOF32 MRa, mem32
        77.       MUI32TOF32 MRa, MRb
        78.       MXOR32 MRa, MRb, MRc
    8. 7.8 CLA Registers
      1. 7.8.1 CLA Base Address Table
      2. 7.8.2 CLA_ONLY_REGS Registers
      3. 7.8.3 CLA_SOFTINT_REGS Registers
      4. 7.8.4 CLA_REGS Registers
      5. 7.8.5 CLA Registers to Driverlib Functions
  10. 8 Dual-Clock Comparator (DCC)
    1. 8.1 Introduction
      1. 8.1.1 Features
      2. 8.1.2 Block Diagram
    2. 8.2 Module Operation
      1. 8.2.1 Configuring DCC Counters
      2. 8.2.2 Single-Shot Measurement Mode
      3. 8.2.3 Continuous Monitoring Mode
      4. 8.2.4 Error Conditions
    3. 8.3 Interrupts
    4. 8.4 Software
      1. 8.4.1 DCC Examples
        1. 8.4.1.1 DCC Single shot Clock verification
        2. 8.4.1.2 DCC Single shot Clock measurement
        3. 8.4.1.3 DCC Continuous clock monitoring
        4. 8.4.1.4 DCC Continuous clock monitoring
        5. 8.4.1.5 DCC Detection of clock failure
    5. 8.5 DCC Registers
      1. 8.5.1 DCC Base Address Table
      2. 8.5.2 DCC_REGS Registers
      3. 8.5.3 DCC Registers to Driverlib Functions
  11. 9 Background CRC-32 (BGCRC)
    1. 9.1 Introduction
      1. 9.1.1 BGCRC Related Collateral
      2. 9.1.2 Features
      3. 9.1.3 Block Diagram
      4. 9.1.4 Memory Wait States and Memory Map
    2. 9.2 Functional Description
      1. 9.2.1 Data Read Unit
      2. 9.2.2 CRC-32 Compute Unit
      3. 9.2.3 CRC Notification Unit
        1. 9.2.3.1 CPU Interrupt, CLA Task and NMI
      4. 9.2.4 Operating Modes
        1. 9.2.4.1 CRC Mode
        2. 9.2.4.2 Scrub Mode
      5. 9.2.5 BGCRC Watchdog
      6. 9.2.6 Hardware and Software Faults Protection
    3. 9.3 Application of the BGCRC
      1. 9.3.1 Software Configuration
      2. 9.3.2 Decision on Error Response Severity
      3. 9.3.3 Decision of Controller for CLA_CRC
      4. 9.3.4 Execution of Time Critical Code from Wait-Stated Memories
      5. 9.3.5 BGCRC Execution
      6. 9.3.6 Debug/Error Response for BGCRC Errors
      7. 9.3.7 BGCRC Golden CRC-32 Value Computation
    4. 9.4 Software
      1. 9.4.1 BGCRC Examples
        1. 9.4.1.1 BGCRC CPU Interrupt Example
        2. 9.4.1.2 BGCRC Example with Watchdog and Lock
        3. 9.4.1.3 CLA-BGCRC Example in CRC mode
        4. 9.4.1.4 CLA-BGCRC Example in Scrub Mode
    5. 9.5 BGCRC Registers
      1. 9.5.1 BGCRC Base Address Table
      2. 9.5.2 BGCRC_REGS Registers
      3. 9.5.3 BGCRC Registers to Driverlib Functions
  12. 10General-Purpose Input/Output (GPIO)
    1. 10.1  Introduction
      1. 10.1.1 GPIO Related Collateral
    2. 10.2  Configuration Overview
    3. 10.3  Digital Inputs on ADC Pins (AIOs)
    4. 10.4  Digital Inputs and Outputs on ADC Pins (AGPIOs)
    5. 10.5  Digital General-Purpose I/O Control
    6. 10.6  Input Qualification
      1. 10.6.1 No Synchronization (Asynchronous Input)
      2. 10.6.2 Synchronization to SYSCLKOUT Only
      3. 10.6.3 Qualification Using a Sampling Window
    7. 10.7  GPIO and Peripheral Muxing
      1. 10.7.1 GPIO Muxing
      2. 10.7.2 Peripheral Muxing
    8. 10.8  Internal Pullup Configuration Requirements
    9. 10.9  Software
      1. 10.9.1 GPIO Examples
        1. 10.9.1.1 Device GPIO Setup
        2. 10.9.1.2 Device GPIO Toggle
        3. 10.9.1.3 Device GPIO Interrupt
        4. 10.9.1.4 External Interrupt (XINT)
      2. 10.9.2 LED Examples
    10. 10.10 GPIO Registers
      1. 10.10.1 GPIO Base Address Table
      2. 10.10.2 GPIO_CTRL_REGS Registers
      3. 10.10.3 GPIO_DATA_REGS Registers
      4. 10.10.4 GPIO_DATA_READ_REGS Registers
      5. 10.10.5 GPIO Registers to Driverlib Functions
  13. 11Crossbar (X-BAR)
    1. 11.1 Input X-BAR and CLB Input X-BAR
      1. 11.1.1 CLB Input X-BAR
    2. 11.2 ePWM, CLB, and GPIO Output X-BAR
      1. 11.2.1 ePWM X-BAR
        1. 11.2.1.1 ePWM X-BAR Architecture
      2. 11.2.2 CLB X-BAR
        1. 11.2.2.1 CLB X-BAR Architecture
      3. 11.2.3 GPIO Output X-BAR
        1. 11.2.3.1 GPIO Output X-BAR Architecture
      4. 11.2.4 CLB Output X-BAR
        1. 11.2.4.1 CLB Output X-BAR Architecture
      5. 11.2.5 X-BAR Flags
    3. 11.3 XBAR Registers
      1. 11.3.1 XBAR Base Address Table
      2. 11.3.2 INPUT_XBAR_REGS Registers
      3. 11.3.3 XBAR_REGS Registers
      4. 11.3.4 EPWM_XBAR_REGS Registers
      5. 11.3.5 CLB_XBAR_REGS Registers
      6. 11.3.6 OUTPUT_XBAR_REGS Registers
      7. 11.3.7 Register to Driverlib Function Mapping
        1. 11.3.7.1 INPUTXBAR Registers to Driverlib Functions
        2. 11.3.7.2 XBAR Registers to Driverlib Functions
        3. 11.3.7.3 EPWMXBAR Registers to Driverlib Functions
        4. 11.3.7.4 CLBXBAR Registers to Driverlib Functions
        5. 11.3.7.5 OUTPUTXBAR Registers to Driverlib Functions
  14. 12Direct Memory Access (DMA)
    1. 12.1 Introduction
      1. 12.1.1 Features
      2. 12.1.2 Block Diagram
    2. 12.2 Architecture
      1. 12.2.1 Peripheral Interrupt Event Trigger Sources
      2. 12.2.2 DMA Bus
    3. 12.3 Address Pointer and Transfer Control
    4. 12.4 Pipeline Timing and Throughput
    5. 12.5 CPU and CLA Arbitration
    6. 12.6 Channel Priority
      1. 12.6.1 Round-Robin Mode
      2. 12.6.2 Channel 1 High-Priority Mode
    7. 12.7 Overrun Detection Feature
    8. 12.8 Software
      1. 12.8.1 DMA Examples
        1. 12.8.1.1 DMA GSRAM Transfer (dma_ex1_gsram_transfer)
        2. 12.8.1.2 DMA GSRAM Transfer (dma_ex2_gsram_transfer)
    9. 12.9 DMA Registers
      1. 12.9.1 DMA Base Address Table
      2. 12.9.2 DMA_REGS Registers
      3. 12.9.3 DMA_CH_REGS Registers
      4. 12.9.4 DMA Registers to Driverlib Functions
  15. 13Embedded Real-time Analysis and Diagnostic (ERAD)
    1. 13.1 Introduction
      1. 13.1.1 ERAD Related Collateral
    2. 13.2 Enhanced Bus Comparator Unit
      1. 13.2.1 Enhanced Bus Comparator Unit Operations
      2. 13.2.2 Event Masking and Exporting
    3. 13.3 System Event Counter Unit
      1. 13.3.1 System Event Counter Modes
        1. 13.3.1.1 Counting Active Levels Versus Edges
        2. 13.3.1.2 Max Mode
        3. 13.3.1.3 Cumulative Mode
        4. 13.3.1.4 Input Signal Selection
      2. 13.3.2 Reset on Event
      3. 13.3.3 Operation Conditions
    4. 13.4 ERAD Ownership, Initialization and Reset
    5. 13.5 ERAD Programming Sequence
      1. 13.5.1 Hardware Breakpoint and Hardware Watch Point Programming Sequence
      2. 13.5.2 Timer and Counter Programming Sequence
    6. 13.6 Cyclic Redundancy Check Unit
      1. 13.6.1 CRC Unit Qualifier
      2. 13.6.2 CRC Unit Programming Sequence
    7. 13.7 Program Counter Trace
      1. 13.7.1 Functional Block Diagram
      2. 13.7.2 Trace Qualification Modes
        1. 13.7.2.1 Trace Qualifier Input Signals
      3. 13.7.3 Trace Memory
      4. 13.7.4 Trace Input Signal Conditioning
      5. 13.7.5 PC Trace Software Operation
      6. 13.7.6 Trace Operation in Debug Mode
    8. 13.8 Software
      1. 13.8.1 ERAD Examples
        1. 13.8.1.1  ERAD Profiling Interrupts
        2. 13.8.1.2  ERAD Profile Function
        3. 13.8.1.3  ERAD Profile Function
        4. 13.8.1.4  ERAD HWBP Monitor Program Counter
        5. 13.8.1.5  ERAD HWBP Monitor Program Counter
        6. 13.8.1.6  ERAD Profile Function
        7. 13.8.1.7  ERAD HWBP Stack Overflow Detection
        8. 13.8.1.8  ERAD HWBP Stack Overflow Detection
        9. 13.8.1.9  ERAD Stack Overflow
        10. 13.8.1.10 ERAD Profile Interrupts CLA
        11. 13.8.1.11 ERAD Profiling Interrupts
        12. 13.8.1.12 ERAD Profiling Interrupts
        13. 13.8.1.13 ERAD MEMORY ACCESS RESTRICT
        14. 13.8.1.14 ERAD INTERRUPT ORDER
        15. 13.8.1.15 ERAD AND CLB
        16. 13.8.1.16 ERAD PWM PROTECTION
    9. 13.9 ERAD Registers
      1. 13.9.1 ERAD Base Address Table
      2. 13.9.2 ERAD_GLOBAL_REGS Registers
      3. 13.9.3 ERAD_HWBP_REGS Registers
      4. 13.9.4 ERAD_COUNTER_REGS Registers
      5. 13.9.5 ERAD_CRC_GLOBAL_REGS Registers
      6. 13.9.6 ERAD_CRC_REGS Registers
      7. 13.9.7 ERAD Registers to Driverlib Functions
  16. 14Host Interface Controller (HIC)
    1. 14.1 Introduction
      1. 14.1.1 Features
      2. 14.1.2 Block Diagram
      3. 14.1.3 HIC Related Collateral
    2. 14.2 Functional Description
      1. 14.2.1 Memory Map
      2. 14.2.2 Connections
        1. 14.2.2.1 Functions of the Connections
      3. 14.2.3 Interrupts and Triggers
    3. 14.3 Operation
      1. 14.3.1 Mailbox Access Mode Overview
        1. 14.3.1.1 Mailbox Access Mode Operation
        2. 14.3.1.2 Configuring HIC Registers With External Host
        3. 14.3.1.3 Mailbox Access Mode Read/Write
      2. 14.3.2 Direct Access Mode Overview
        1. 14.3.2.1 Direct Access Mode Operation
        2. 14.3.2.2 Direct Access Mode Read/Write
      3. 14.3.3 Controlling Reads and Writes
        1. 14.3.3.1 Single-Pin Read/Write Mode (nOE/RnW Pin)
        2. 14.3.3.2 Dual-Pin Read/Write Mode (nOE and nWE Pins)
      4. 14.3.4 Data Lines, Data Width, Data Packing and Unpacking
      5. 14.3.5 Address Translation
      6. 14.3.6 Access Errors
      7. 14.3.7 Security
      8. 14.3.8 HIC Usage
    4. 14.4 Usage Scenarious for Reduced Number of Pins
    5. 14.5 Software
      1. 14.5.1 HIC Examples
        1. 14.5.1.1 HIC 16-bit Memory Access Example
        2. 14.5.1.2 HIC 8-bit Memory Access Example
        3. 14.5.1.3 HIC 16-bit Memory Access FSI Example
    6. 14.6 HIC Registers
      1. 14.6.1 HIC Base Address Table
      2. 14.6.2 HIC_CFG_REGS Registers
      3. 14.6.3 HIC Registers to Driverlib Functions
  17. 15Analog Subsystem
    1. 15.1 Introduction
      1. 15.1.1 Features
      2. 15.1.2 Block Diagram
    2. 15.2 Optimizing Power-Up Time
    3. 15.3 Digital Inputs on ADC Pins (AIOs)
    4. 15.4 Digital Inputs and Outputs on ADC Pins (AGPIOs)
    5. 15.5 Analog Pins and Internal Connections
    6. 15.6 Analog Subsystem Registers
      1. 15.6.1 ASBSYS Base Address Table
      2. 15.6.2 ANALOG_SUBSYS_REGS Registers
      3. 15.6.3 ASYSCTL Registers to Driverlib Functions
  18. 16Analog-to-Digital Converter (ADC)
    1. 16.1  Introduction
      1. 16.1.1 ADC Related Collateral
      2. 16.1.2 Features
      3. 16.1.3 Block Diagram
    2. 16.2  ADC Configurability
      1. 16.2.1 Clock Configuration
      2. 16.2.2 Resolution
      3. 16.2.3 Voltage Reference
        1. 16.2.3.1 External Reference Mode
        2. 16.2.3.2 Internal Reference Mode
        3. 16.2.3.3 Selecting Reference Mode
      4. 16.2.4 Signal Mode
      5. 16.2.5 Expected Conversion Results
      6. 16.2.6 Interpreting Conversion Results
    3. 16.3  SOC Principle of Operation
      1. 16.3.1 SOC Configuration
      2. 16.3.2 Trigger Operation
      3. 16.3.3 ADC Acquisition (Sample and Hold) Window
      4. 16.3.4 ADC Input Models
      5. 16.3.5 Channel Selection
    4. 16.4  SOC Configuration Examples
      1. 16.4.1 Single Conversion from ePWM Trigger
      2. 16.4.2 Oversampled Conversion from ePWM Trigger
      3. 16.4.3 Multiple Conversions from CPU Timer Trigger
      4. 16.4.4 Software Triggering of SOCs
    5. 16.5  ADC Conversion Priority
    6. 16.6  Burst Mode
      1. 16.6.1 Burst Mode Example
      2. 16.6.2 Burst Mode Priority Example
    7. 16.7  EOC and Interrupt Operation
      1. 16.7.1 Interrupt Overflow
      2. 16.7.2 Continue to Interrupt Mode
      3. 16.7.3 Early Interrupt Configuration Mode
    8. 16.8  Post-Processing Blocks
      1. 16.8.1 PPB Offset Correction
      2. 16.8.2 PPB Error Calculation
      3. 16.8.3 PPB Limit Detection and Zero-Crossing Detection
      4. 16.8.4 PPB Sample Delay Capture
    9. 16.9  Opens/Shorts Detection Circuit (OSDETECT)
      1. 16.9.1 Implementation
      2. 16.9.2 Detecting an Open Input Pin
      3. 16.9.3 Detecting a Shorted Input Pin
    10. 16.10 Power-Up Sequence
    11. 16.11 ADC Calibration
      1. 16.11.1 ADC Zero Offset Calibration
    12. 16.12 ADC Timings
      1. 16.12.1 ADC Timing Diagrams
    13. 16.13 Additional Information
      1. 16.13.1 Ensuring Synchronous Operation
        1. 16.13.1.1 Basic Synchronous Operation
        2. 16.13.1.2 Synchronous Operation with Multiple Trigger Sources
        3. 16.13.1.3 Synchronous Operation with Uneven SOC Numbers
        4. 16.13.1.4 Non-overlapping Conversions
      2. 16.13.2 Choosing an Acquisition Window Duration
      3. 16.13.3 Achieving Simultaneous Sampling
      4. 16.13.4 Result Register Mapping
      5. 16.13.5 Internal Temperature Sensor
      6. 16.13.6 Designing an External Reference Circuit
      7. 16.13.7 ADC-DAC Loopback Testing
      8. 16.13.8 Internal Test Mode
      9. 16.13.9 ADC Gain and Offset Calibration
    14. 16.14 Software
      1. 16.14.1 ADC Examples
        1. 16.14.1.1  ADC Software Triggering
        2. 16.14.1.2  ADC ePWM Triggering
        3. 16.14.1.3  ADC Temperature Sensor Conversion
        4. 16.14.1.4  ADC Synchronous SOC Software Force (adc_soc_software_sync)
        5. 16.14.1.5  ADC Continuous Triggering (adc_soc_continuous)
        6. 16.14.1.6  ADC Continuous Conversions Read by DMA (adc_soc_continuous_dma)
        7. 16.14.1.7  ADC PPB Offset (adc_ppb_offset)
        8. 16.14.1.8  ADC PPB Limits (adc_ppb_limits)
        9. 16.14.1.9  ADC PPB Delay Capture (adc_ppb_delay)
        10. 16.14.1.10 ADC ePWM Triggering Multiple SOC
        11. 16.14.1.11 ADC Burst Mode
        12. 16.14.1.12 ADC Burst Mode Oversampling
        13. 16.14.1.13 ADC SOC Oversampling
        14. 16.14.1.14 ADC PPB PWM trip (adc_ppb_pwm_trip)
        15. 16.14.1.15 ADC Open Shorts Detection (adc_open_shorts_detection)
    15. 16.15 ADC Registers
      1. 16.15.1 ADC Base Address Table
      2. 16.15.2 ADC_RESULT_REGS Registers
      3. 16.15.3 ADC_REGS Registers
      4. 16.15.4 ADC Registers to Driverlib Functions
  19. 17Buffered Digital-to-Analog Converter (DAC)
    1. 17.1 Introduction
      1. 17.1.1 DAC Related Collateral
      2. 17.1.2 Features
      3. 17.1.3 Block Diagram
    2. 17.2 Using the DAC
      1. 17.2.1 Initialization Sequence
      2. 17.2.2 DAC Offset Adjustment
      3. 17.2.3 EPWMSYNCPER Signal
    3. 17.3 Lock Registers
    4. 17.4 Software
      1. 17.4.1 DAC Examples
        1. 17.4.1.1 Buffered DAC Enable
        2. 17.4.1.2 Buffered DAC Random
        3. 17.4.1.3 Buffered DAC Sine (buffdac_sine)
    5. 17.5 DAC Registers
      1. 17.5.1 DAC Base Address Table
      2. 17.5.2 DAC_REGS Registers
      3. 17.5.3 DAC Registers to Driverlib Functions
  20. 18Comparator Subsystem (CMPSS)
    1. 18.1 Introduction
      1. 18.1.1 CMPSS Related Collateral
      2. 18.1.2 Features
      3. 18.1.3 Block Diagram
    2. 18.2 Comparator
    3. 18.3 Reference DAC
    4. 18.4 Ramp Generator
      1. 18.4.1 Ramp Generator Overview
      2. 18.4.2 Ramp Generator Behavior
      3. 18.4.3 Ramp Generator Behavior at Corner Cases
    5. 18.5 Digital Filter
      1. 18.5.1 Filter Initialization Sequence
    6. 18.6 Using the CMPSS
      1. 18.6.1 LATCHCLR, EPWMSYNCPER, and EPWMBLANK Signals
      2. 18.6.2 Synchronizer, Digital Filter, and Latch Delays
      3. 18.6.3 Calibrating the CMPSS
      4. 18.6.4 Enabling and Disabling the CMPSS Clock
    7. 18.7 Software
      1. 18.7.1 CMPSS Examples
        1. 18.7.1.1 CMPSS Asynchronous Trip
        2. 18.7.1.2 CMPSS Digital Filter Configuration
    8. 18.8 CMPSS Registers
      1. 18.8.1 CMPSS Base Address Table
      2. 18.8.2 CMPSS_REGS Registers
      3. 18.8.3 CMPSS Registers to Driverlib Functions
  21. 19Sigma Delta Filter Module (SDFM)
    1. 19.1  Introduction
      1. 19.1.1 SDFM Related Collateral
      2. 19.1.2 Features
      3. 19.1.3 Block Diagram
    2. 19.2  Configuring Device Pins
    3. 19.3  Input Qualification
    4. 19.4  Input Control Unit
    5. 19.5  SDFM Clock Control
    6. 19.6  Sinc Filter
      1. 19.6.1 Data Rate and Latency of the Sinc Filter
    7. 19.7  Data (Primary) Filter Unit
      1. 19.7.1 32-bit or 16-bit Data Filter Output Representation
      2. 19.7.2 Data FIFO
      3. 19.7.3 SDSYNC Event
    8. 19.8  Comparator (Secondary) Filter Unit
      1. 19.8.1 Higher Threshold (HLT) Comparators
      2. 19.8.2 Lower Threshold (LLT) Comparators
      3. 19.8.3 Digital Filter
    9. 19.9  Theoretical SDFM Filter Output
    10. 19.10 Interrupt Unit
      1. 19.10.1 SDFM (SDyERR) Interrupt Sources
      2. 19.10.2 Data Ready (DRINT) Interrupt Sources
    11. 19.11 Software
      1. 19.11.1 SDFM Examples
        1. 19.11.1.1 SDFM Filter Sync CPU
        2. 19.11.1.2 SDFM Filter Sync CLA
        3. 19.11.1.3 SDFM Filter Sync DMA
        4. 19.11.1.4 SDFM PWM Sync
        5. 19.11.1.5 SDFM Type 1 Filter FIFO
        6. 19.11.1.6 SDFM Filter Sync CLA
    12. 19.12 SDFM Registers
      1. 19.12.1 SDFM Base Address Table
      2. 19.12.2 SDFM_REGS Registers
      3. 19.12.3 SDFM Registers to Driverlib Functions
  22. 20Enhanced Pulse Width Modulator (ePWM)
    1. 20.1  Introduction
      1. 20.1.1 EPWM Related Collateral
      2. 20.1.2 Submodule Overview
    2. 20.2  Configuring Device Pins
    3. 20.3  ePWM Modules Overview
    4. 20.4  Time-Base (TB) Submodule
      1. 20.4.1 Purpose of the Time-Base Submodule
      2. 20.4.2 Controlling and Monitoring the Time-Base Submodule
      3. 20.4.3 Calculating PWM Period and Frequency
        1. 20.4.3.1 Time-Base Period Shadow Register
        2. 20.4.3.2 Time-Base Clock Synchronization
        3. 20.4.3.3 Time-Base Counter Synchronization
        4. 20.4.3.4 ePWM SYNC Selection
      4. 20.4.4 Phase Locking the Time-Base Clocks of Multiple ePWM Modules
      5. 20.4.5 Simultaneous Writes to TBPRD and CMPx Registers Between ePWM Modules
      6. 20.4.6 Time-Base Counter Modes and Timing Waveforms
      7. 20.4.7 Global Load
        1. 20.4.7.1 Global Load Pulse Pre-Scalar
        2. 20.4.7.2 One-Shot Load Mode
        3. 20.4.7.3 One-Shot Sync Mode
    5. 20.5  Counter-Compare (CC) Submodule
      1. 20.5.1 Purpose of the Counter-Compare Submodule
      2. 20.5.2 Controlling and Monitoring the Counter-Compare Submodule
      3. 20.5.3 Operational Highlights for the Counter-Compare Submodule
      4. 20.5.4 Count Mode Timing Waveforms
    6. 20.6  Action-Qualifier (AQ) Submodule
      1. 20.6.1 Purpose of the Action-Qualifier Submodule
      2. 20.6.2 Action-Qualifier Submodule Control and Status Register Definitions
      3. 20.6.3 Action-Qualifier Event Priority
      4. 20.6.4 AQCTLA and AQCTLB Shadow Mode Operations
      5. 20.6.5 Configuration Requirements for Common Waveforms
    7. 20.7  Dead-Band Generator (DB) Submodule
      1. 20.7.1 Purpose of the Dead-Band Submodule
      2. 20.7.2 Dead-band Submodule Additional Operating Modes
      3. 20.7.3 Operational Highlights for the Dead-Band Submodule
    8. 20.8  PWM Chopper (PC) Submodule
      1. 20.8.1 Purpose of the PWM Chopper Submodule
      2. 20.8.2 Operational Highlights for the PWM Chopper Submodule
      3. 20.8.3 Waveforms
        1. 20.8.3.1 One-Shot Pulse
        2. 20.8.3.2 Duty Cycle Control
    9. 20.9  Trip-Zone (TZ) Submodule
      1. 20.9.1 Purpose of the Trip-Zone Submodule
      2. 20.9.2 Operational Highlights for the Trip-Zone Submodule
        1. 20.9.2.1 Trip-Zone Configurations
      3. 20.9.3 Generating Trip Event Interrupts
    10. 20.10 Event-Trigger (ET) Submodule
      1. 20.10.1 Operational Overview of the ePWM Event-Trigger Submodule
    11. 20.11 Digital Compare (DC) Submodule
      1. 20.11.1 Purpose of the Digital Compare Submodule
      2. 20.11.2 Enhanced Trip Action Using CMPSS
      3. 20.11.3 Using CMPSS to Trip the ePWM on a Cycle-by-Cycle Basis
      4. 20.11.4 Operation Highlights of the Digital Compare Submodule
        1. 20.11.4.1 Digital Compare Events
        2. 20.11.4.2 Event Filtering
        3. 20.11.4.3 Valley Switching
    12. 20.12 ePWM Crossbar (X-BAR)
    13. 20.13 Applications to Power Topologies
      1. 20.13.1  Overview of Multiple Modules
      2. 20.13.2  Key Configuration Capabilities
      3. 20.13.3  Controlling Multiple Buck Converters With Independent Frequencies
      4. 20.13.4  Controlling Multiple Buck Converters With Same Frequencies
      5. 20.13.5  Controlling Multiple Half H-Bridge (HHB) Converters
      6. 20.13.6  Controlling Dual 3-Phase Inverters for Motors (ACI and PMSM)
      7. 20.13.7  Practical Applications Using Phase Control Between PWM Modules
      8. 20.13.8  Controlling a 3-Phase Interleaved DC/DC Converter
      9. 20.13.9  Controlling Zero Voltage Switched Full Bridge (ZVSFB) Converter
      10. 20.13.10 Controlling a Peak Current Mode Controlled Buck Module
      11. 20.13.11 Controlling H-Bridge LLC Resonant Converter
    14. 20.14 Register Lock Protection
    15. 20.15 High-Resolution Pulse Width Modulator (HRPWM)
      1. 20.15.1 Operational Description of HRPWM
        1. 20.15.1.1 Controlling the HRPWM Capabilities
        2. 20.15.1.2 HRPWM Source Clock
        3. 20.15.1.3 Configuring the HRPWM
        4. 20.15.1.4 Configuring High-Resolution in Deadband Rising-Edge and Falling-Edge Delay
        5. 20.15.1.5 Principle of Operation
          1. 20.15.1.5.1 Edge Positioning
          2. 20.15.1.5.2 Scaling Considerations
          3. 20.15.1.5.3 Duty Cycle Range Limitation
          4. 20.15.1.5.4 High-Resolution Period
            1. 20.15.1.5.4.1 High-Resolution Period Configuration
        6. 20.15.1.6 Deadband High-Resolution Operation
        7. 20.15.1.7 Scale Factor Optimizing Software (SFO)
        8. 20.15.1.8 HRPWM Examples Using Optimized Assembly Code
          1. 20.15.1.8.1 #Defines for HRPWM Header Files
          2. 20.15.1.8.2 Implementing a Simple Buck Converter
            1. 20.15.1.8.2.1 HRPWM Buck Converter Initialization Code
            2. 20.15.1.8.2.2 HRPWM Buck Converter Run-Time Code
          3. 20.15.1.8.3 Implementing a DAC Function Using an R+C Reconstruction Filter
            1. 20.15.1.8.3.1 PWM DAC Function Initialization Code
            2. 20.15.1.8.3.2 PWM DAC Function Run-Time Code
      2. 20.15.2 SFO Library Software - SFO_TI_Build_V8.lib
        1. 20.15.2.1 Scale Factor Optimizer Function - int SFO()
        2. 20.15.2.2 Software Usage
          1. 20.15.2.2.1 A Sample of How to Add "Include" Files
          2.        963
          3. 20.15.2.2.2 Declaring an Element
          4.        965
          5. 20.15.2.2.3 Initializing With a Scale Factor Value
          6.        967
          7. 20.15.2.2.4 SFO Function Calls
    16. 20.16 Software
      1. 20.16.1 EPWM Examples
        1. 20.16.1.1  ePWM Trip Zone
        2. 20.16.1.2  ePWM Up Down Count Action Qualifier
        3. 20.16.1.3  ePWM Synchronization
        4. 20.16.1.4  ePWM Digital Compare
        5. 20.16.1.5  ePWM Digital Compare Event Filter Blanking Window
        6. 20.16.1.6  ePWM Valley Switching
        7. 20.16.1.7  ePWM Digital Compare Edge Filter
        8. 20.16.1.8  ePWM Deadband
        9. 20.16.1.9  ePWM DMA
        10. 20.16.1.10 ePWM Chopper
        11. 20.16.1.11 EPWM Configure Signal
        12. 20.16.1.12 Realization of Monoshot mode
        13. 20.16.1.13 EPWM Action Qualifier (epwm_up_aq)
      2. 20.16.2 HRPWM Examples
        1. 20.16.2.1 HRPWM Duty Control with SFO
        2. 20.16.2.2 HRPWM Slider
        3. 20.16.2.3 HRPWM Period Control
        4. 20.16.2.4 HRPWM Duty Control with UPDOWN Mode
        5. 20.16.2.5 HRPWM Slider Test
        6. 20.16.2.6 HRPWM Duty Up Count
        7. 20.16.2.7 HRPWM Period Up-Down Count
    17. 20.17 ePWM Registers
      1. 20.17.1 EPWM Base Address Table
      2. 20.17.2 EPWM_REGS Registers
      3. 20.17.3 Register to Driverlib Function Mapping
        1. 20.17.3.1 EPWM Registers to Driverlib Functions
        2. 20.17.3.2 HRPWM Registers to Driverlib Functions
  23. 21Enhanced Capture (eCAP)
    1. 21.1 Introduction
      1. 21.1.1 Features
      2. 21.1.2 ECAP Related Collateral
    2. 21.2 Description
    3. 21.3 Configuring Device Pins for the eCAP
    4. 21.4 Capture and APWM Operating Mode
    5. 21.5 Capture Mode Description
      1. 21.5.1  Event Prescaler
      2. 21.5.2  Edge Polarity Select and Qualifier
      3. 21.5.3  Continuous/One-Shot Control
      4. 21.5.4  32-Bit Counter and Phase Control
      5. 21.5.5  CAP1-CAP4 Registers
      6. 21.5.6  eCAP Synchronization
        1. 21.5.6.1 Example 1 - Using SWSYNC with ECAP Module
      7. 21.5.7  Interrupt Control
      8. 21.5.8  DMA Interrupt
      9. 21.5.9  Shadow Load and Lockout Control
      10. 21.5.10 APWM Mode Operation
    6. 21.6 Application of the eCAP Module
      1. 21.6.1 Example 1 - Absolute Time-Stamp Operation Rising-Edge Trigger
      2. 21.6.2 Example 2 - Absolute Time-Stamp Operation Rising- and Falling-Edge Trigger
      3. 21.6.3 Example 3 - Time Difference (Delta) Operation Rising-Edge Trigger
      4. 21.6.4 Example 4 - Time Difference (Delta) Operation Rising- and Falling-Edge Trigger
    7. 21.7 Application of the APWM Mode
      1. 21.7.1 Example 1 - Simple PWM Generation (Independent Channels)
    8. 21.8 Software
      1. 21.8.1 ECAP Examples
        1. 21.8.1.1 eCAP APWM Example
        2. 21.8.1.2 eCAP Capture PWM Example
        3. 21.8.1.3 eCAP APWM Phase-shift Example
        4. 21.8.1.4 eCAP Software Sync Example
    9. 21.9 eCAP Registers
      1. 21.9.1 ECAP Base Address Table
      2. 21.9.2 ECAP_REGS Registers
      3. 21.9.3 ECAP Registers to Driverlib Functions
  24. 22High Resolution Capture (HRCAP)
    1. 22.1 Introduction
      1. 22.1.1 HRCAP Related Collateral
      2. 22.1.2 Features
      3. 22.1.3 Description
    2. 22.2 Operational Details
      1. 22.2.1 HRCAP Clocking
      2. 22.2.2 HRCAP Initialization Sequence
      3. 22.2.3 HRCAP Interrupts
      4. 22.2.4 HRCAP Calibration
        1. 22.2.4.1 Applying the Scale Factor
    3. 22.3 Known Exceptions
    4. 22.4 Software
      1. 22.4.1 HRCAP Examples
        1. 22.4.1.1 HRCAP Capture and Calibration Example
    5. 22.5 HRCAP Registers
      1. 22.5.1 HRCAP Base Address Table
      2. 22.5.2 HRCAP_REGS Registers
      3. 22.5.3 HRCAP Registers to Driverlib Functions
  25. 23Enhanced Quadrature Encoder Pulse (eQEP)
    1. 23.1  Introduction
      1. 23.1.1 EQEP Related Collateral
    2. 23.2  Configuring Device Pins
    3. 23.3  Description
      1. 23.3.1 EQEP Inputs
      2. 23.3.2 Functional Description
      3. 23.3.3 eQEP Memory Map
    4. 23.4  Quadrature Decoder Unit (QDU)
      1. 23.4.1 Position Counter Input Modes
        1. 23.4.1.1 Quadrature Count Mode
        2. 23.4.1.2 Direction-Count Mode
        3. 23.4.1.3 Up-Count Mode
        4. 23.4.1.4 Down-Count Mode
      2. 23.4.2 eQEP Input Polarity Selection
      3. 23.4.3 Position-Compare Sync Output
    5. 23.5  Position Counter and Control Unit (PCCU)
      1. 23.5.1 Position Counter Operating Modes
        1. 23.5.1.1 Position Counter Reset on Index Event (QEPCTL[PCRM]=00)
        2. 23.5.1.2 Position Counter Reset on Maximum Position (QEPCTL[PCRM]=01)
        3. 23.5.1.3 Position Counter Reset on the First Index Event (QEPCTL[PCRM] = 10)
        4. 23.5.1.4 Position Counter Reset on Unit Time-out Event (QEPCTL[PCRM] = 11)
      2. 23.5.2 Position Counter Latch
        1. 23.5.2.1 Index Event Latch
        2. 23.5.2.2 Strobe Event Latch
      3. 23.5.3 Position Counter Initialization
      4. 23.5.4 eQEP Position-compare Unit
    6. 23.6  eQEP Edge Capture Unit
    7. 23.7  eQEP Watchdog
    8. 23.8  eQEP Unit Timer Base
    9. 23.9  QMA Module
      1. 23.9.1 Modes of Operation
        1. 23.9.1.1 QMA Mode-1 (QMACTRL[MODE]=1)
        2. 23.9.1.2 QMA Mode-2 (QMACTRL[MODE]=2)
      2. 23.9.2 Interrupt and Error Generation
    10. 23.10 eQEP Interrupt Structure
    11. 23.11 Software
      1. 23.11.1 EQEP Examples
        1. 23.11.1.1 Frequency Measurement Using eQEP
        2. 23.11.1.2 Position and Speed Measurement Using eQEP
        3. 23.11.1.3 ePWM frequency Measurement Using eQEP via xbar connection
        4. 23.11.1.4 Frequency Measurement Using eQEP via unit timeout interrupt
        5. 23.11.1.5 Motor speed and direction measurement using eQEP via unit timeout interrupt
    12. 23.12 eQEP Registers
      1. 23.12.1 EQEP Base Address Table
      2. 23.12.2 EQEP_REGS Registers
      3. 23.12.3 EQEP Registers to Driverlib Functions
  26. 24Serial Peripheral Interface (SPI)
    1. 24.1 Introduction
      1. 24.1.1 Features
      2. 24.1.2 SPI Related Collateral
      3. 24.1.3 Block Diagram
    2. 24.2 System-Level Integration
      1. 24.2.1 SPI Module Signals
      2. 24.2.2 Configuring Device Pins
        1. 24.2.2.1 GPIOs Required for High-Speed Mode
      3. 24.2.3 SPI Interrupts
      4. 24.2.4 DMA Support
    3. 24.3 SPI Operation
      1. 24.3.1 Introduction to Operation
      2. 24.3.2 Master Mode
      3. 24.3.3 Slave Mode
      4. 24.3.4 Data Format
        1. 24.3.4.1 Transmission of Bit from SPIRXBUF
      5. 24.3.5 Baud Rate Selection
        1. 24.3.5.1 Baud Rate Determination
        2. 24.3.5.2 Baud Rate Calculation in Non-High Speed Mode (HS_MODE = 0)
      6. 24.3.6 SPI Clocking Schemes
      7. 24.3.7 SPI FIFO Description
      8. 24.3.8 SPI DMA Transfers
        1. 24.3.8.1 Transmitting Data Using SPI with DMA
        2. 24.3.8.2 Receiving Data Using SPI with DMA
    4. 24.4 Programming Procedure
      1. 24.4.1 Initialization Upon Reset
      2. 24.4.2 Configuring the SPI
      3. 24.4.3 Data Transfer Example
    5. 24.5 Software
      1. 24.5.1 SPI Examples
        1. 24.5.1.1 SPI Digital Loopback
        2. 24.5.1.2 SPI Digital Loopback with FIFO Interrupts
        3. 24.5.1.3 SPI Digital External Loopback without FIFO Interrupts
        4. 24.5.1.4 SPI Digital External Loopback with FIFO Interrupts
        5. 24.5.1.5 SPI Digital Loopback with DMA
        6. 24.5.1.6 SPI EEPROM
        7. 24.5.1.7 SPI DMA EEPROM
    6. 24.6 SPI Registers
      1. 24.6.1 SPI Base Address Table
      2. 24.6.2 SPI_REGS Registers
      3. 24.6.3 SPI Registers to Driverlib Functions
  27. 25Serial Communications Interface (SCI)
    1. 25.1  Introduction
      1. 25.1.1 Features
      2. 25.1.2 SCI Related Collateral
      3. 25.1.3 Block Diagram
    2. 25.2  Architecture
    3. 25.3  SCI Module Signal Summary
    4. 25.4  Configuring Device Pins
    5. 25.5  Multiprocessor and Asynchronous Communication Modes
    6. 25.6  SCI Programmable Data Format
    7. 25.7  SCI Multiprocessor Communication
      1. 25.7.1 Recognizing the Address Byte
      2. 25.7.2 Controlling the SCI TX and RX Features
      3. 25.7.3 Receipt Sequence
    8. 25.8  Idle-Line Multiprocessor Mode
      1. 25.8.1 Idle-Line Mode Steps
      2. 25.8.2 Block Start Signal
      3. 25.8.3 Wake-Up Temporary (WUT) Flag
        1. 25.8.3.1 Sending a Block Start Signal
      4. 25.8.4 Receiver Operation
    9. 25.9  Address-Bit Multiprocessor Mode
      1. 25.9.1 Sending an Address
    10. 25.10 SCI Communication Format
      1. 25.10.1 Receiver Signals in Communication Modes
      2. 25.10.2 Transmitter Signals in Communication Modes
    11. 25.11 SCI Port Interrupts
      1. 25.11.1 Break Detect
    12. 25.12 SCI Baud Rate Calculations
    13. 25.13 SCI Enhanced Features
      1. 25.13.1 SCI FIFO Description
      2. 25.13.2 SCI Auto-Baud
      3. 25.13.3 Autobaud-Detect Sequence
    14. 25.14 Software
      1. 25.14.1 SCI Examples
        1. 25.14.1.1 Tune Baud Rate via UART Example
        2. 25.14.1.2 SCI FIFO Digital Loop Back
        3. 25.14.1.3 SCI Digital Loop Back with Interrupts
        4. 25.14.1.4 SCI Echoback
        5. 25.14.1.5 stdout redirect example
    15. 25.15 SCI Registers
      1. 25.15.1 SCI Base Address Table
      2. 25.15.2 SCI_REGS Registers
      3. 25.15.3 SCI Registers to Driverlib Functions
  28. 26Inter-Integrated Circuit Module (I2C)
    1. 26.1 Introduction
      1. 26.1.1 I2C Related Collateral
      2. 26.1.2 Features
      3. 26.1.3 Features Not Supported
      4. 26.1.4 Functional Overview
      5. 26.1.5 Clock Generation
      6. 26.1.6 I2C Clock Divider Registers (I2CCLKL and I2CCLKH)
        1. 26.1.6.1 Formula for the Master Clock Period
    2. 26.2 Configuring Device Pins
    3. 26.3 I2C Module Operational Details
      1. 26.3.1  Input and Output Voltage Levels
      2. 26.3.2  Selecting Pullup Resistors
      3. 26.3.3  Data Validity
      4. 26.3.4  Operating Modes
      5. 26.3.5  I2C Module START and STOP Conditions
      6. 26.3.6  Non-repeat Mode versus Repeat Mode
      7. 26.3.7  Serial Data Formats
        1. 26.3.7.1 7-Bit Addressing Format
        2. 26.3.7.2 10-Bit Addressing Format
        3. 26.3.7.3 Free Data Format
        4. 26.3.7.4 Using a Repeated START Condition
      8. 26.3.8  Clock Synchronization
      9. 26.3.9  Arbitration
      10. 26.3.10 Digital Loopback Mode
      11. 26.3.11 NACK Bit Generation
    4. 26.4 Interrupt Requests Generated by the I2C Module
      1. 26.4.1 Basic I2C Interrupt Requests
      2. 26.4.2 I2C FIFO Interrupts
    5. 26.5 Resetting or Disabling the I2C Module
    6. 26.6 Software
      1. 26.6.1 I2C Examples
        1. 26.6.1.1 C28x-I2C Library source file for FIFO interrupts
        2. 26.6.1.2 C28x-I2C Library source file for FIFO using polling
        3. 26.6.1.3 C28x-I2C Library source file for FIFO interrupts
        4. 26.6.1.4 I2C Digital Loopback with FIFO Interrupts
        5. 26.6.1.5 I2C EEPROM
        6. 26.6.1.6 I2C Digital External Loopback with FIFO Interrupts
        7. 26.6.1.7 I2C EEPROM
        8. 26.6.1.8 I2C controller target communication using FIFO interrupts
        9. 26.6.1.9 I2C EEPROM
    7. 26.7 I2C Registers
      1. 26.7.1 I2C Base Address Table
      2. 26.7.2 I2C_REGS Registers
      3. 26.7.3 I2C Registers to Driverlib Functions
  29. 27Power Management Bus Module (PMBus)
    1. 27.1 Introduction
      1. 27.1.1 PMBUS Related Collateral
      2. 27.1.2 Features
      3. 27.1.3 Block Diagram
    2. 27.2 Configuring Device Pins
    3. 27.3 Slave Mode Operation
      1. 27.3.1 Configuration
      2. 27.3.2 Message Handling
        1. 27.3.2.1  Quick Command
        2. 27.3.2.2  Send Byte
        3. 27.3.2.3  Receive Byte
        4. 27.3.2.4  Write Byte and Write Word
        5. 27.3.2.5  Read Byte and Read Word
        6. 27.3.2.6  Process Call
        7. 27.3.2.7  Block Write
        8. 27.3.2.8  Block Read
        9. 27.3.2.9  Block Write-Block Read Process Call
        10. 27.3.2.10 Alert Response
        11. 27.3.2.11 Extended Command
        12. 27.3.2.12 Group Command
    4. 27.4 Master Mode Operation
      1. 27.4.1 Configuration
      2. 27.4.2 Message Handling
        1. 27.4.2.1  Quick Command
        2. 27.4.2.2  Send Byte
        3. 27.4.2.3  Receive Byte
        4. 27.4.2.4  Write Byte and Write Word
        5. 27.4.2.5  Read Byte and Read Word
        6. 27.4.2.6  Process Call
        7. 27.4.2.7  Block Write
        8. 27.4.2.8  Block Read
        9. 27.4.2.9  Block Write-Block Read Process Call
        10. 27.4.2.10 Alert Response
        11. 27.4.2.11 Extended Command
        12. 27.4.2.12 Group Command
    5. 27.5 PMBus Registers
      1. 27.5.1 PMBUS Base Address Table
      2. 27.5.2 PMBUS_REGS Registers
      3. 27.5.3 PMBUS Registers to Driverlib Functions
  30. 28Controller Area Network (CAN)
    1. 28.1  Introduction
      1. 28.1.1 DCAN Related Collateral
      2. 28.1.2 Features
      3. 28.1.3 Block Diagram
        1. 28.1.3.1 CAN Core
        2. 28.1.3.2 Message Handler
        3. 28.1.3.3 Message RAM
        4. 28.1.3.4 Registers and Message Object Access (IFx)
    2. 28.2  Functional Description
      1. 28.2.1 Configuring Device Pins
      2. 28.2.2 Address/Data Bus Bridge
    3. 28.3  Operating Modes
      1. 28.3.1 Initialization
      2. 28.3.2 CAN Message Transfer (Normal Operation)
        1. 28.3.2.1 Disabled Automatic Retransmission
        2. 28.3.2.2 Auto-Bus-On
      3. 28.3.3 Test Modes
        1. 28.3.3.1 Silent Mode
        2. 28.3.3.2 Loopback Mode
        3. 28.3.3.3 External Loopback Mode
        4. 28.3.3.4 Loopback Combined with Silent Mode
    4. 28.4  Multiple Clock Source
    5. 28.5  Interrupt Functionality
      1. 28.5.1 Message Object Interrupts
      2. 28.5.2 Status Change Interrupts
      3. 28.5.3 Error Interrupts
      4. 28.5.4 Peripheral Interrupt Expansion (PIE) Module Nomenclature for DCAN Interrupts
      5. 28.5.5 Interrupt Topologies
    6. 28.6  DMA Functionality
    7. 28.7  Parity Check Mechanism
      1. 28.7.1 Behavior on Parity Error
    8. 28.8  Debug Mode
    9. 28.9  Module Initialization
    10. 28.10 Configuration of Message Objects
      1. 28.10.1 Configuration of a Transmit Object for Data Frames
      2. 28.10.2 Configuration of a Transmit Object for Remote Frames
      3. 28.10.3 Configuration of a Single Receive Object for Data Frames
      4. 28.10.4 Configuration of a Single Receive Object for Remote Frames
      5. 28.10.5 Configuration of a FIFO Buffer
    11. 28.11 Message Handling
      1. 28.11.1  Message Handler Overview
      2. 28.11.2  Receive/Transmit Priority
      3. 28.11.3  Transmission of Messages in Event Driven CAN Communication
      4. 28.11.4  Updating a Transmit Object
      5. 28.11.5  Changing a Transmit Object
      6. 28.11.6  Acceptance Filtering of Received Messages
      7. 28.11.7  Reception of Data Frames
      8. 28.11.8  Reception of Remote Frames
      9. 28.11.9  Reading Received Messages
      10. 28.11.10 Requesting New Data for a Receive Object
      11. 28.11.11 Storing Received Messages in FIFO Buffers
      12. 28.11.12 Reading from a FIFO Buffer
    12. 28.12 CAN Bit Timing
      1. 28.12.1 Bit Time and Bit Rate
        1. 28.12.1.1 Synchronization Segment
        2. 28.12.1.2 Propagation Time Segment
        3. 28.12.1.3 Phase Buffer Segments and Synchronization
        4. 28.12.1.4 Oscillator Tolerance Range
      2. 28.12.2 Configuration of the CAN Bit Timing
        1. 28.12.2.1 Calculation of the Bit Timing Parameters
        2. 28.12.2.2 Example for Bit Timing at High Baudrate
        3. 28.12.2.3 Example for Bit Timing at Low Baudrate
    13. 28.13 Message Interface Register Sets
      1. 28.13.1 Message Interface Register Sets 1 and 2 (IF1 and IF2)
      2. 28.13.2 Message Interface Register Set 3 (IF3)
    14. 28.14 Message RAM
      1. 28.14.1 Structure of Message Objects
      2. 28.14.2 Addressing Message Objects in RAM
      3. 28.14.3 Message RAM Representation in Debug Mode
    15. 28.15 Software
      1. 28.15.1 CAN Examples
        1. 28.15.1.1 CAN External Loopback
        2. 28.15.1.2 CAN External Loopback with Interrupts
        3. 28.15.1.3 CAN External Loopback with DMA
        4. 28.15.1.4 CAN Transmit and Receive Configurations
        5. 28.15.1.5 CAN Error Generation Example
        6. 28.15.1.6 CAN Remote Request Loopback
        7. 28.15.1.7 CAN example that illustrates the usage of Mask registers
    16. 28.16 CAN Registers
      1. 28.16.1 CAN Base Address Table
      2. 28.16.2 CAN_REGS Registers
      3. 28.16.3 CAN Registers to Driverlib Functions
  31. 29Modular Controller Area Network (MCAN)
    1. 29.1 MCAN Introduction
      1. 29.1.1 MCAN Related Collateral
      2. 29.1.2 MCAN Features
    2. 29.2 MCAN Environment
    3. 29.3 CAN Network Basics
    4. 29.4 MCAN Integration
    5. 29.5 MCAN Functional Description
      1. 29.5.1  Module Clocking Requirements
      2. 29.5.2  Interrupt Requests
      3. 29.5.3  Operating Modes
        1. 29.5.3.1 Software Initialization
        2. 29.5.3.2 Normal Operation
        3. 29.5.3.3 CAN FD Operation
      4. 29.5.4  Transmitter Delay Compensation
        1. 29.5.4.1 Description
        2. 29.5.4.2 Transmitter Delay Compensation Measurement
      5. 29.5.5  Restricted Operation Mode
      6. 29.5.6  Bus Monitoring Mode
      7. 29.5.7  Disabled Automatic Retransmission (DAR) Mode
        1. 29.5.7.1 Frame Transmission in DAR Mode
      8. 29.5.8  Clock Stop Mode
        1. 29.5.8.1 Suspend Mode
        2. 29.5.8.2 Wakeup Request
      9. 29.5.9  Test Modes
        1. 29.5.9.1 External Loop Back Mode
        2. 29.5.9.2 Internal Loop Back Mode
      10. 29.5.10 Timestamp Generation
        1. 29.5.10.1 External Timestamp Counter
      11. 29.5.11 Timeout Counter
      12. 29.5.12 Safety
        1. 29.5.12.1 ECC Wrapper
        2. 29.5.12.2 ECC Aggregator
          1. 29.5.12.2.1 ECC Aggregator Overview
          2. 29.5.12.2.2 ECC Aggregator Registers
        3. 29.5.12.3 Reads to ECC Control and Status Registers
        4. 29.5.12.4 ECC Interrupts
      13. 29.5.13 Rx Handling
        1. 29.5.13.1 Acceptance Filtering
          1. 29.5.13.1.1 Range Filter
          2. 29.5.13.1.2 Filter for Specific IDs
          3. 29.5.13.1.3 Classic Bit Mask Filter
          4. 29.5.13.1.4 Standard Message ID Filtering
          5. 29.5.13.1.5 Extended Message ID Filtering
        2. 29.5.13.2 Rx FIFOs
          1. 29.5.13.2.1 Rx FIFO Blocking Mode
          2. 29.5.13.2.2 Rx FIFO Overwrite Mode
        3. 29.5.13.3 Dedicated Rx Buffers
          1. 29.5.13.3.1 Rx Buffer Handling
      14. 29.5.14 Tx Handling
        1. 29.5.14.1 Transmit Pause
        2. 29.5.14.2 Dedicated Tx Buffers
        3. 29.5.14.3 Tx FIFO
        4. 29.5.14.4 Tx Queue
        5. 29.5.14.5 Mixed Dedicated Tx Buffers/Tx FIFO
        6. 29.5.14.6 Mixed Dedicated Tx Buffers/Tx Queue
        7. 29.5.14.7 Transmit Cancellation
        8. 29.5.14.8 Tx Event Handling
      15. 29.5.15 FIFO Acknowledge Handling
      16. 29.5.16 Message RAM
        1. 29.5.16.1 Message RAM Configuration
        2. 29.5.16.2 Rx Buffer and FIFO Element
        3. 29.5.16.3 Tx Buffer Element
        4. 29.5.16.4 Tx Event FIFO Element
        5. 29.5.16.5 Standard Message ID Filter Element
        6. 29.5.16.6 Extended Message ID Filter Element
    6. 29.6 Software
      1. 29.6.1 MCAN Examples
        1. 29.6.1.1  MCAN Internal Loopback with Interrupt
        2. 29.6.1.2  MCAN Loopback with Interrupts Example Using SYSCONFIG Tool
        3. 29.6.1.3  MCAN receive using Rx Buffer
        4. 29.6.1.4  MCAN External Reception (with mask filter) into RX-FIFO1
        5. 29.6.1.5  MCAN Classic frames transmission using Tx Buffer
        6. 29.6.1.6  MCAN External Reception (with RANGE filter) into RX-FIFO1
        7. 29.6.1.7  MCAN External Transmit using Tx Buffer
        8. 29.6.1.8  MCAN receive using Rx Buffer
        9. 29.6.1.9  MCAN Internal Loopback with Interrupt
        10. 29.6.1.10 MCAN External Transmit using Tx Buffer
    7. 29.7 MCAN Registers
      1. 29.7.1 MCAN Base Address Table
      2. 29.7.2 MCANSS_REGS Registers
      3. 29.7.3 MCAN_REGS Registers
      4. 29.7.4 MCAN_ERROR_REGS Registers
      5. 29.7.5 MCAN Registers to Driverlib Functions
  32. 30Local Interconnect Network (LIN)
    1. 30.1 Introduction
      1. 30.1.1 SCI Features
      2. 30.1.2 LIN Features
      3. 30.1.3 LIN Related Collateral
      4. 30.1.4 Block Diagram
    2. 30.2 Serial Communications Interface Module
      1. 30.2.1 SCI Communication Formats
        1. 30.2.1.1 SCI Frame Formats
        2. 30.2.1.2 SCI Asynchronous Timing Mode
        3. 30.2.1.3 SCI Baud Rate
          1. 30.2.1.3.1 Superfractional Divider, SCI Asynchronous Mode
        4. 30.2.1.4 SCI Multiprocessor Communication Modes
          1. 30.2.1.4.1 Idle-Line Multiprocessor Modes
          2. 30.2.1.4.2 Address-Bit Multiprocessor Mode
        5. 30.2.1.5 SCI Multibuffered Mode
      2. 30.2.2 SCI Interrupts
        1. 30.2.2.1 Transmit Interrupt
        2. 30.2.2.2 Receive Interrupt
        3. 30.2.2.3 WakeUp Interrupt
        4. 30.2.2.4 Error Interrupts
      3. 30.2.3 SCI DMA Interface
        1. 30.2.3.1 Receive DMA Requests
        2. 30.2.3.2 Transmit DMA Requests
      4. 30.2.4 SCI Configurations
        1. 30.2.4.1 Receiving Data
          1. 30.2.4.1.1 Receiving Data in Single-Buffer Mode
          2. 30.2.4.1.2 Receiving Data in Multibuffer Mode
        2. 30.2.4.2 Transmitting Data
          1. 30.2.4.2.1 Transmitting Data in Single-Buffer Mode
          2. 30.2.4.2.2 Transmitting Data in Multibuffer Mode
      5. 30.2.5 SCI Low-Power Mode
        1. 30.2.5.1 Sleep Mode for Multiprocessor Communication
    3. 30.3 Local Interconnect Network Module
      1. 30.3.1 LIN Communication Formats
        1. 30.3.1.1  LIN Standards
        2. 30.3.1.2  Message Frame
          1. 30.3.1.2.1 Message Header
          2. 30.3.1.2.2 Response
        3. 30.3.1.3  Synchronizer
        4. 30.3.1.4  Baud Rate
          1. 30.3.1.4.1 Fractional Divider
          2. 30.3.1.4.2 Superfractional Divider
            1. 30.3.1.4.2.1 Superfractional Divider In LIN Mode
        5. 30.3.1.5  Header Generation
          1. 30.3.1.5.1 Event Triggered Frame Handling
          2. 30.3.1.5.2 Header Reception and Adaptive Baud Rate
        6. 30.3.1.6  Extended Frames Handling
        7. 30.3.1.7  Timeout Control
          1. 30.3.1.7.1 No-Response Error (NRE)
          2. 30.3.1.7.2 Bus Idle Detection
          3. 30.3.1.7.3 Timeout After Wakeup Signal and Timeout After Three Wakeup Signals
        8. 30.3.1.8  TXRX Error Detector (TED)
          1. 30.3.1.8.1 Bit Errors
          2. 30.3.1.8.2 Physical Bus Errors
          3. 30.3.1.8.3 ID Parity Errors
          4. 30.3.1.8.4 Checksum Errors
        9. 30.3.1.9  Message Filtering and Validation
        10. 30.3.1.10 Receive Buffers
        11. 30.3.1.11 Transmit Buffers
      2. 30.3.2 LIN Interrupts
      3. 30.3.3 Servicing LIN Interrupts
      4. 30.3.4 LIN DMA Interface
        1. 30.3.4.1 LIN Receive DMA Requests
        2. 30.3.4.2 LIN Transmit DMA Requests
      5. 30.3.5 LIN Configurations
        1. 30.3.5.1 Receiving Data
          1. 30.3.5.1.1 Receiving Data in Single-Buffer Mode
          2. 30.3.5.1.2 Receiving Data in Multibuffer Mode
        2. 30.3.5.2 Transmitting Data
          1. 30.3.5.2.1 Transmitting Data in Single-Buffer Mode
          2. 30.3.5.2.2 Transmitting Data in Multibuffer Mode
    4. 30.4 Low-Power Mode
      1. 30.4.1 Entering Sleep Mode
      2. 30.4.2 Wakeup
      3. 30.4.3 Wakeup Timeouts
    5. 30.5 Emulation Mode
    6. 30.6 Software
      1. 30.6.1 LIN Examples
        1. 30.6.1.1 LIN Internal Loopback with Interrupts
        2. 30.6.1.2 LIN SCI Mode Internal Loopback with Interrupts
        3. 30.6.1.3 LIN SCI MODE Internal Loopback with DMA
        4. 30.6.1.4 LIN Internal Loopback without interrupts(polled mode)
        5. 30.6.1.5 LIN Internal Loopback with Interrupts using Sysconfig
        6. 30.6.1.6 LIN Incomplete Header Detection
        7. 30.6.1.7 LIN SCI MODE (Single Buffer) Internal Loopback with DMA
        8. 30.6.1.8 LIN External Loopback without interrupts(polled mode)
    7. 30.7 SCI/LIN Registers
      1. 30.7.1 LIN Base Address Table
      2. 30.7.2 LIN_REGS Registers
      3. 30.7.3 LIN Registers to Driverlib Functions
  33. 31Fast Serial Interface (FSI)
    1. 31.1 Introduction
      1. 31.1.1 FSI Related Collateral
      2. 31.1.2 FSI Features
    2. 31.2 System-level Integration
      1. 31.2.1 CPU Interface
      2. 31.2.2 Signal Description
        1. 31.2.2.1 Configuring Device Pins
      3. 31.2.3 FSI Interrupts
        1. 31.2.3.1 Transmitter Interrupts
        2. 31.2.3.2 Receiver Interrupts
        3. 31.2.3.3 Configuring Interrupts
        4. 31.2.3.4 Handling Interrupts
      4. 31.2.4 CLA Task Triggering
      5. 31.2.5 DMA Interface
      6. 31.2.6 External Frame Trigger Mux
    3. 31.3 FSI Functional Description
      1. 31.3.1  Introduction to Operation
      2. 31.3.2  FSI Transmitter Module
        1. 31.3.2.1 Initialization
        2. 31.3.2.2 FSI_TX Clocking
        3. 31.3.2.3 Transmitting Frames
          1. 31.3.2.3.1 Software Triggered Frames
          2. 31.3.2.3.2 Externally Triggered Frames
          3. 31.3.2.3.3 Ping Frame Generation
            1. 31.3.2.3.3.1 Automatic Ping Frames
            2. 31.3.2.3.3.2 Software Triggered Ping Frame
            3. 31.3.2.3.3.3 Externally Triggered Ping Frame
          4. 31.3.2.3.4 Transmitting Frames with DMA
        4. 31.3.2.4 Transmit Buffer Management
        5. 31.3.2.5 CRC Submodule
        6. 31.3.2.6 Conditions in Which the Transmitter Must Undergo a Soft Reset
        7. 31.3.2.7 Reset
      3. 31.3.3  FSI Receiver Module
        1. 31.3.3.1  Initialization
        2. 31.3.3.2  FSI_RX Clocking
        3. 31.3.3.3  Receiving Frames
          1. 31.3.3.3.1 Receiving Frames with DMA
        4. 31.3.3.4  Ping Frame Watchdog
        5. 31.3.3.5  Frame Watchdog
        6. 31.3.3.6  Delay Line Control
        7. 31.3.3.7  Buffer Management
        8. 31.3.3.8  CRC Submodule
        9. 31.3.3.9  Using the Zero Bits of the Receiver Tag Registers
        10. 31.3.3.10 Conditions in Which the Receiver Must Undergo a Soft Reset
        11. 31.3.3.11 FSI_RX Reset
      4. 31.3.4  Frame Format
        1. 31.3.4.1 FSI Frame Phases
        2. 31.3.4.2 Frame Types
          1. 31.3.4.2.1 Ping Frames
          2. 31.3.4.2.2 Error Frames
          3. 31.3.4.2.3 Data Frames
        3. 31.3.4.3 Multi-Lane Transmission
      5. 31.3.5  Flush Sequence
      6. 31.3.6  Internal Loopback
      7. 31.3.7  CRC Generation
      8. 31.3.8  ECC Module
      9. 31.3.9  Tag Matching
      10. 31.3.10 User Data Filtering (UDATA Matching)
      11. 31.3.11 TDM Configurations
      12. 31.3.12 FSI Trigger Generation
      13. 31.3.13 FSI-SPI Compatibility Mode
        1. 31.3.13.1 Available SPI Modes
          1. 31.3.13.1.1 FSITX as SPI Master, Transmit Only
            1. 31.3.13.1.1.1 Initialization
            2. 31.3.13.1.1.2 Operation
          2. 31.3.13.1.2 FSIRX as SPI Slave, Receive Only
            1. 31.3.13.1.2.1 Initialization
            2. 31.3.13.1.2.2 Operation
          3. 31.3.13.1.3 FSITX and FSIRX Emulating a Full Duplex SPI Master
            1. 31.3.13.1.3.1 Initialization
            2. 31.3.13.1.3.2 Operation
    4. 31.4 FSI Programing Guide
      1. 31.4.1 Establishing the Communication Link
        1. 31.4.1.1 Establishing the Communication Link from the Master Device
        2. 31.4.1.2 Establishing the Communication Link from the Slave Device
      2. 31.4.2 Register Protection
      3. 31.4.3 Emulation Mode
    5. 31.5 Software
      1. 31.5.1 FSI Examples
        1. 31.5.1.1  FSI Loopback:CPU Control
        2. 31.5.1.2  FSI Loopback CLA control
        3. 31.5.1.3  FSI DMA frame transfers:DMA Control
        4. 31.5.1.4  FSI data transfer by external trigger
        5. 31.5.1.5  FSI data transfers upon CPU Timer event
        6. 31.5.1.6  FSI and SPI communication(fsi_ex6_spi_main_tx)
        7. 31.5.1.7  FSI and SPI communication(fsi_ex7_spi_remote_rx)
        8. 31.5.1.8  FSI P2Point Connection:Rx Side
        9. 31.5.1.9  FSI P2Point Connection:Tx Side
        10. 31.5.1.10 FSI daisy chain topology, lead device example
        11. 31.5.1.11 FSI daisy chain topology, node device example
    6. 31.6 FSI Registers
      1. 31.6.1 FSI Base Address Table
      2. 31.6.2 FSI_TX_REGS Registers
      3. 31.6.3 FSI_RX_REGS Registers
      4. 31.6.4 FSI Registers to Driverlib Functions
  34. 32Configurable Logic Block (CLB)
    1. 32.1 Introduction
      1. 32.1.1 CLB Related Collateral
    2. 32.2 Description
      1. 32.2.1 CLB Clock
    3. 32.3 CLB Input/Output Connection
      1. 32.3.1 Overview
      2. 32.3.2 CLB Input Selection
      3. 32.3.3 CLB Output Selection
      4. 32.3.4 CLB Output Signal Multiplexer
    4. 32.4 CLB Tile
      1. 32.4.1 Static Switch Block
      2. 32.4.2 Counter Block
        1. 32.4.2.1 Counter Description
        2. 32.4.2.2 Counter Operation
        3. 32.4.2.3 Serializer Mode
        4. 32.4.2.4 Linear Feedback Shift Register (LFSR) Mode
      3. 32.4.3 FSM Block
      4. 32.4.4 LUT4 Block
      5. 32.4.5 Output LUT Block
      6. 32.4.6 Asynchronous Output Conditioning (AOC) Block
      7. 32.4.7 High Level Controller (HLC)
        1. 32.4.7.1 High Level Controller Events
        2. 32.4.7.2 High Level Controller Instructions
        3. 32.4.7.3 <Src> and <Dest>
        4. 32.4.7.4 Operation of the PUSH and PULL Instructions (Overflow and Underflow Detection)
    5. 32.5 CPU Interface
      1. 32.5.1 Register Description
      2. 32.5.2 Non-Memory Mapped Registers
    6. 32.6 DMA Access
    7. 32.7 CLB Data Export Through SPI RX Buffer
    8. 32.8 Software
      1. 32.8.1 CLB Examples
        1. 32.8.1.1  CLB Empty Project
        2. 32.8.1.2  CLB Combinational Logic
        3. 32.8.1.3  CLB GPIO Input Filter
        4. 32.8.1.4  CLB Auxilary PWM
        5. 32.8.1.5  CLB PWM Protection
        6. 32.8.1.6  CLB Event Window
        7. 32.8.1.7  CLB Signal Generator
        8. 32.8.1.8  CLB State Machine
        9. 32.8.1.9  CLB External Signal AND Gate
        10. 32.8.1.10 CLB Timer
        11. 32.8.1.11 CLB Timer Two States
        12. 32.8.1.12 CLB Interrupt Tag
        13. 32.8.1.13 CLB Output Intersect
        14. 32.8.1.14 CLB PUSH PULL
        15. 32.8.1.15 CLB Multi Tile
        16. 32.8.1.16 CLB Glue Logic
        17. 32.8.1.17 CLB based One-shot PWM
        18. 32.8.1.18 CLB AOC Control
        19. 32.8.1.19 CLB AOC Release Control
        20. 32.8.1.20 CLB XBARs
        21. 32.8.1.21 CLB AOC Control
        22. 32.8.1.22 CLB Serializer
        23. 32.8.1.23 CLB LFSR
        24. 32.8.1.24 CLB Lock Output Mask
        25. 32.8.1.25 CLB INPUT Pipeline Mode
        26. 32.8.1.26 CLB Clocking and PIPELINE Mode
        27. 32.8.1.27 CLB SPI Data Export
        28. 32.8.1.28 CLB SPI Data Export DMA
        29. 32.8.1.29 CLB Trip Zone Timestamp
        30. 32.8.1.30 CLB CRC
        31. 32.8.1.31 CLB TDM Serial Port
        32. 32.8.1.32 CLB LED Driver
    9. 32.9 CLB Registers
      1. 32.9.1 CLB Base Address Table
      2. 32.9.2 CLB_LOGIC_CONFIG_REGS Registers
      3. 32.9.3 CLB_LOGIC_CONTROL_REGS Registers
      4. 32.9.4 CLB_DATA_EXCHANGE_REGS Registers
      5. 32.9.5 CLB Registers to Driverlib Functions
  35. 33Advanced Encryption Standard (AES) Accelerator
    1. 33.1 Introduction
      1. 33.1.1 AES Block Diagram
        1. 33.1.1.1 Interfaces
        2. 33.1.1.2 AES Subsystem
        3. 33.1.1.3 AES Wide-Bus Engine
      2. 33.1.2 AES Algorithm
    2. 33.2 AES Operating Modes
      1. 33.2.1  GCM Operation
      2. 33.2.2  CCM Operation
      3. 33.2.3  XTS Operation
      4. 33.2.4  ECB Feedback Mode
      5. 33.2.5  CBC Feedback Mode
      6. 33.2.6  CTR and ICM Feedback Modes
      7. 33.2.7  CFB Mode
      8. 33.2.8  F8 Mode
      9. 33.2.9  F9 Operation
      10. 33.2.10 CBC-MAC Operation
    3. 33.3 Extended and Combined Modes of Operations
      1. 33.3.1 GCM Protocol Operation
      2. 33.3.2 CCM Protocol Operation
      3. 33.3.3 Hardware Requests
    4. 33.4 AES Module Programming Guide
      1. 33.4.1 AES Low-Level Programming Models
        1. 33.4.1.1 Global Initialization
        2. 33.4.1.2 AES Operating Modes Configuration
        3. 33.4.1.3 AES Mode Configurations
        4. 33.4.1.4 AES Events Servicing
    5. 33.5 Software
      1. 33.5.1 AES Examples
        1. 33.5.1.1 AES ECB Encryption Example
        2. 33.5.1.2 AES ECB De-cryption Example
        3. 33.5.1.3 AES GCM Encryption Example
        4. 33.5.1.4 AES GCM Decryption Example
    6. 33.6 AES Registers
      1. 33.6.1 AES Base Address Table
      2. 33.6.2 AES_REGS Registers
      3. 33.6.3 AES_SS_REGS Registers
      4. 33.6.4 Register to Driverlib Function Mapping
        1. 33.6.4.1 AES Registers to Driverlib Functions
        2. 33.6.4.2 AES_SS Registers to Driverlib Functions
  36. 34Embedded Pattern Generator (EPG)
    1. 34.1 Introduction
      1. 34.1.1 Features
      2. 34.1.2 EPG Block Diagram
      3. 34.1.3 EPG Related Collateral
    2. 34.2 Clock Generator Modules
      1. 34.2.1 DCLK (50% duty cycle clock)
      2. 34.2.2 Clock Stop
    3. 34.3 Signal Generator Module
    4. 34.4 EPG Peripheral Signal Mux Selection
    5. 34.5 EPG Example Use Cases
      1. 34.5.1 EPG Example: Synchronous Clocks with Offset
        1. 34.5.1.1 Synchronous Clocks with Offset Register Configuration
      2. 34.5.2 EPG Example: Serial Data Bit Stream (LSB first)
        1. 34.5.2.1 Serial Data Bit Stream (LSB first) Register Configuration
      3. 34.5.3 EPG Example: Serial Data Bit Stream (MSB first)
        1. 34.5.3.1 Serial Data Bit Stream (MSB first) Register Configuration
    6. 34.6 EPG Interrupt
    7. 34.7 Software
      1. 34.7.1 EPG Examples
        1. 34.7.1.1 EPG Generating Synchronous Clocks
        2. 34.7.1.2 EPG Generating Two Offset Clocks
        3. 34.7.1.3 EPG Generating Two Offset Clocks With SIGGEN
        4. 34.7.1.4 EPG Generate Serial Data
        5. 34.7.1.5 EPG Generate Serial Data Shift Mode
    8. 34.8 EPG Registers
      1. 34.8.1 EPG Base Address Table
      2. 34.8.2 EPG_REGS Registers
      3. 34.8.3 EPG_MUX_REGS Registers
      4. 34.8.4 EPG Registers to Driverlib Functions
  37. 35Revision History

31.2.3.4 Handling Interrupts

Inside the interrupt service routine (ISR), the user must clear the event flag using the EVT_CLR register and then acknowledge the CPU interrupt.

If the one event occurs multiple times before the corresponding bit is cleared by software, no new interrupt is generated.

If multiple events occur simultaneously, or very close in time, it is possible to handle multiple conditions within a single interrupt. Each flag is independently set by hardware and must be cleared by application software. If multiple different events occur, the ISR can handle each in whatever order is deemed necessary by the application. It is not advisable to clear the full interrupt status register in every ISR. This can cause the application to miss events that can be detrimental to the application. A sample sequence for handling interrupts on the receiver follows; the transmitter routine is similar.

  • On receiving an interrupt, copy the current state of the receive event and error status flag register (RX_EVT_STS) into a local snapshot variable.
  • Read all of the bits from the snapshot to determine the events that require action.
  • Perform the necessary actions for each of the events seen in the snapshot.
  • Write to the receive event and error clear register (RX_EVT_CLR) with the snapshot to clear only those interrupts that were set at the beginning of the ISR.
  • Repeat this sequence for every generated ISR.

There is a chance that another event occurred during the just-handled ISR since only the snapshot of events was handled and then cleared; an event flag can still be set at the end of the ISR. As soon as the ISR completes, a new interrupt is generated and this flag is still set and can be handled accordingly.

Software accesses tied to multiple events and handled within the same ISR can cause race conditions that cause the software to not function as desired. For example, it is recommended to use different interrupt lines if the user wants to enable events for both ping and data frames. If both events are handled within the same interrupt line, the software can only respond to one of the events if both events occur close in time.
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