SPMU447 June   2026 CC2755P20

 

  1.   1
  2.   Read This First
    1.     About This Manual
    2.     Devices
    3.     Register, Field, and Bit Calls
    4.     Related Documentation
    5.     Trademarks
  3. 1 Architectural Overview
    1. 1.1  Target Applications
    2. 1.2  Introduction
    3. 1.3  Arm Cortex-M33
      1. 1.3.1 Processor Core
      2. 1.3.2 SysTick Timer
      3. 1.3.3 Nested Vectored Interrupt Controller
      4. 1.3.4 System Control Block (SCB)
      5. 1.3.5 TI Machine Learning Instruction Extensions
    4. 1.4  On-Chip Memory
      1. 1.4.1 SRAM
      2. 1.4.2 FLASH
      3. 1.4.3 ROM
    5. 1.5  Power Supply System
      1. 1.5.1 VDDS
      2. 1.5.2 VDDIO
      3. 1.5.3 VDDR
      4. 1.5.4 VDDD Digital Core Supply
      5. 1.5.5 DC/DC Converter
    6. 1.6  Radio
    7. 1.7  Hardware Security Module
    8. 1.8  AES 128-Bit Cryptographic Accelerator
    9. 1.9  System Timer (SYSTIM)
    10. 1.10 General Purpose Timers (LGPT)
    11. 1.11 Always-ON (AON) or Ultra-Low Leakage (ULL) Domain
      1. 1.11.1 Watchdog Timer
      2. 1.11.2 Battery and Temperature Monitor
      3. 1.11.3 Voltage Glitch Monitor (VGM)
      4. 1.11.4 Real-Time Clock (RTC)
      5. 1.11.5 Low Power Comparator
    12. 1.12 Direct Memory Access
    13. 1.13 System Control and Clock
    14. 1.14 Communication Peripherals
      1. 1.14.1 UART
      2. 1.14.2 I2C
      3. 1.14.3 SPI
      4. 1.14.4 CAN-FD
      5. 1.14.5 I2S
    15. 1.15 Programmable I/Os
    16. 1.16 Algorithm Processing Unit (APU)
    17. 1.17 Serial Wire Debug (SWD)
  4. 2 Arm® Cortex®-M33 Processor
    1. 2.1 Arm® Cortex®-M33 Processor Introduction
    2. 2.2 M33 Instantiation Parameters
    3. 2.3 Arm® Cortex®-M33 System Peripheral Details
      1. 2.3.1 Floating Point Unit (FPU)
      2. 2.3.2 Memory Protection Unit (MPU)
      3. 2.3.3 Digital Signal Processing (DSP)
      4. 2.3.4 Security Attribution Unit (SAU)
      5. 2.3.5 System Timer (SysTick)
      6. 2.3.6 Nested Vectored Interrupt Controller (NVIC)
      7. 2.3.7 System Control Block (SCB)
      8. 2.3.8 System Control Space (SCS)
    4. 2.4 CPU Sub-System Peripheral Details
      1. 2.4.1 Trace Port Interface Unit (TPIU)
      2. 2.4.2 DAP Bridge and Debug Authentication
      3. 2.4.3 Implementation Defined Attribution Unit (IDAU)
      4. 2.4.4 Custom Datapath Extension (CDE)
    5. 2.5 Programming Model
      1. 2.5.1 Modes of Operation and Execution
        1. 2.5.1.1 Security States
        2. 2.5.1.2 Operating Modes
        3. 2.5.1.3 Operating States
        4. 2.5.1.4 Privileged Access and Unprivileged User Access
      2. 2.5.2 Instruction Set Summary
      3. 2.5.3 Memory Model
        1. 2.5.3.1 Private Peripheral Bus
        2. 2.5.3.2 Unaligned Accesses
      4. 2.5.4 Processor Core Registers Summary
      5. 2.5.5 Exceptions
        1. 2.5.5.1 Exception Handling and Prioritization
    6. 2.6 TrustZone
      1. 2.6.1 Overview
      2. 2.6.2 M33 Configuration
      3. 2.6.3 Description of Elements
        1. 2.6.3.1 IDAU (Implementation Defined Attribution Unit)
          1. 2.6.3.1.1 Expected Use
        2. 2.6.3.2 Gaskets
          1. 2.6.3.2.1 Periphery Gasket
          2. 2.6.3.2.2 Controller Gasket
        3. 2.6.3.3 Memories
        4. 2.6.3.4 TCM
      4. 2.6.4 TCM Registers
    7. 2.7 Arm® Cortex®-M33 Registers
      1. 2.7.1  CPU_ROM_TABLE Registers
      2. 2.7.2  TPIU Registers
      3. 2.7.3  DCB Registers
      4. 2.7.4  DIB Registers
      5. 2.7.5  DWT Registers
      6. 2.7.6  FPB Registers
      7. 2.7.7  FPE Registers
      8. 2.7.8  ICB Registers
      9. 2.7.9  ITM Registers
      10. 2.7.10 MPU Registers
      11. 2.7.11 NVIC Registers
      12. 2.7.12 SAU Registers
      13. 2.7.13 SCB Registers
      14. 2.7.14 SYSTICK Registers
      15. 2.7.15 Clock Control
      16. 2.7.16 Protocol Descriptions
      17. 2.7.17 Reset Considerations
        1. 2.7.17.1 Hardware Reset Considerations
      18. 2.7.18 Initialization
      19. 2.7.19 Interrupt and Event Support
        1. 2.7.19.1 Connection to Event Fabric
      20. 2.7.20 Power Management
  5. 3 Memory Map
    1. 3.1 Memory Map
  6. 4 Interrupts and Events
    1. 4.1 Exception Model
      1. 4.1.1 Exception States
      2. 4.1.2 Exception Types
      3. 4.1.3 Exception Handlers
      4. 4.1.4 Vector Table
      5. 4.1.5 Exception Priorities
      6. 4.1.6 Interrupt Priority Grouping
      7. 4.1.7 Exception Entry and Return
        1. 4.1.7.1 Exception Entry
        2. 4.1.7.2 Exception Return
    2. 4.2 Fault Handling
      1. 4.2.1 Fault Types
      2. 4.2.2 Fault Escalation to HardFault
      3. 4.2.3 Fault Status Registers and Fault Address Registers
      4. 4.2.4 Lockup
    3. 4.3 Security State Switches
    4. 4.4 Event Fabric
      1. 4.4.1 Introduction
      2. 4.4.2 Overview
      3. 4.4.3 Registers
      4. 4.4.4 AON Event Fabric
        1. 4.4.4.1 AON Common Input Events List
        2. 4.4.4.2 AON Event Subscribers
        3. 4.4.4.3 Power Management Controller (PMCTL)
        4. 4.4.4.4 Real Time Clock (RTC)
        5. 4.4.4.5 AON to MCU Event Fabric
      5. 4.4.5 MCU Event Fabric
        1. 4.4.5.1 Common Input Event List
        2. 4.4.5.2 MCU Event Subscribers
          1. 4.4.5.2.1 System CPU
          2. 4.4.5.2.2 Non-Maskable Interrupt (NMI)
    5. 4.5 Digital Test Bus (DTB)
    6. 4.6 EVTSVT Registers
    7. 4.7 EVTULL Registers
  7. 5 Debug Subsystem
    1. 5.1  Introduction
    2. 5.2  Block Diagram
    3. 5.3  Overview
      1. 5.3.1 Physical Interface
      2. 5.3.2 Debug Access Ports
    4. 5.4  Debug Features
      1. 5.4.1 Processor Debug
      2. 5.4.2 Breakpoint Unit (BPU)
      3. 5.4.3 Peripheral Debug
    5. 5.5  Behavior in Low Power Modes
    6. 5.6  Restricting Debug Access
    7. 5.7  Mailbox (DSSM)
    8. 5.8  Mailbox Events
      1. 5.8.1 CPU Interrupt Event (AON_DBG_COMB)
    9. 5.9  Software Considerations
    10. 5.10 DBGSS Registers
  8. 6 Power, Reset, and Clocking
    1. 6.1 Introduction
    2. 6.2 System CPU Modes
    3. 6.3 Supply System
      1. 6.3.1 Internal DC/DC Converter and Global LDO
    4. 6.4 Power States
      1. 6.4.1 RESET
      2. 6.4.2 SHUTDOWN
      3. 6.4.3 ACTIVE
      4. 6.4.4 IDLE
      5. 6.4.5 STANDBY
      6. 6.4.6 PMCTL Registers
    5. 6.5 Digital Power Partitioning
    6. 6.6 Clocks
      1. 6.6.1 Block Diagram
      2. 6.6.2 LF clock
        1. 6.6.2.1 LFINC Measurement Mechanism
        2. 6.6.2.2 LFINC Filtering
      3. 6.6.3 HFOSC
        1. 6.6.3.1 HFOSC Control and Qualification
        2. 6.6.3.2 HFOSC Tracking Loop
      4. 6.6.4 AFOSC
        1. 6.6.4.1 AFOSC Control and Qualification
        2. 6.6.4.2 AFOSC Tracking Loop
        3. 6.6.4.3 AFOSC Ratio
      5. 6.6.5 CLKSVT
      6. 6.6.6 CLKULL
      7. 6.6.7 CKMD Registers
      8. 6.6.8 CLKCTL Registers
    7. 6.7 Resets
      1. 6.7.1 Watchdog Timer (WDT)
      2. 6.7.2 RTC Reset
      3. 6.7.3 LF Loss Detection
    8. 6.8 AON (REG3V3) Register Bank
  9. 7 Internal Memory
    1. 7.1 SRAM
      1. 7.1.1 Overview
        1. 7.1.1.1 Purpose of the Peripheral
        2. 7.1.1.2 Features
        3. 7.1.1.3 Functional Block Diagram
      2. 7.1.2 Peripheral Functional Description
        1. 7.1.2.1 Parity Error Detection
          1. 7.1.2.1.1 Parity Error Debug Register
        2. 7.1.2.2 Extension Mode
        3. 7.1.2.3 Initialization
        4. 7.1.2.4 TrustZone Watermarking
      3. 7.1.3 SRAMCTRL Registers
    2. 7.2 VIMS
      1. 7.2.1 Overview
        1. 7.2.1.1 Purpose of the Peripheral
        2. 7.2.1.2 Features
        3. 7.2.1.3 Functional Block Diagram
      2. 7.2.2 Peripheral Functional Description
        1. 7.2.2.1 Dedicated 8KB CPU Cache
        2. 7.2.2.2 Dedicated 2KB HSM Cache
        3. 7.2.2.3 Dedicated 128-Bit Line Buffer
        4. 7.2.2.4 ROM
        5. 7.2.2.5 Flash
        6. 7.2.2.6 Auxiliary Regions
        7. 7.2.2.7 Flash Partition and Protection
          1. 7.2.2.7.1 Main Region
          2. 7.2.2.7.2 Read Protection
          3. 7.2.2.7.3 Sticky Write/Erase Protection
        8. 7.2.2.8 TrustZone Watermark
        9. 7.2.2.9 Debug Access
      3. 7.2.3 VIMS Registers
    3. 7.3 FLASH
      1. 7.3.1 FLASH Registers
  10. 8 Hardware Security Module (HSM)
    1. 8.1 Introduction
    2. 8.2 Overview
    3. 8.3 One-Time-Programmable (OTP) Controller
      1. 8.3.1 High-Level Sequence to Handle OTP Requests
    4. 8.4 Mailbox and Register Access Firewall
    5. 8.5 DMA Firewall
    6. 8.6 Coprocessor
    7. 8.7 HSM FW
      1. 8.7.1 Acquiring the Latest HSM FW
      2. 8.7.2 Programming HSM FW
      3. 8.7.3 Optional Customer Signing of HSM FW
    8. 8.8 HSM Registers
    9. 8.9 HSMCRYPTO Registers
  11. 9 Device Boot and Bootloader
    1. 9.1 Device Boot and Programming
      1. 9.1.1 Boot Flow
      2. 9.1.2 Boot Status
      3. 9.1.3 Boot Protection/Locking Mechanisms
      4. 9.1.4 Debug and Active SWD Connections at Boot
        1. 9.1.4.1 Secure Debug and Persistent Debug
      5. 9.1.5 Flashless Test Mode and Tools Client Mode
        1. 9.1.5.1 Flashless Test Mode
        2. 9.1.5.2 Tools Client Mode
      6. 9.1.6 Retest Mode and Return-to-Factory Procedure
      7. 9.1.7 Disabling SWD Debug Port
    2. 9.2 Flash Programming
      1. 9.2.1 CCFG
      2. 9.2.2 CCFG Permissions/Restrictions that Affect Flash Programming
      3. 9.2.3 SACI Flash Programming Commands
      4. 9.2.4 Flash Programming Flows
        1. 9.2.4.1 Initial Programming of a New Device
        2. 9.2.4.2 Reprogramming of Previously Programmed Device
        3. 9.2.4.3 Add User Record on Already Programmed Device as Part of Commissioning Step
        4. 9.2.4.4 Incrementally Program Ancillary Data to MAIN Flash Sectors of a Previously Programmed Device
        5. 9.2.4.5 Reprogramming of Only the Main Flash Application of a Previously Programmed Device
    3. 9.3 Device Management Command Interface
      1. 9.3.1 SACI Communication Protocol
        1. 9.3.1.1 Host Side Protocol
        2. 9.3.1.2 Command Format
        3. 9.3.1.3 Response Format
        4. 9.3.1.4 Response Result Field
        5. 9.3.1.5 Command Sequence Tag
        6. 9.3.1.6 Host Side Timeout
      2. 9.3.2 SACI Commands
        1. 9.3.2.1 Miscellaneous Commands
          1. 9.3.2.1.1 SACI_CMD_MISC_NO_OPERATION
          2. 9.3.2.1.2 SACI_CMD_MISC_GET_DIE_ID
          3. 9.3.2.1.3 SACI_CMD_MISC_GET_CCFG_USER_REC
          4. 9.3.2.1.4 SACI_CMD_GET_SECBOOT_HSMFW_UPDATE_STATUS
          5. 9.3.2.1.5 SACI_CMD_HSM_GET_SYS_INFO
        2. 9.3.2.2 Debug Commands
          1. 9.3.2.2.1 SACI_CMD_DEBUG_EXIT_SACI_HALT
          2. 9.3.2.2.2 SACI_CMD_DEBUG_EXIT_SACI_SHUTDOWN
          3. 9.3.2.2.3 SACI_CMD_DEBUG_REQ_KEY_ID
          4. 9.3.2.2.4 SACI_CMD_DEBUG_REQ_CHALLENGE
          5. 9.3.2.2.5 SACI_CMD_DEBUG_SUBMIT_CHALLENGE_RESP
          6. 9.3.2.2.6 SACI_CMD_DEBUG_CLOSE_SESSION
          7. 9.3.2.2.7 SACI_CMD_BLDR_APP_RESET_DEVICE
          8. 9.3.2.2.8 SACI_CMD_BLDR_APP_EXIT_SACI_RUN
        3. 9.3.2.3 Flash Programming Commands
          1. 9.3.2.3.1  SACI_CMD_FLASH_ERASE_CHIP
          2. 9.3.2.3.2  SACI_CMD_FLASH_ERASE_MAIN_APP
          3. 9.3.2.3.3  SACI_CMD_FLASH_PROG_CCFG_SECTOR
          4. 9.3.2.3.4  SACI_CMD_FLASH_PROG_CCFG_USER_REC
          5. 9.3.2.3.5  SACI_CMD_FLASH_PROG_SCFG_SECTOR
          6. 9.3.2.3.6  SACI_CMD_FLASH_PROG_MAIN_SECTOR
          7. 9.3.2.3.7  SACI_CMD_FLASH_PROG_MAIN_PIPELINED
          8. 9.3.2.3.8  SACI_CMD_FLASH_VERIFY_MAIN_SECTORS
          9. 9.3.2.3.9  SACI_CMD_FLASH_VERIFY_CCFG_SECTOR
          10. 9.3.2.3.10 SACI_CMD_FLASH_VERIFY_SCFG_SECTOR
    4. 9.4 Bootloader Support
      1. 9.4.1 Bootloader v.s Secure Boot
    5. 9.5 ROM Serial Bootloader
      1. 9.5.1 ROM Serial Bootloader Interfaces
        1. 9.5.1.1 Packet Handling
          1. 9.5.1.1.1 Packet Acknowledge and Not-Acknowledge Bytes
        2. 9.5.1.2 Transport Layer
          1. 9.5.1.2.1 UART Transport
            1. 9.5.1.2.1.1 UART Baud Rate Automatic Detection
          2. 9.5.1.2.2 SPI Transport
      2. 9.5.2 ROM Serial Bootloader Parameters
      3. 9.5.3 ROM Serial Bootloader Commands
        1. 9.5.3.1 BLDR_CMD_PING
        2. 9.5.3.2 BLDR_CMD_GET_STATUS
        3. 9.5.3.3 BLDR_CMD_GET_PART_ID
        4. 9.5.3.4 BLDR_CMD_RESET
        5. 9.5.3.5 BLDR_CMD_CHIP_ERASE
        6. 9.5.3.6 BLDR_CMD_CRC32
        7. 9.5.3.7 BLDR_CMD_DOWNLOAD
        8. 9.5.3.8 BLDR_CMD_DOWNLOAD_CRC
        9. 9.5.3.9 BLDR_CMD_SEND_DATA
      4. 9.5.4 Bootloader Firmware Update Example
  12. 10Device Configuration
    1. 10.1 Guidelines for Securely Configuring Your Device
      1. 10.1.1 Enabling and Configuring Secure Boot
      2. 10.1.2 Configure Debug Access
      3. 10.1.3 Configure Flash Protections
      4. 10.1.4 Configure Device Permissions
      5. 10.1.5 Configure HSM FW Update Keys
      6. 10.1.6 Configure emSensor
    2. 10.2 Factory Configuration (FCFG)
    3. 10.3 Customer Configuration (CCFG)
    4. 10.4 Security Configuration (SCFG)
  13. 11Secure Boot
    1. 11.1  Secure Boot
    2. 11.2  Execution Flow
    3. 11.3  ROM API
      1. 11.3.1 HAPI (Hardware API)
      2. 11.3.2 Registers
    4. 11.4  Configuration
      1. 11.4.1 Slot Configuration
      2. 11.4.2 Policy
        1. 11.4.2.1 Authentication Method
        2. 11.4.2.2 Authentication Algorithm
        3. 11.4.2.3 Update Mode
          1. 11.4.2.3.1 Overwrite
          2. 11.4.2.3.2 XIP Revert Enabled/Disabled
      3. 11.4.3 Key Update Key Hash
      4. 11.4.4 Key Ring
      5. 11.4.5 Boot Seed
    5. 11.5  Generic Image Format
    6. 11.6  Application Update
      1. 11.6.1 Image Format
    7. 11.7  Secondary Secure Bootloader Update
      1. 11.7.1 Image Format
      2. 11.7.2 Update Pattern
    8. 11.8  Key Update
      1. 11.8.1 Image Format
    9. 11.9  Antirollback
    10. 11.10 Version Log (VLOG)
      1. 11.10.1 Record structure
    11. 11.11 Fallback
    12. 11.12 ROM Panic
  14. 12General Purpose Timers (LGPT)
    1. 12.1 Overview
    2. 12.2 Block Diagram
    3. 12.3 Functional Description
      1. 12.3.1  Prescaler
      2. 12.3.2  Counter
      3. 12.3.3  Target
      4. 12.3.4  Channel Input Logic
      5. 12.3.5  Channel Output Logic
      6. 12.3.6  Channel Actions
        1. 12.3.6.1 Period and Pulse Width Measurement
        2. 12.3.6.2 Clear on Zero, Toggle on Compare Repeatedly
        3. 12.3.6.3 Set on Zero, Toggle on Compare Repeatedly
      7. 12.3.7  Channel Capture Configuration
      8. 12.3.8  Channel Filters
        1. 12.3.8.1 Setting up the Channel Filters
      9. 12.3.9  Synchronize Multiple LGPT Timers
      10. 12.3.10 Interrupts, ADC Trigger, and DMA Request
    4. 12.4 Timer Modes
      1. 12.4.1 Quadrature Decoder
      2. 12.4.2 DMA
      3. 12.4.3 IR Generation
      4. 12.4.4 Fault and Park
      5. 12.4.5 Deadband
      6. 12.4.6 Deadband, Fault, and Park
      7. 12.4.7 Example Application: Brushless DC (BLDC) Motor
    5. 12.5 LGPT0 Registers
    6. 12.6 LGPT1 Registers
    7. 12.7 LGPT2 Registers
    8. 12.8 LGPT3 Registers
  15. 13Algorithm Processing Unit (APU)
    1. 13.1 Introduction
    2. 13.2 APU Related Collateral
    3. 13.3 Functional Description
    4. 13.4 APU Operation
    5. 13.5 Interrupts and Events
    6. 13.6 Data Representation
    7. 13.7 Data Memory
    8. 13.8 Software
    9. 13.9 APU Registers
  16. 14Voltage Glitch Monitor (VGM)
    1. 14.1 Overview
    2. 14.2 Features and Operation
  17. 15System Timer (SYSTIM)
    1. 15.1 Overview
    2. 15.2 Block Diagram
    3. 15.3 Functional Description
      1. 15.3.1 Common Channel Features
        1. 15.3.1.1 Compare Mode
        2. 15.3.1.2 Capture Mode
        3. 15.3.1.3 Additional Channel Arming Methods
      2. 15.3.2 Interrupts and Events
    4. 15.4 SYSTIM Registers
  18. 16Real Time Clock (RTC)
    1. 16.1 Introduction
    2. 16.2 Block Diagram
    3. 16.3 Interrupts and Events
      1. 16.3.1 Input Event
      2. 16.3.2 Output Event
      3. 16.3.3 Arming and Disarming Channels
    4. 16.4 CAPTURE and COMPARE Configurations
      1. 16.4.1 CHANNEL 0 - COMPARE CHANNEL
      2. 16.4.2 CHANNEL 1—CAPTURE CHANNEL
    5. 16.5 RTC Registers
  19. 17Low Power Comparator (SYS0)
    1. 17.1 Introduction
    2. 17.2 Block Diagram
    3. 17.3 Functional Description
      1. 17.3.1 Input Selection
      2. 17.3.2 Voltage Divider
      3. 17.3.3 Hysteresis
      4. 17.3.4 Wake-Up
    4. 17.4 SYS0 Registers
  20. 18Battery Monitor, Temperature Sensor, and DCDC Controller (PMUD)
    1. 18.1 Introduction
    2. 18.2 Functional Description
      1. 18.2.1 BATMON
      2. 18.2.2 DCDC
    3. 18.3 PMUD Registers
  21. 19Micro Direct Memory Access (µDMA)
    1. 19.1 Introduction
    2. 19.2 Block Diagram
    3. 19.3 Functional Description
      1. 19.3.1  Channel Assignments
      2. 19.3.2  Priority
      3. 19.3.3  Arbitration Size
      4. 19.3.4  Request Types
        1. 19.3.4.1 Single Request
        2. 19.3.4.2 Burst Request
      5. 19.3.5  Channel Configuration
      6. 19.3.6  Transfer Modes
        1. 19.3.6.1 Stop Mode
        2. 19.3.6.2 Basic Mode
        3. 19.3.6.3 Auto Mode
        4. 19.3.6.4 Ping-Pong Mode
        5. 19.3.6.5 Memory Scatter-Gather Mode
        6. 19.3.6.6 Peripheral Scatter-Gather Mode
      7. 19.3.7  Transfer Size and Increments
      8. 19.3.8  Peripheral Interface
      9. 19.3.9  Software Request
      10. 19.3.10 Interrupts and Errors
      11. 19.3.11 Initialization and Configuration
        1. 19.3.11.1 Module Initialization
        2. 19.3.11.2 Configuring a Memory-to-Memory Transfer
        3. 19.3.11.3 Configure the Channel Attributes
        4. 19.3.11.4 Configure the Channel Control Structure
        5. 19.3.11.5 Start the Transfer
        6. 19.3.11.6 Software Considerations
    4. 19.4 DMA Registers
  22. 20Advanced Encryption Standard (AES)
    1. 20.1 Introduction
      1. 20.1.1 AES Performance
    2. 20.2 Functional Description
      1. 20.2.1 Reset Considerations
      2. 20.2.2 Interrupt and Event Support
        1. 20.2.2.1 Interrupt Events and Requests
        2. 20.2.2.2 Connection to Event Fabric
      3. 20.2.3 µDMA
        1. 20.2.3.1 µDMA Example
    3. 20.3 Encryption and Decryption Configuration
      1. 20.3.1  CBC-MAC (Cipher Block Chaining-Message Authentication Code)
      2. 20.3.2  CBC (Cipher Block Chaining) Encryption
      3. 20.3.3  CBC Decryption
      4. 20.3.4  CTR (Counter) Encryption/Decryption
      5. 20.3.5  ECB (Electronic Code Book) Encryption
      6. 20.3.6  ECB Decryption
      7. 20.3.7  CFB (Cipher Feedback) Encryption
      8. 20.3.8  CFB Decryption
      9. 20.3.9  OFB (Open Feedback) Encryption
      10. 20.3.10 OFB Decryption
      11. 20.3.11 PCBC (Propagating Cipher Block Chaining) Encryption
      12. 20.3.12 PCBC Decryption
      13. 20.3.13 CTR-DRBG (Counter-Deterministic Random Bit Generator)
      14. 20.3.14 CCM
    4. 20.4 AES Registers
  23. 21Analog to Digital Converter (ADC)
    1. 21.1 Overview
    2. 21.2 Block Diagram
    3. 21.3 Functional Description
      1. 21.3.1  ADC Core
      2. 21.3.2  Voltage Reference Options
      3. 21.3.3  Resolution Modes
      4. 21.3.4  ADC Clocking
      5. 21.3.5  Power Down Behavior
      6. 21.3.6  Sampling Trigger Sources and Sampling Modes
        1. 21.3.6.1 AUTO Sampling Mode
        2. 21.3.6.2 MANUAL Sampling Mode
      7. 21.3.7  Sampling Period
      8. 21.3.8  Conversion Modes
      9. 21.3.9  ADC Data Format
      10. 21.3.10 Status Register
      11. 21.3.11 ADC Events
        1. 21.3.11.1 CPU Interrupt Event Publisher (INT_EVENT0)
        2. 21.3.11.2 Generic Event Publisher (INT_EVENT1)
        3. 21.3.11.3 DMA Trigger Event Publisher (INT_EVENT2)
        4. 21.3.11.4 Generic Event Subscriber
    4. 21.4 Advanced Features
      1. 21.4.1 Window Comparator
      2. 21.4.2 DMA & FIFO Operation
        1. 21.4.2.1 DMA/CPU Operation in Non-FIFO Mode (FIFOEN=0)
        2. 21.4.2.2 DMA/CPU Operation in FIFO Mode (FIFOEN=1)
        3. 21.4.2.3 DMA/CPU Operation Summary Matrix
      3. 21.4.3 Ad-hoc Single Conversion
    5. 21.5 ADC Registers
  24. 22I/O Controller (IOC)
    1. 22.1  Introduction
    2. 22.2  Block Diagram
    3. 22.3  I/O Mapping and Configuration
      1. 22.3.1 Basic I/O Mapping
      2. 22.3.2 Radio GPO
      3. 22.3.3 Pin Mapping
      4. 22.3.4 DTB Muxing
    4. 22.4  Edge Detection
    5. 22.5  GPIO
    6. 22.6  I/O Pins
    7. 22.7  Unused Pins
    8. 22.8  Debug Configuration
    9. 22.9  IOC Registers
    10. 22.10 GPIO Registers
  25. 23Universal Asynchronous Receiver/Transmitter (UART-LIN)
    1. 23.1 Introduction
    2. 23.2 Block Diagram
    3. 23.3 UART Functional Description
      1. 23.3.1 Transmit and Receive Logic
      2. 23.3.2 Baud Rate Generation
      3. 23.3.3 FIFO Operation
        1. 23.3.3.1 FIFO Remapping
      4. 23.3.4 Data Transmission
      5. 23.3.5 Flow Control
      6. 23.3.6 IrDA Encoding and Decoding
      7. 23.3.7 Interrupts
      8. 23.3.8 Loopback Operation
    4. 23.4 UART-LIN Specification
      1. 23.4.1 Break transmission in UART mode
      2. 23.4.2 Break reception in UART mode
      3. 23.4.3 Break/Synch transmission in LIN mode
      4. 23.4.4 Break/Synch reception in LIN mode
      5. 23.4.5 Dormant mode operation
      6. 23.4.6 Wakeup signal generation
      7. 23.4.7 Wakeup signal detection when device is in active/idle modes
      8. 23.4.8 Wakeup signal detection when device is in standby mode
    5. 23.5 Interface to µDMA
    6. 23.6 Initialization and Configuration
    7. 23.7 UART Registers
  26. 24Serial Peripheral Interface (SPI)
    1. 24.1 Overview
      1. 24.1.1 Features
      2. 24.1.2 Block Diagram
    2. 24.2 Signal Description
    3. 24.3 Functional Description
      1. 24.3.1  Clock Control
      2. 24.3.2  FIFO Operation
        1. 24.3.2.1 Transmit FIFO
        2. 24.3.2.2 Repeated Transmit Operation
        3. 24.3.2.3 Receive FIFO
        4. 24.3.2.4 FIFO Flush
      3. 24.3.3  Interrupts
      4. 24.3.4  Data Format
      5. 24.3.5  Delayed Data Sampling
      6. 24.3.6  Chip Select Control
      7. 24.3.7  Command Data Control
      8. 24.3.8  Protocol Descriptions
        1. 24.3.8.1 Motorola SPI Frame Format
        2. 24.3.8.2 Texas Instruments Synchronous Serial Frame Format
        3. 24.3.8.3 MICROWIRE Frame Format
      9. 24.3.9  CRC Configuration
      10. 24.3.10 Auto CRC Functionality
      11. 24.3.11 Auto Header Functionality
      12. 24.3.12 SPI Status
      13. 24.3.13 Debug Halt
    4. 24.4 µDMA Operation
    5. 24.5 Initialization and Configuration
    6. 24.6 SPI Registers
  27. 25Inter-Integrated Circuit (I2C)
    1. 25.1 Introduction
    2. 25.2 Block Diagram
    3. 25.3 Functional Description
      1. 25.3.1 Functional Overview
        1. 25.3.1.1 Start and Stop Conditions
        2. 25.3.1.2 Data Format with 7-Bit Address
        3. 25.3.1.3 Data Validity
        4. 25.3.1.4 Acknowledge
        5. 25.3.1.5 Arbitration
      2. 25.3.2 Available Speed Modes
      3. 25.3.3 Interrupts
        1. 25.3.3.1 I2C Controller Interrupts
        2. 25.3.3.2 I2C Target Interrupts
      4. 25.3.4 Loopback Operation
      5. 25.3.5 Command Sequence Flowcharts
        1. 25.3.5.1 I2C Controller Command Sequences
        2. 25.3.5.2 I2C Target Command Sequences
    4. 25.4 Initialization and Configuration
    5. 25.5 I2C Registers
  28. 26Inter-IC Sound (I2S)
    1. 26.1  Introduction
    2. 26.2  Block Diagram
    3. 26.3  Clock Architecture
    4. 26.4  Signal Descriptions
    5. 26.5  Functional Description
      1. 26.5.1 Pin Configuration
      2. 26.5.2 Serial Format Configuration
      3. 26.5.3 I2S Format Schematic
        1. 26.5.3.1 Register Configuration
      4. 26.5.4 Left-Justified (LJF)
        1. 26.5.4.1 Register Configuration
      5. 26.5.5 Right-Justified (RJF)
        1. 26.5.5.1 Register Configuration
      6. 26.5.6 DSP
        1. 26.5.6.1 Register Configuration
      7. 26.5.7 Clock Configuration
    6. 26.6  Memory Interface
      1. 26.6.1 Sample Word Length
      2. 26.6.2 Padding Mechanism
      3. 26.6.3 Channel Mapping
      4. 26.6.4 Sample Storage in Memory
      5. 26.6.5 DMA Operation
        1. 26.6.5.1 Start-Up
        2. 26.6.5.2 Operation
        3. 26.6.5.3 Shutdown
    7. 26.7  Samplestamp Generator
      1. 26.7.1 Samplestamp Counters
      2. 26.7.2 Start-Up Triggers
      3. 26.7.3 Samplestamp Capture
      4. 26.7.4 Achieving Constant Audio Latency
    8. 26.8  Error Detection
    9. 26.9  Usage
      1. 26.9.1 Start-Up Sequence
      2. 26.9.2 Shutdown Sequence
    10. 26.10 I2S Configuration Guideline
    11. 26.11 I2S Registers
  29. 27CAN-FD
    1. 27.1 Introduction
    2. 27.2 Functions
    3. 27.3 MCAN Subsystem
    4. 27.4 MCAN Functional Description
      1. 27.4.1 Operating Modes
        1. 27.4.1.1 Software Initialization
        2. 27.4.1.2 Normal Operation
        3. 27.4.1.3 CAN FD Operation
        4. 27.4.1.4 Transmitter Delay Compensation
          1. 27.4.1.4.1 Description
          2. 27.4.1.4.2 Transmitter Delay Compensation Measurement
        5. 27.4.1.5 Restricted Operation Mode
        6. 27.4.1.6 Bus Monitoring Mode
        7. 27.4.1.7 Disabled Automatic Retransmission
          1. 27.4.1.7.1 Frame Transmission in DAR Mode
        8. 27.4.1.8 Power Down (Sleep Mode)
          1. 27.4.1.8.1 MCAN Clock Stop and Wake Operations
          2. 27.4.1.8.2 MCAN Debug Suspend Operation
        9. 27.4.1.9 Test Modes
          1. 27.4.1.9.1 External Loop Back Mode
          2. 27.4.1.9.2 Internal Loop Back Mode
      2. 27.4.2 Timestamp Generation
        1. 27.4.2.1 External Timestamp Counter
        2. 27.4.2.2 Block Diagram
      3. 27.4.3 Timeout Counter
      4. 27.4.4 Rx Handling
        1. 27.4.4.1 Acceptance Filtering
          1. 27.4.4.1.1 Range Filter
          2. 27.4.4.1.2 Filter for specific IDs
          3. 27.4.4.1.3 Classic Bit Mask Filter
          4. 27.4.4.1.4 Standard Message ID Filtering
          5. 27.4.4.1.5 Extended Message ID Filtering
        2. 27.4.4.2 Rx FIFOs
          1. 27.4.4.2.1 Rx FIFO Blocking Mode
          2. 27.4.4.2.2 Rx FIFO Overwrite Mode
        3. 27.4.4.3 Dedicated Rx Buffers
          1. 27.4.4.3.1 Rx Buffer Handling
        4. 27.4.4.4 Debug on CAN Support
          1. 27.4.4.4.1 Filtering for Debug Messages
          2. 27.4.4.4.2 Debug Message Handling
      5. 27.4.5 Tx Handling
        1. 27.4.5.1 Transmit Pause
        2. 27.4.5.2 Dedicated Tx Buffers
        3. 27.4.5.3 Tx FIFO
        4. 27.4.5.4 Tx Queue
        5. 27.4.5.5 Mixed Dedicated Tx Buffers / Tx FIFO
        6. 27.4.5.6 Mixed Dedicated Tx Buffers / Tx Queue
        7. 27.4.5.7 Transmit Cancellation
        8. 27.4.5.8 Tx Event Handling
      6. 27.4.6 FIFO Acknowledge Handling
      7. 27.4.7 MCAN Message RAM
        1. 27.4.7.1 Message RAM Configuration
        2. 27.4.7.2 Rx Buffer and FIFO Element
        3. 27.4.7.3 Tx Buffer Element
        4. 27.4.7.4 Tx Event FIFO Element
        5. 27.4.7.5 Standard Message ID Filter Element
        6. 27.4.7.6 Extended Message ID Filter Element
      8. 27.4.8 Interrupt Requests
    5. 27.5 CC27xx MCAN Wrapper
    6. 27.6 MCAN Clock Enable
    7. 27.7 Additional Notes
    8. 27.8 CANFD Registers
  30. 28Radio
    1. 28.1  Introduction
    2. 28.2  Block Diagram
    3. 28.3  Overview
      1. 28.3.1 Radio Sub-Domains
      2. 28.3.2 Radio RAMs
      3. 28.3.3 Doorbell (DBELL)
        1. 28.3.3.1 Interrupts
        2. 28.3.3.2 GPIO Control
        3. 28.3.3.3 SYSTIM Interface
    4. 28.4  Radio Usage Model
      1. 28.4.1 CRC and Whitening
    5. 28.5  LRFDDBELL Registers
    6. 28.6  LRFDMDM32 Registers
    7. 28.7  LRFDPBE Registers
    8. 28.8  LRFDPBE32 Registers
    9. 28.9  LRFDRFE Registers
    10. 28.10 LRFDRFE32 Registers
    11. 28.11 LRFDRXF Registers
    12. 28.12 LRFDS2R Registers
    13. 28.13 LRFDTRC Registers
    14. 28.14 LRFDTXF Registers
  31. 29Revision History

6.6.8 CLKCTL Registers

Table 6-105 lists the memory-mapped registers for the CLKCTL registers. All register offset addresses not listed in Table 6-105 should be considered as reserved locations and the register contents should not be modified.

Table 6-105 CLKCTL Registers
OffsetAcronymRegister NameSection
0hDESCDescription Register.Section 6.6.8.1
4hDESCEX0Extended Description Register 0.Section 6.6.8.2
8hDESCEX1Extended Description Register 1.Section 6.6.8.3
ChCLKCFG0Clock Configuration Register 0.Section 6.6.8.4
10hCLKCFG1Clock Configuration Register 1.Section 6.6.8.5
14hCLKENSET0Clock Enable Set Register 0.Section 6.6.8.6
18hCLKENSET1Clock Enable Set Register 1.Section 6.6.8.7
20hCLKENCLR0Clock Enable Clear Register 0.Section 6.6.8.8
24hCLKENCLR1Clock Enable Clear Register 1.Section 6.6.8.9
3ChSTBYPTRInternal. Only to be used through TI provided API.Section 6.6.8.10
48hIDLECFGIDLE Configuration Register.Section 6.6.8.11

Complex bit access types are encoded to fit into small table cells. Table 6-106 shows the codes that are used for access types in this section.

Table 6-106 CLKCTL Access Type Codes
Access TypeCodeDescription
Read Type
RRRead
Write Type
WWWrite
Reset or Default Value
-nValue after reset or the default value

6.6.8.1 DESC Register (Offset = 0h) [Reset = 00000000h]

DESC is shown in Table 6-107.

Return to the Summary Table.

Description Register.
This register provides IP module ID, revision information, instance index and standard MMR registers offset.

Table 6-107 DESC Register Field Descriptions
BitFieldTypeResetDescription
31-16MODIDR254FhModule identifier used to uniquely identify this IP.
15-12STDIPOFFR0hStandard IP MMR block offset. Standard IP MMRs are the set of aggregated IRQ registers till DTB.
0: Standard IP MMRs do not exist
0x1-0xF: Standard IP MMRs begin at offset of (64*STDIPOFF from the base IP address)
11-8INSTIDXR0hIP Instance ID number. If multiple instances of IP exist in the device, this field can identify the instance number (0-15).
7-4MAJREVR0hMajor revision of IP 0-15
3-0MINREVR0hMinor revision of IP 0-15.

6.6.8.2 DESCEX0 Register (Offset = 4h) [Reset = 00000000h]

DESCEX0 is shown in Table 6-108.

Return to the Summary Table.

Extended Description Register 0.
This register shows SVT IP availability, HW features and memory size configuration.

Table 6-108 DESCEX0 Register Field Descriptions
BitFieldTypeResetDescription
31RESERVEDR0hReserved
30LGPT3R1hIP status on device
  • 0h = IP is unavailable
  • 1h = IP is available
29LGPT2R1hIP status on device
  • 0h = IP is unavailable
  • 1h = IP is available
28LGPT1R1hIP status on device
  • 0h = IP is unavailable
  • 1h = IP is available
27LGPT0R1hIP status on device
  • 0h = IP is unavailable
  • 1h = IP is available
26-21RESERVEDR0hReserved
20I2SR1hIP status on device
  • 0h = IP is unavailable
  • 1h = IP is available
19-18RESERVEDR0hReserved
17DMAR1hIP status on device
  • 0h = IP is unavailable
  • 1h = IP is available
16LAESR1hIP status on device
  • 0h = IP is unavailable
  • 1h = IP is available
15RESERVEDR0hReserved
14ADC0R1hIP status on device
  • 0h = IP is unavailable
  • 1h = IP is available
13-12RESERVEDR0hReserved
11SPI1R1hIP status on device
  • 0h = IP is unavailable
  • 1h = IP is available
10SPI0R1hIP status on device
  • 0h = IP is unavailable
  • 1h = IP is available
9-7RESERVEDR0hReserved
6I2C0R1hIP status on device
  • 0h = IP is unavailable
  • 1h = IP is available
5-4RESERVEDR0hReserved
3UART1R1hIP status on device
  • 0h = IP is unavailable
  • 1h = IP is available
2UART0R1hIP status on device
  • 0h = IP is unavailable
  • 1h = IP is available
1LRFDR1hIP status on device
  • 0h = IP is unavailable
  • 1h = IP is available
0GPIOR1hIP status on device
  • 0h = IP is unavailable
  • 1h = IP is available

6.6.8.3 DESCEX1 Register (Offset = 8h) [Reset = 00000000h]

DESCEX1 is shown in Table 6-109.

Return to the Summary Table.

Extended Description Register 1.
This register shows SVT IP availability, HW features and memory size configuration.

Table 6-109 DESCEX1 Register Field Descriptions
BitFieldTypeResetDescription
31-30FLASHSZR3hSystem flash availability
  • 0h = Flash size set to level 0 (Min size)
  • 1h = Flash size set to level 1
  • 2h = Flash size set to level 2
  • 3h = Flash size set to level 3 (Max size)
29-28SRAMSZR3hSystem SRAM availability
  • 0h = SRAM size set to level 0 (Min size)
  • 1h = SRAM size set to level 1
  • 2h = SRAM size set to level 2
  • 3h = SRAM size set to level 3 (Max size)
27-21RESERVEDR0hReserved
20-19HSMOPTR3hHSM IP feature availability.
  • 3h = All features available
18-17CANOPTR3hCAN IP feature availability
  • 3h = All features available
16RESERVEDR0hReserved
15-8ROPTRFFhSystem radio feature availability
  • FFh = All features available
7RESERVEDR0hReserved
6MCANR1hIP status on device
  • 0h = IP is unavailable
  • 1h = IP is available
5APUR1hIP status on device
  • 0h = IP is unavailable
  • 1h = IP is available
4HSMR1hIP status on device
  • 0h = IP is unavailable
  • 1h = IP is available
3-0RESERVEDR0hReserved

6.6.8.4 CLKCFG0 Register (Offset = Ch) [Reset = 00000000h]

CLKCFG0 is shown in Table 6-110.

Return to the Summary Table.

Clock Configuration Register 0.
This register shows the IP clock configuration for the system.
The configuration is updated through CLKENSET0 and CLKENCLR0.

Table 6-110 CLKCFG0 Register Field Descriptions
BitFieldTypeResetDescription
31RESERVEDR0hReserved
30LGPT3R0hIP clock configuration
  • 0h = Clock is disabled
  • 1h = Clock is enabled
29LGPT2R0hIP clock configuration
  • 0h = Clock is disabled
  • 1h = Clock is enabled
28LGPT1R0hIP clock configuration
  • 0h = Clock is disabled
  • 1h = Clock is enabled
27LGPT0R0hIP clock configuration
  • 0h = Clock is disabled
  • 1h = Clock is enabled
26-21RESERVEDR0hReserved
20I2SR0hIP clock configuration
  • 0h = Clock is disabled
  • 1h = Clock is enabled
19-18RESERVEDR0hReserved
17DMAR0hIP clock configuration
  • 0h = Clock is disabled
  • 1h = Clock is enabled
16LAESR0hIP clock configuration
  • 0h = Clock is disabled
  • 1h = Clock is enabled
15RESERVEDR0hReserved
14ADC0R0hIP clock configuration
  • 0h = Clock is disabled
  • 1h = Clock is enabled
13-12RESERVEDR0hReserved
11SPI1R0hIP clock configuration
  • 0h = Clock is disabled
  • 1h = Clock is enabled
10SPI0R0hIP clock configuration
  • 0h = Clock is disabled
  • 1h = Clock is enabled
9-7RESERVEDR0hReserved
6I2C0R0hIP clock configuration
  • 0h = Clock is disabled
  • 1h = Clock is enabled
5-4RESERVEDR0hReserved
3UART1R0hIP clock configuration
  • 0h = Clock is disabled
  • 1h = Clock is enabled
2UART0R0hIP clock configuration
  • 0h = Clock is disabled
  • 1h = Clock is enabled
1LRFDR0hIP clock configuration
  • 0h = Clock is disabled
  • 1h = Clock is enabled
0GPIOR1hIP clock configuration
  • 0h = Clock is disabled
  • 1h = Clock is enabled

6.6.8.5 CLKCFG1 Register (Offset = 10h) [Reset = 00000000h]

CLKCFG1 is shown in Table 6-111.

Return to the Summary Table.

Clock Configuration Register 1.
This register shows the IP clock configuration for the system.
The configuration is updated through CLKENSET1 and CLKENCLR1.

Table 6-111 CLKCFG1 Register Field Descriptions
BitFieldTypeResetDescription
31-7RESERVEDR0hReserved
6MCANR0hIP clock configuration
  • 0h = Clock is disabled
  • 1h = Clock is enabled
5APUR0hIP clock configuration
  • 0h = Clock is disabled
  • 1h = Clock is enabled
4HSMR0hIP clock configuration
  • 0h = Clock is disabled
  • 1h = Clock is enabled
3-0RESERVEDR0hReserved

6.6.8.6 CLKENSET0 Register (Offset = 14h) [Reset = 00000000h]

CLKENSET0 is shown in Table 6-112.

Return to the Summary Table.

Clock Enable Set Register 0.
This register enables IP clocks in the system.
Used to set the corresponding fields in CLKCFG0 to 1.

Table 6-112 CLKENSET0 Register Field Descriptions
BitFieldTypeResetDescription
31RESERVEDR0hReserved
30LGPT3W0hConfigure IP clock enable
  • 0h = IP clock enable is unchanged
  • 1h = Set IP clock enable
29LGPT2W0hConfigure IP clock enable
  • 0h = IP clock enable is unchanged
  • 1h = Set IP clock enable
28LGPT1W0hConfigure IP clock enable
  • 0h = IP clock enable is unchanged
  • 1h = Set IP clock enable
27LGPT0W0hConfigure IP clock enable
  • 0h = IP clock enable is unchanged
  • 1h = Set IP clock enable
26-21RESERVEDR0hReserved
20I2SW0hConfigure IP clock enable
  • 0h = IP clock enable is unchanged
  • 1h = Set IP clock enable
19-18RESERVEDR0hReserved
17DMAW0hConfigure IP clock enable
  • 0h = IP clock enable is unchanged
  • 1h = Set IP clock enable
16LAESW0hConfigure IP clock enable
  • 0h = IP clock enable is unchanged
  • 1h = Set IP clock enable
15RESERVEDR0hReserved
14ADC0W0hConfigure IP clock enable
  • 0h = IP clock enable is unchanged
  • 1h = Set IP clock enable
13-12RESERVEDR0hReserved
11SPI1W0hConfigure IP clock enable
  • 0h = IP clock enable is unchanged
  • 1h = Set IP clock enable
10SPI0W0hConfigure IP clock enable
  • 0h = IP clock enable is unchanged
  • 1h = Set IP clock enable
9-7RESERVEDR0hReserved
6I2C0W0hConfigure IP clock enable
  • 0h = IP clock enable is unchanged
  • 1h = Set IP clock enable
5-4RESERVEDR0hReserved
3UART1W0hConfigure IP clock enable
  • 0h = IP clock enable is unchanged
  • 1h = Set IP clock enable
2UART0W0hConfigure IP clock enable
  • 0h = IP clock enable is unchanged
  • 1h = Set IP clock enable
1LRFDW0hConfigure IP clock enable
  • 0h = IP clock enable is unchanged
  • 1h = Set IP clock enable
0GPIOW0hConfigure IP clock enable
  • 0h = IP clock enable is unchanged
  • 1h = Set IP clock enable

6.6.8.7 CLKENSET1 Register (Offset = 18h) [Reset = 00000000h]

CLKENSET1 is shown in Table 6-113.

Return to the Summary Table.

Clock Enable Set Register 1.
This register enables IP clocks in the system.
Used to set the corresponding fields in CLKCFG1 to 1.

Table 6-113 CLKENSET1 Register Field Descriptions
BitFieldTypeResetDescription
31-7RESERVEDR0hReserved
6MCANW0hConfigure IP clock enable
  • 0h = IP clock enable is unchanged
  • 1h = Set IP clock enable
5APUW0hConfigure IP clock enable
  • 0h = IP clock enable is unchanged
  • 1h = Set IP clock enable
4HSMW0hConfigure IP clock enable
  • 0h = IP clock enable is unchanged
  • 1h = Set IP clock enable
3-0RESERVEDR0hReserved

6.6.8.8 CLKENCLR0 Register (Offset = 20h) [Reset = 00000000h]

CLKENCLR0 is shown in Table 6-114.

Return to the Summary Table.

Clock Enable Clear Register 0.
This register disables IP clocks in the system.
Used to clear the corresponding fields in CLKCFG0 to 0.

Table 6-114 CLKENCLR0 Register Field Descriptions
BitFieldTypeResetDescription
31RESERVEDR0hReserved
30LGPT3W0hConfigure IP clock enable
  • 0h = IP clock enable is unchanged
  • 1h = Clear IP clock enable
29LGPT2W0hConfigure IP clock enable
  • 0h = IP clock enable is unchanged
  • 1h = Clear IP clock enable
28LGPT1W0hConfigure IP clock enable
  • 0h = IP clock enable is unchanged
  • 1h = Clear IP clock enable
27LGPT0W0hConfigure IP clock enable
  • 0h = IP clock enable is unchanged
  • 1h = Clear IP clock enable
26-21RESERVEDR0hReserved
20I2SW0hConfigure IP clock enable
  • 0h = IP clock enable is unchanged
  • 1h = Clear IP clock enable
19-18RESERVEDR0hReserved
17DMAW0hConfigure IP clock enable
  • 0h = IP clock enable is unchanged
  • 1h = Clear IP clock enable
16LAESW0hConfigure IP clock enable
  • 0h = IP clock enable is unchanged
  • 1h = Clear IP clock enable
15RESERVEDR0hReserved
14ADC0W0hConfigure IP clock enable
  • 0h = IP clock enable is unchanged
  • 1h = Clear IP clock enable
13-12RESERVEDR0hReserved
11SPI1W0hConfigure IP clock enable
  • 0h = IP clock enable is unchanged
  • 1h = Clear IP clock enable
10SPI0W0hConfigure IP clock enable
  • 0h = IP clock enable is unchanged
  • 1h = Clear IP clock enable
9-7RESERVEDR0hReserved
6I2C0W0hConfigure IP clock enable
  • 0h = IP clock enable is unchanged
  • 1h = Clear IP clock enable
5-4RESERVEDR0hReserved
3UART1W0hConfigure IP clock enable
  • 0h = IP clock enable is unchanged
  • 1h = Clear IP clock enable
2UART0W0hConfigure IP clock enable
  • 0h = IP clock enable is unchanged
  • 1h = Clear IP clock enable
1LRFDW0hConfigure IP clock enable
  • 0h = IP clock enable is unchanged
  • 1h = Clear IP clock enable
0GPIOW0hConfigure IP clock enable
  • 0h = IP clock enable is unchanged
  • 1h = Clear IP clock enable

6.6.8.9 CLKENCLR1 Register (Offset = 24h) [Reset = 00000000h]

CLKENCLR1 is shown in Table 6-115.

Return to the Summary Table.

Clock Enable Clear Register 1.
This register disables IP clocks in the system.
Used to clear the corresponding fields in CLKCFG1 to 0.

Table 6-115 CLKENCLR1 Register Field Descriptions
BitFieldTypeResetDescription
31-7RESERVEDR0hReserved
6MCANW0hConfigure IP clock enable
  • 0h = IP clock enable is unchanged
  • 1h = Clear IP clock enable
5APUW0hConfigure IP clock enable
  • 0h = IP clock enable is unchanged
  • 1h = Clear IP clock enable
4HSMW0hConfigure IP clock enable
  • 0h = IP clock enable is unchanged
  • 1h = Clear IP clock enable
3-0RESERVEDR0hReserved

6.6.8.10 STBYPTR Register (Offset = 3Ch) [Reset = 00000000h]

STBYPTR is shown in Table 6-116.

Return to the Summary Table.

Internal. Only to be used through TI provided API.

Table 6-116 STBYPTR Register Field Descriptions
BitFieldTypeResetDescription
31-0VALR/W0hInternal. Only to be used through TI provided API.

6.6.8.11 IDLECFG Register (Offset = 48h) [Reset = 00000000h]

IDLECFG is shown in Table 6-117.

Return to the Summary Table.

IDLE Configuration Register.
This register contains flash LDO configuration for IDLE mode.

Table 6-117 IDLECFG Register Field Descriptions
BitFieldTypeResetDescription
31-1RESERVEDR0hReserved
0MODER/W0hFlash LDO configuration in SLEEP/IDLE mode.
  • 0h = Flash LDO is on in SLEEP/IDLE mode.;Gives fast wake up time from SLEEP/IDLE mode, but increased power consumption.
  • 1h = Flash LDO is off in SLEEP/IDLE mode. ;Decreases power consumption in SLEEP/IDLE mode, but gives longer wake up time.;Note: NVM clock is turned off independent of DMA status. Therefore SW must ensure that DMA never access NVM in this mode.