SWCU194 March   2023 CC1314R10 , CC1354P10 , CC1354R10 , CC2674P10 , CC2674R10

 

  1.   Read This First
    1.     About This Manual
    2.     Devices
    3.     Register, Field, and Bit Calls
    4.     Related Documentation
    5.     Trademarks
  2. 1 Architectural Overview
    1. 1.1 Target Applications
    2. 1.2 Overview
    3. 1.3 Functional Overview
      1. 1.3.1  ArmCortex-M33 with FPU
        1. 1.3.1.1 Processor Core
        2. 1.3.1.2 System Timer (SysTick)
        3. 1.3.1.3 Nested Vector Interrupt Controller (NVIC)
        4. 1.3.1.4 System Control Block (SCB)
      2. 1.3.2  On-Chip Memory
        1. 1.3.2.1 SRAM
        2. 1.3.2.2 Flash Memory
        3. 1.3.2.3 ROM
      3. 1.3.3  Radio
      4. 1.3.4  Security Core
      5. 1.3.5  Runtime Security
      6. 1.3.6  General-Purpose Timers
        1. 1.3.6.1 Watchdog Timer
        2. 1.3.6.2 Always-On Domain
      7. 1.3.7  Direct Memory Access
      8. 1.3.8  System Control and Clock
      9. 1.3.9  Serial Communication Peripherals
        1. 1.3.9.1 UART
        2. 1.3.9.2 I2C
        3. 1.3.9.3 I2S
        4. 1.3.9.4 SPI
      10. 1.3.10 Programmable I/Os
      11. 1.3.11 Sensor Controller
      12. 1.3.12 Random Number Generator
      13. 1.3.13 cJTAG and JTAG
      14. 1.3.14 Power Supply System
        1. 1.3.14.1 Supply System
          1. 1.3.14.1.1 VDDS
          2. 1.3.14.1.2 VDDR
          3. 1.3.14.1.3 Digital Core Supply
          4. 1.3.14.1.4 Other Internal Supplies
        2. 1.3.14.2 DC/DC Converter
  3. 2  Arm Cortex-M33 Processor with FPU
    1. 2.1 Arm Cortex-M33 Processor Introduction
    2. 2.2 Block Diagram
    3. 2.3 Overview
      1. 2.3.1 Integrated Configurable Debug
      2. 2.3.2 Trace Port Interface Unit
      3. 2.3.3 Arm Cortex-M33 System Peripheral Details
        1. 2.3.3.1 Floating Point Unit (FPU)
        2. 2.3.3.2 Memory Protection Unit (MPU)
        3. 2.3.3.3 System Timer (SysTick)
        4. 2.3.3.4 Nested Vectored Interrupt Controller (NVIC)
        5. 2.3.3.5 System Control Block (SCB)
        6. 2.3.3.6 System Control Space (SCS)
        7. 2.3.3.7 Security Attribution Unit (SAU)
    4. 2.4 Programming Model
      1. 2.4.1 Modes of Operation and Execution
        1. 2.4.1.1 Security States
        2. 2.4.1.2 Operating Modes
        3. 2.4.1.3 Operating States
        4. 2.4.1.4 Privileged Access and Unprivileged User Access
      2. 2.4.2 Instruction Set Summary
      3. 2.4.3 Memory Model
        1. 2.4.3.1 Private Peripheral Bus
        2. 2.4.3.2 Unaligned Accesses
      4. 2.4.4 Exclusive Monitor
      5. 2.4.5 Processor Core Registers Summary
      6. 2.4.6 Exceptions
        1. 2.4.6.1 Exception Handling and Prioritization
      7. 2.4.7 Runtime Security
        1. 2.4.7.1 IDAU Watermark Registers
        2. 2.4.7.2 Secure Memory Range for Registers
        3. 2.4.7.3 Bus Topology
        4. 2.4.7.4 Intended Use
    5. 2.5 Arm® Cortex®-M33 Registers
      1. 2.5.1  CPU_ITM Registers
      2. 2.5.2  CPU_DWT Registers
      3. 2.5.3  CPU_SYSTICK Registers
      4. 2.5.4  CPU_NVIC Registers
      5. 2.5.5  CPU_SCS Registers
      6. 2.5.6  CPU_MPU Registers
      7. 2.5.7  CPU_SAU Registers
      8. 2.5.8  CPU_DCB Registers
      9. 2.5.9  CPU_SIG Registers
      10. 2.5.10 CPU_FPU Registers
      11. 2.5.11 CPU_TPIU Registers
  4. 3 Memory Map
    1. 3.1 Introduction
    2. 3.2 Memory Map (Secure and Non-secure)
      1. 3.2.1 Bus Security
    3. 3.3 Memory Map
  5. 4  Arm Cortex-M33 Peripherals
    1. 4.1 Arm Cortex-M33 Peripherals Introduction
  6. 5 Interrupts and Events
    1. 5.1 Exception Model
      1. 5.1.1 Exception States
      2. 5.1.2 Exception Types
      3. 5.1.3 Exception Handlers
      4. 5.1.4 Vector Table
      5. 5.1.5 Exception Priorities
      6. 5.1.6 Interrupt Priority Grouping
      7. 5.1.7 Exception Entry and Return
        1. 5.1.7.1 Exception Entry
        2. 5.1.7.2 Exception Return
    2. 5.2 Fault Handling
      1. 5.2.1 Fault Types
      2. 5.2.2 Fault Escalation and Hard Faults
      3. 5.2.3 Fault Status Registers and Fault Address Registers
      4. 5.2.4 Lockup
    3. 5.3 Security State Switches
    4. 5.4 Event Fabric
      1. 5.4.1 Introduction
      2. 5.4.2 Event Fabric Overview
        1. 5.4.2.1 Registers
    5. 5.5 AON Event Fabric
      1. 5.5.1 Common Input Event List
      2. 5.5.2 Event Subscribers
        1. 5.5.2.1 AON Power Management Controller (AON_PMCTL)
        2. 5.5.2.2 Real-Time Clock
        3. 5.5.2.3 MCU Event Fabric
    6. 5.6 MCU Event Fabric
      1. 5.6.1 Common Input Event List
      2. 5.6.2 Event Subscribers
        1. 5.6.2.1 System CPU
        2. 5.6.2.2 NMI
        3. 5.6.2.3 Freeze
    7. 5.7 AON Events
    8. 5.8 Interrupts and Events Registers
      1. 5.8.1 AON_EVENT Registers
      2. 5.8.2 EVENT Registers
  7. 6 JTAG Interface
    1. 6.1 Overview
    2. 6.2 cJTAG
    3. 6.3 ICEPick
      1. 6.3.1 Secondary TAPs
        1. 6.3.1.1 Slave DAP (CPU DAP)
      2. 6.3.2 ICEPick Registers
        1. 6.3.2.1 IR Instructions
        2. 6.3.2.2 Data Shift Register
        3. 6.3.2.3 Instruction Register
        4. 6.3.2.4 Bypass Register
        5. 6.3.2.5 Device Identification Register
        6. 6.3.2.6 User Code Register
        7. 6.3.2.7 ICEPick Identification Register
        8. 6.3.2.8 Connect Register
      3. 6.3.3 Router Scan Chain
      4. 6.3.4 TAP Routing Registers
        1. 6.3.4.1 ICEPick Control Block
          1. 6.3.4.1.1 All0s Register
          2. 6.3.4.1.2 ICEPick Control Register
          3. 6.3.4.1.3 Linking Mode Register
        2. 6.3.4.2 Test TAP Linking Block
          1. 6.3.4.2.1 Secondary Test TAP Register
        3. 6.3.4.3 Debug TAP Linking Block
          1. 6.3.4.3.1 Secondary Debug TAP Register
    4. 6.4 ICEMelter
    5. 6.5 Serial Wire Viewer (SWV)
    6. 6.6 Halt In Boot (HIB)
    7. 6.7 Debug and Shutdown
    8. 6.8 Boundary Scan
  8. 7 Power, Reset, and Clock Management (PRCM)
    1. 7.1 Introduction
    2. 7.2 System CPU Mode
    3. 7.3 Supply System
      1. 7.3.1 Internal DC/DC Converter and Global LDO
      2. 7.3.2 External Regulator Mode
    4. 7.4 Digital Power Partitioning
      1. 7.4.1 MCU_VD
        1. 7.4.1.1 MCU_VD Power Domains
      2. 7.4.2 AON_VD
        1. 7.4.2.1 AON_VD Power Domains
    5. 7.5 Clock Management
      1. 7.5.1 System Clocks
        1. 7.5.1.1 Controlling the Oscillators
      2. 7.5.2 Clocks in MCU_VD
        1. 7.5.2.1 Clock Gating
        2. 7.5.2.2 Scaler to GPTs
        3. 7.5.2.3 Scaler to WDT
      3. 7.5.3 Clocks in AON_VD
    6. 7.6 Power Modes
      1. 7.6.1 Start-Up State
      2. 7.6.2 Active Mode
      3. 7.6.3 Idle Mode
      4. 7.6.4 Standby Mode
      5. 7.6.5 Shutdown Mode
    7. 7.7 Reset
      1. 7.7.1 System Resets
        1. 7.7.1.1 Clock Loss Detection
        2. 7.7.1.2 Software-Initiated System Reset
        3. 7.7.1.3 Warm Reset Converted to System Reset
      2. 7.7.2 Reset of the MCU_VD Power Domains and Modules
      3. 7.7.3 Reset of AON_VD
      4. 7.7.4 Always On Watchdog Timer (AON_WDT)
    8. 7.8 PRCM Registers
      1. 7.8.1 PRCM Registers
      2. 7.8.2 AON_PMCTL Registers
      3. 7.8.3 DDI_0_OSC Registers
  9. 8 Versatile Instruction Memory System (VIMS)
    1. 8.1 Introduction
    2. 8.2 VIMS Configurations
      1. 8.2.1 VIMS Modes
        1. 8.2.1.1 GPRAM Mode
        2. 8.2.1.2 Off Mode
        3. 8.2.1.3 Cache Mode
      2. 8.2.2 VIMS FLASH Line Buffers
      3. 8.2.3 VIMS Arbitration
      4. 8.2.4 VIMS Cache TAG Prefetch
    3. 8.3 VIMS Software Remarks
      1. 8.3.1 FLASH Program or Update
      2. 8.3.2 VIMS Retention
        1. 8.3.2.1 Mode 1
        2. 8.3.2.2 Mode 2
        3. 8.3.2.3 Mode 3
    4. 8.4 FLASH
      1. 8.4.1 Flash Memory Protection
      2. 8.4.2 Flash Memory Programming
    5. 8.5 ROM Functions
    6. 8.6 VIMS Registers
      1. 8.6.1 FLASH Registers
      2. 8.6.2 VIMS Registers
      3. 8.6.3 NVMNW Registers
  10. 9 SRAM
    1. 9.1 Introduction
    2. 9.2 Main Features
    3. 9.3 Data Retention
    4. 9.4 Parity and SRAM Error Support
      1. 9.4.1 SRAM Extension Mode
    5. 9.5 SRAM Auto-Initialization
    6. 9.6 Parity Debug Behavior
    7. 9.7 SRAM Registers
      1. 9.7.1 SRAM_MMR Registers
      2. 9.7.2 SRAM Registers
  11. 10Bootloader
    1. 10.1 Bootloader Functionality
      1. 10.1.1 Bootloader Disabling
      2. 10.1.2 Bootloader Backdoor
    2. 10.2 Bootloader Interfaces
      1. 10.2.1 Packet Handling
        1. 10.2.1.1 Packet Acknowledge and Not-Acknowledge Bytes
      2. 10.2.2 Transport Layer
        1. 10.2.2.1 UART Transport
          1. 10.2.2.1.1 UART Baud Rate Automatic Detection
        2. 10.2.2.2 SPI Transport
      3. 10.2.3 Serial Bus Commands
        1. 10.2.3.1  COMMAND_PING
        2. 10.2.3.2  COMMAND_DOWNLOAD
        3. 10.2.3.3  COMMAND_GET_STATUS
        4. 10.2.3.4  COMMAND_SEND_DATA
        5. 10.2.3.5  COMMAND_RESET
        6. 10.2.3.6  COMMAND_SECTOR_ERASE
        7. 10.2.3.7  COMMAND_CRC32
        8. 10.2.3.8  COMMAND_GET_CHIP_ID
        9. 10.2.3.9  COMMAND_MEMORY_READ
        10. 10.2.3.10 COMMAND_MEMORY_WRITE
        11. 10.2.3.11 COMMAND_BANK_ERASE
        12. 10.2.3.12 COMMAND_SET_CCFG
        13. 10.2.3.13 COMMAND_DOWNLOAD_CRC
  12. 11Device Configuration
    1. 11.1 Customer Configuration (CCFG)
      1. 11.1.1 CCFG Recommendations for Final Production
    2. 11.2 CCFG Registers
    3. 11.3 Factory Configuration (FCFG)
    4. 11.4 FCFG1 Registers
  13. 12AES and Hash Cryptoprocessor
    1. 12.1 Introduction
    2. 12.2 Functional Description
      1. 12.2.1 Debug Capabilities
      2. 12.2.2 Exception Handling
      3. 12.2.3 Power Management and Sleep Modes
      4. 12.2.4 Interrupts
      5. 12.2.5 Module Memory Map
      6. 12.2.6 Master Control and Select Module
        1. 12.2.6.1 Algorithm Select Register
          1. 12.2.6.1.1 Algorithm Select
        2. 12.2.6.2 Master PROT Enable
          1. 12.2.6.2.1 Master PROT-Privileged Access-Enable
        3. 12.2.6.3 Software Reset
      7. 12.2.7 AES Engine
        1. 12.2.7.1 Second and Third Key Registers (Internal, but Clearable)
        2. 12.2.7.2 AES Initialization Vector (IV) Registers
        3. 12.2.7.3 AES I/O Buffer Control, Mode, and Length Registers
        4. 12.2.7.4 AES Data Input and Output Registers
        5. 12.2.7.5 TAG Registers
      8. 12.2.8 Key Area Registers
        1. 12.2.8.1 Key Store Write Area Register
        2. 12.2.8.2 Key Store Written Area Register
        3. 12.2.8.3 Key Store Size Register
        4. 12.2.8.4 Key Store Read Area Register
      9. 12.2.9 Hash Engine
        1. 12.2.9.1 Hash I/O Buffer Control and Status Register, Mode, and Length Registers
        2. 12.2.9.2 Hash Data Input and Digest Registers
    3. 12.3 DMA Controller
      1. 12.3.1 Internal Operation
      2. 12.3.2 Supported DMA Operations
    4. 12.4 AES and Hash Cryptoprocessor Performance
      1. 12.4.1 Introduction
      2. 12.4.2 Performance for DMA-Based Operations
    5. 12.5 Programming Guidelines
      1. 12.5.1 One-Time Initialization After a Reset
      2. 12.5.2 DMAC and Master Control
        1. 12.5.2.1 Regular Use
        2. 12.5.2.2 Interrupting DMA Transfers
        3. 12.5.2.3 Interrupts, Hardware, and Software Synchronization
      3. 12.5.3 Hashing
        1. 12.5.3.1 Data Format and Byte Order
        2. 12.5.3.2 Basic Hash with Data From DMA
          1. 12.5.3.2.1 New Hash Session with Digest Read Through Slave
          2. 12.5.3.2.2 New Hash Session with Digest to External Memory
          3. 12.5.3.2.3 Resumed Hash Session
        3. 12.5.3.3 HMAC
          1. 12.5.3.3.1 Secure HMAC
        4. 12.5.3.4 Alternative Basic Hash Where Data Originates from Slave Interface
          1. 12.5.3.4.1 New Hash Session
          2. 12.5.3.4.2 Resumed Hash Session
      4. 12.5.4 Encryption and Decryption
        1. 12.5.4.1 Data Format and Byte Order
        2. 12.5.4.2 Key Store
          1. 12.5.4.2.1 Load Keys from External Memory
        3. 12.5.4.3 Basic AES Modes
          1. 12.5.4.3.1 AES-ECB
          2. 12.5.4.3.2 AES-CBC
          3. 12.5.4.3.3 AES-CTR
          4. 12.5.4.3.4 Programming Sequence with DMA Data
        4. 12.5.4.4 CBC-MAC
          1. 12.5.4.4.1 Programming Sequence for Regular CBC-MAC
          2. 12.5.4.4.2 Programming Sequence for Regular CBC-MAC with Continuation
          3. 12.5.4.4.3 Programming Sequence for CMAC CBC-MAC
          4. 12.5.4.4.4 Programming Sequence for CMAC CBC-MAC with Continuation
        5. 12.5.4.5 AES-CCM
          1. 12.5.4.5.1 Continued CCM Processing
          2. 12.5.4.5.2 Programming Sequence for AES-CCM
          3. 12.5.4.5.3 Programming Sequence for Continued AES-CCM in the AAD Phase
          4. 12.5.4.5.4 Programming Sequence for Continued AES-CCM in the Payload Phase
        6. 12.5.4.6 AES-GCM
          1. 12.5.4.6.1 Continued AES-GCM Processing
          2. 12.5.4.6.2 Programming Sequence for AES-GCM
          3. 12.5.4.6.3 Programming Sequence for Continued AES-GCM in the AAD Phase
          4. 12.5.4.6.4 Programming Sequence for Continued AES-GCM in the Payload Phase
      5. 12.5.5 Exceptions Handling
        1. 12.5.5.1 Soft Reset
        2. 12.5.5.2 External Port Errors
        3. 12.5.5.3 Key Store Errors
    6. 12.6 Conventions and Compliances
      1. 12.6.1 Conventions Used in This Manual
        1. 12.6.1.1 Terminology
        2. 12.6.1.2 Formulas and Nomenclature
      2. 12.6.2 Compliance
    7. 12.7 CRYPTO Registers
  14. 13PKA Engine
    1. 13.1 Introduction
    2. 13.2 Functional Description
      1. 13.2.1 Module Architecture
      2. 13.2.2 PKA RAM
      3. 13.2.3 PKCP Operations
      4. 13.2.4 Sequencer Operations
        1. 13.2.4.1 Modular Exponentiation Operations
        2. 13.2.4.2 Modular Inversion Operation
        3. 13.2.4.3 ECC Operations
      5. 13.2.5 Operation Sequence
    3. 13.3 PKA Engine Performance
      1. 13.3.1 Basic Operations Performance
      2. 13.3.2 ExpMod Performance
      3. 13.3.3 Modular Inversion Performance
      4. 13.3.4 ECC Operation Performance
    4. 13.4 PKA Registers
  15. 14True Random Number Generator (TRNG)
    1. 14.1 Introduction
    2. 14.2 Block Diagram
    3. 14.3 TRNG Software Reset
    4. 14.4 Interrupt Requests
    5. 14.5 TRNG Operation Description
      1. 14.5.1 TRNG Shutdown
      2. 14.5.2 TRNG Alarms
      3. 14.5.3 TRNG Entropy
    6. 14.6 TRNG Low-Level Programming Guide
      1. 14.6.1 Initialization
        1. 14.6.1.1 Interfacing Modules
        2. 14.6.1.2 TRNG Main Sequence
        3. 14.6.1.3 TRNG Operating Modes
          1. 14.6.1.3.1 Polling Mode
          2. 14.6.1.3.2 Interrupt Mode
    7. 14.7 TRNG Registers
  16. 15I/O Controller (IOC)
    1. 15.1  Introduction
    2. 15.2  IOC Overview
    3. 15.3  I/O Mapping and Configuration
      1. 15.3.1 Basic I/O Mapping
      2. 15.3.2 Mapping AUXIOs to DIO Pins
      3. 15.3.3 Control External LNA/PA (Range Extender) with I/Os
      4. 15.3.4 Map the 32 kHz System Clock (SCLK_LF Clock) to DIO
    4. 15.4  Edge Detection on DIO Pins
      1. 15.4.1 Configure DIO as GPIO Input to Generate Interrupt on Edge Detect
    5. 15.5  Unused I/O Pins
    6. 15.6  GPIO
    7. 15.7  I/O Pin Capability
    8. 15.8  Peripheral PORT_IDs
    9. 15.9  I/O Pins
      1. 15.9.1 Input/Output Modes
        1. 15.9.1.1 Physical Pin
        2. 15.9.1.2 Pin Configuration
    10. 15.10 IOC Registers
      1. 15.10.1 AON_IOC Registers
      2. 15.10.2 GPIO Registers
      3. 15.10.3 IOC Registers
  17. 16Micro Direct Memory Access (µDMA)
    1. 16.1 Introduction
    2. 16.2 Block Diagram
    3. 16.3 Functional Description
      1. 16.3.1  Channel Assignments
      2. 16.3.2  Priority
      3. 16.3.3  Arbitration Size
      4. 16.3.4  Request Types
        1. 16.3.4.1 Single Request
        2. 16.3.4.2 Burst Request
      5. 16.3.5  Channel Configuration
      6. 16.3.6  Transfer Modes
        1. 16.3.6.1 Stop Mode
        2. 16.3.6.2 Basic Mode
        3. 16.3.6.3 Auto Mode
        4. 16.3.6.4 Ping-Pong Mode
        5. 16.3.6.5 Memory Scatter-Gather Mode
        6. 16.3.6.6 Peripheral Scatter-Gather Mode
      7. 16.3.7  Transfer Size and Increments
      8. 16.3.8  Peripheral Interface
      9. 16.3.9  Software Request
      10. 16.3.10 Interrupts and Errors
    4. 16.4 Initialization and Configuration
      1. 16.4.1 Module Initialization
      2. 16.4.2 Configuring a Memory-to-Memory Transfer
        1. 16.4.2.1 Configure the Channel Attributes
        2. 16.4.2.2 Configure the Channel Control Structure
        3. 16.4.2.3 Start the Transfer
    5. 16.5 UDMA Registers
  18. 17Timers
    1. 17.1 Introduction
    2. 17.2 Block Diagram
    3. 17.3 Functional Description
      1. 17.3.1 GPTM Reset Conditions
      2. 17.3.2 Timer Modes
        1. 17.3.2.1 One-Shot or Periodic Timer Mode
        2. 17.3.2.2 Input Edge-Count Mode
        3. 17.3.2.3 Input Edge-Time Mode
        4. 17.3.2.4 PWM Mode
        5. 17.3.2.5 Wait-for-Trigger Mode
      3. 17.3.3 Synchronizing GPT Blocks
      4. 17.3.4 Accessing Concatenated 16- and 32-Bit GPTM Register Values
    4. 17.4 Initialization and Configuration
      1. 17.4.1 One-Shot and Periodic Timer Modes
      2. 17.4.2 Input Edge-Count Mode
      3. 17.4.3 Input Edge-Timing Mode
      4. 17.4.4 PWM Mode
      5. 17.4.5 Producing DMA Trigger Events
    5. 17.5 GPT Registers
  19. 18Real-Time Clock (RTC)
    1. 18.1 Introduction
    2. 18.2 Functional Specifications
      1. 18.2.1 Functional Overview
      2. 18.2.2 Free-Running Counter
      3. 18.2.3 Channels
        1. 18.2.3.1 Capture and Compare
      4. 18.2.4 Events
    3. 18.3 RTC Register Information
      1. 18.3.1 Register Access
      2. 18.3.2 Entering Sleep and Wakeup From Sleep
      3. 18.3.3 AON_RTC:SYNC Register
    4. 18.4 RTC Registers
      1. 18.4.1 AON_RTC Registers
  20. 19Watchdog Timer (WDT)
    1. 19.1 Introduction
    2. 19.2 Functional Description
    3. 19.3 Initialization and Configuration
    4. 19.4 WDT Registers
  21. 20AUX Domain Sensor Controller and Peripherals
    1. 20.1 Introduction
      1. 20.1.1 AUX Block Diagram
    2. 20.2 Power and Clock Management
      1. 20.2.1 Operational Modes
        1. 20.2.1.1 Dual-Rate AUX Clock
      2. 20.2.2 Use Scenarios
        1. 20.2.2.1 MCU
        2. 20.2.2.2 Sensor Controller
      3. 20.2.3 SCE Clock Emulation
      4. 20.2.4 AUX RAM Retention
    3. 20.3 Sensor Controller
      1. 20.3.1 Sensor Controller Studio
        1. 20.3.1.1 Programming Model
        2. 20.3.1.2 Task Development
        3. 20.3.1.3 Task Testing, Task Debugging and Run-Time Logging
        4. 20.3.1.4 Documentation
      2. 20.3.2 Sensor Controller Engine (SCE)
        1. 20.3.2.1  Registers
          1.        Pipeline Hazards
        2. 20.3.2.2  Memory Architecture
          1.        Memory Access to Instructions and Data
          2.        I/O Access to Module Registers
        3. 20.3.2.3  Program Flow
          1.        Zero-Overhead Loop
        4. 20.3.2.4  Instruction Set
          1. 20.3.2.4.1 Instruction Timing
          2. 20.3.2.4.2 Instruction Prefix
          3. 20.3.2.4.3 Instructions
        5. 20.3.2.5  SCE Event Interface
        6. 20.3.2.6  Math Accelerator (MAC)
        7. 20.3.2.7  Programmable Microsecond Delay
        8. 20.3.2.8  Wake-Up Event Handling
        9. 20.3.2.9  Access to AON Domain Registers
        10. 20.3.2.10 VDDR Recharge
    4. 20.4 Digital Peripheral Modules
      1. 20.4.1 Overview
        1. 20.4.1.1 DDI Control-Configuration
      2. 20.4.2 Analog I/O Digital I/O (AIODIO)
        1. 20.4.2.1 Introduction
        2. 20.4.2.2 Functional Description
          1. 20.4.2.2.1 Mapping to DIO Pins
          2. 20.4.2.2.2 Configuration
          3. 20.4.2.2.3 GPIO Mode
          4. 20.4.2.2.4 Input Buffer
          5. 20.4.2.2.5 Data Output Source
      3. 20.4.3 Semaphore (SMPH)
        1. 20.4.3.1 Introduction
        2. 20.4.3.2 Functional Description
        3. 20.4.3.3 Semaphore Allocation in TI Software
      4. 20.4.4 SPI Master (SPIM)
        1. 20.4.4.1 Introduction
        2. 20.4.4.2 Functional Description
          1. 20.4.4.2.1 TX and RX Operations
          2. 20.4.4.2.2 Configuration
          3. 20.4.4.2.3 Timing Diagrams
      5. 20.4.5 Time-to-Digital Converter (TDC)
        1. 20.4.5.1 Introduction
        2. 20.4.5.2 Functional Description
          1. 20.4.5.2.1 Command
          2. 20.4.5.2.2 Conversion Time Configuration
          3. 20.4.5.2.3 Status and Result
          4. 20.4.5.2.4 Clock Source Selection
            1. 20.4.5.2.4.1 Counter Clock
            2. 20.4.5.2.4.2 Reference Clock
          5. 20.4.5.2.5 Start and Stop Events
          6. 20.4.5.2.6 Prescaler
        3. 20.4.5.3 Supported Measurement Types
          1. 20.4.5.3.1 Measure Pulse Width
          2. 20.4.5.3.2 Measure Frequency
          3. 20.4.5.3.3 Measure Time Between Edges of Different Events Sources
            1. 20.4.5.3.3.1 Asynchronous Counter Start – Ignore 0 Stop Events
            2. 20.4.5.3.3.2 Synchronous Counter Start – Ignore 0 Stop Events
            3. 20.4.5.3.3.3 Asynchronous Counter Start – Ignore Stop Events
            4. 20.4.5.3.3.4 Synchronous Counter Start – Ignore Stop Events
          4. 20.4.5.3.4 Pulse Counting
      6. 20.4.6 Timer01
        1. 20.4.6.1 Introduction
        2. 20.4.6.2 Functional Description
      7. 20.4.7 Timer2
        1. 20.4.7.1 Introduction
        2. 20.4.7.2 Functional Description
          1. 20.4.7.2.1 Clock Source
          2. 20.4.7.2.2 Clock Prescaler
          3. 20.4.7.2.3 Counter
          4. 20.4.7.2.4 Event Outputs
          5. 20.4.7.2.5 Channel Actions
            1. 20.4.7.2.5.1 Period and Pulse Width Measurement
            2. 20.4.7.2.5.2 Clear on Zero, Toggle on Compare Repeatedly
            3. 20.4.7.2.5.3 Set on Zero, Toggle on Compare Repeatedly
          6. 20.4.7.2.6 Asynchronous Bus Bridge
    5. 20.5 Analog Peripheral Modules
      1. 20.5.1 Overview
        1. 20.5.1.1 ADI Control-Configuration
        2. 20.5.1.2 Block Diagram
      2. 20.5.2 Analog-to-Digital Converter (ADC)
        1. 20.5.2.1 Introduction
        2. 20.5.2.2 Functional Description
          1. 20.5.2.2.1 Input Selection and Scaling
          2. 20.5.2.2.2 Reference Selection
          3. 20.5.2.2.3 ADC Sample Mode
          4. 20.5.2.2.4 ADC Clock Source
          5. 20.5.2.2.5 ADC Trigger
          6. 20.5.2.2.6 Sample FIFO
          7. 20.5.2.2.7 µDMA Interface
          8. 20.5.2.2.8 Resource Ownership and Usage
      3. 20.5.3 Comparator A (COMPA)
        1. 20.5.3.1 Introduction
        2. 20.5.3.2 Functional Description
          1. 20.5.3.2.1 Input Selection
          2. 20.5.3.2.2 Reference Selection
          3. 20.5.3.2.3 LPM Bias and COMPA Enable
          4. 20.5.3.2.4 Resource Ownership and Usage
      4. 20.5.4 Comparator B (COMPB)
        1. 20.5.4.1 Introduction
        2. 20.5.4.2 Functional Description
          1. 20.5.4.2.1 Input Selection
          2. 20.5.4.2.2 Reference Selection
          3. 20.5.4.2.3 Resource Ownership and Usage
            1. 20.5.4.2.3.1 Sensor Controller Wakeup
            2. 20.5.4.2.3.2 System CPU Wakeup
      5. 20.5.5 Reference Digital-to-Analog Converter (DAC)
        1. 20.5.5.1 Introduction
        2. 20.5.5.2 Functional Description
          1. 20.5.5.2.1 Reference Selection
          2. 20.5.5.2.2 Output Voltage Control and Range
          3. 20.5.5.2.3 Sample Clock
            1. 20.5.5.2.3.1 Automatic Phase Control
            2. 20.5.5.2.3.2 Manual Phase Control
            3. 20.5.5.2.3.3 Operational Mode Dependency
          4. 20.5.5.2.4 Output Selection
            1. 20.5.5.2.4.1 Buffer
            2. 20.5.5.2.4.2 External Load
            3. 20.5.5.2.4.3 COMPA_REF
            4. 20.5.5.2.4.4 COMPB_REF
          5. 20.5.5.2.5 LPM Bias
          6. 20.5.5.2.6 Resource Ownership and Usage
      6. 20.5.6 Current Source (ISRC)
        1. 20.5.6.1 Introduction
        2. 20.5.6.2 Functional Description
          1. 20.5.6.2.1 Programmable Current
          2. 20.5.6.2.2 Voltage Reference
          3. 20.5.6.2.3 ISRC Enable
          4. 20.5.6.2.4 Temperature Dependency
          5. 20.5.6.2.5 Resource Ownership and Usage
    6. 20.6 Event Routing and Usage
      1. 20.6.1 AUX Event Bus
        1. 20.6.1.1 Event Signals
        2. 20.6.1.2 Event Subscribers
          1. 20.6.1.2.1 Event Detection
            1. 20.6.1.2.1.1 Detection of Asynchronous Events
            2. 20.6.1.2.1.2 Detection of Synchronous Events
      2. 20.6.2 Event Observation on External Pin
      3. 20.6.3 Events From MCU Domain
      4. 20.6.4 Events to MCU Domain
      5. 20.6.5 Events From AON Domain
      6. 20.6.6 Events to AON Domain
      7. 20.6.7 µDMA Interface
    7. 20.7 Sensor Controller Alias Register Space
    8. 20.8 AUX Domain Sensor Controller and Peripherals Registers
      1. 20.8.1  ADI_4_AUX Registers
      2. 20.8.2  AUX_AIODIO Registers
      3. 20.8.3  AUX_EVCTL Registers
      4. 20.8.4  AUX_SMPH Registers
      5. 20.8.5  AUX_TDC Registers
      6. 20.8.6  AUX_TIMER01 Registers
      7. 20.8.7  AUX_TIMER2 Registers
      8. 20.8.8  AUX_ANAIF Registers
      9. 20.8.9  AUX_SYSIF Registers
      10. 20.8.10 AUX_SPIM Registers
      11. 20.8.11 AUX_MAC Registers
      12. 20.8.12 AUX_SCE Registers
  22. 21Battery Monitor and Temperature Sensor (BATMON)
    1. 21.1 Introduction
    2. 21.2 Functional Description
    3. 21.3 AON_BATMON Registers
  23. 22Universal Asynchronous Receiver/Transmitter (UART)
    1. 22.1 Introduction
    2. 22.2 Block Diagram
    3. 22.3 Signal Description
    4. 22.4 Functional Description
      1. 22.4.1 Transmit and Receive Logic
      2. 22.4.2 Baud Rate Generation
      3. 22.4.3 Data Transmission
      4. 22.4.4 Modem Handshake Support
        1. 22.4.4.1 Signaling
        2. 22.4.4.2 Flow Control
          1. 22.4.4.2.1 Hardware Flow Control (RTS and CTS)
          2. 22.4.4.2.2 Software Flow Control (Modem Status Interrupts)
      5. 22.4.5 FIFO Operation
      6. 22.4.6 Interrupts
      7. 22.4.7 Loopback Operation
    5. 22.5 Interface to µDMA
    6. 22.6 Initialization and Configuration
    7. 22.7 UART Registers
  24. 23Serial Peripheral Interface (SPI)
    1. 23.1 Introduction
    2. 23.2 Block Diagram
    3. 23.3 Signal Description
    4. 23.4 Functional Description
      1. 23.4.1 Bit Rate Generation
      2. 23.4.2 FIFO Operation
        1. 23.4.2.1 Transmit FIFO
          1. 23.4.2.1.1 Repeated Transmit Operation
        2. 23.4.2.2 Receive FIFO
        3. 23.4.2.3 FIFO Flush
      3. 23.4.3 Interrupts
      4. 23.4.4 Data Format
      5. 23.4.5 Delayed Data Sampling
      6. 23.4.6 Frame Formats
        1. 23.4.6.1 Texas Instruments Synchronous Serial Frame Format
        2. 23.4.6.2 Motorola SPI Frame Format
          1. 23.4.6.2.1 SPO Clock Polarity Bit
          2. 23.4.6.2.2 SPH Phase Control Bit
        3. 23.4.6.3 Motorola SPI Frame Format with SPO = 0 and SPH = 0
        4. 23.4.6.4 Motorola SPI Frame Format with SPO = 0 and SPH = 1
        5. 23.4.6.5 Motorola SPI Frame Format with SPO = 1 and SPH = 0
        6. 23.4.6.6 Motorola SPI Frame Format with SPO = 1 and SPH = 1
        7. 23.4.6.7 MICROWIRE Frame Format
    5. 23.5 μDMA Operation
    6. 23.6 Initialization and Configuration
    7. 23.7 SPI Registers
  25. 24Inter-Integrated Circuit (I2C)
    1. 24.1 Introduction
    2. 24.2 Block Diagram
    3. 24.3 Functional Description
      1. 24.3.1 I2C Bus Functional Overview
        1. 24.3.1.1 Start and Stop Conditions
        2. 24.3.1.2 Data Format with 7-Bit Address
        3. 24.3.1.3 Data Validity
        4. 24.3.1.4 Acknowledge
        5. 24.3.1.5 Arbitration
      2. 24.3.2 Available Speed Modes
        1. 24.3.2.1 Standard and Fast Modes
      3. 24.3.3 Interrupts
        1. 24.3.3.1 I2C Master Interrupts
        2. 24.3.3.2 I2C Slave Interrupts
      4. 24.3.4 Loopback Operation
      5. 24.3.5 Command Sequence Flow Charts
        1. 24.3.5.1 I2C Master Command Sequences
        2. 24.3.5.2 I2C Slave Command Sequences
    4. 24.4 Initialization and Configuration
    5. 24.5 I2C Registers
  26. 25Inter-IC Sound (I2S)
    1. 25.1 Introduction
    2. 25.2 Block Diagram
    3. 25.3 Signal Description
    4. 25.4 Functional Description
      1. 25.4.1 Dependencies
        1. 25.4.1.1 System CPU Deep-Sleep Mode
      2. 25.4.2 Pin Configuration
      3. 25.4.3 Serial Format Configuration
      4. 25.4.4 I2S
        1. 25.4.4.1 Register Configuration
      5. 25.4.5 Left-Justified (LJF)
        1. 25.4.5.1 Register Configuration
      6. 25.4.6 Right-Justified (RJF)
        1. 25.4.6.1 Register Configuration
      7. 25.4.7 DSP
        1. 25.4.7.1 Register Configuration
      8. 25.4.8 Clock Configuration
        1. 25.4.8.1 Internal Audio Clock Source
        2. 25.4.8.2 External Audio Clock Source
    5. 25.5 Memory Interface
      1. 25.5.1 Sample Word Length
      2. 25.5.2 Channel Mapping
      3. 25.5.3 Sample Storage in Memory
      4. 25.5.4 DMA Operation
        1. 25.5.4.1 Start-Up
        2. 25.5.4.2 Operation
        3. 25.5.4.3 Shutdown
    6. 25.6 Samplestamp Generator
      1. 25.6.1 Samplestamp Counters
      2. 25.6.2 Start-Up Triggers
      3. 25.6.3 Samplestamp Capture
      4. 25.6.4 Achieving Constant Audio Latency
    7. 25.7 Error Detection
    8. 25.8 Usage
      1. 25.8.1 Start-Up Sequence
      2. 25.8.2 Shutdown Sequence
    9. 25.9 I2S Registers
  27. 26Radio
    1. 26.1  RF Core
      1. 26.1.1 High-Level Description and Overview
    2. 26.2  Radio Doorbell
      1. 26.2.1 Special Boot Process
      2. 26.2.2 Command and Status Register and Events
      3. 26.2.3 RF Core Interrupts
        1. 26.2.3.1 RF Command and Packet Engine Interrupts
        2. 26.2.3.2 RF Core Hardware Interrupts
        3. 26.2.3.3 RF Core Command Acknowledge Interrupt
      4. 26.2.4 Radio Timer
        1. 26.2.4.1 Compare and Capture Events
        2. 26.2.4.2 Radio Timer Outputs
        3. 26.2.4.3 Synchronization with Real-Time Clock
    3. 26.3  RF Core HAL
      1. 26.3.1 Hardware Support
      2. 26.3.2 Firmware Support
        1. 26.3.2.1 Commands
        2. 26.3.2.2 Command Status
        3. 26.3.2.3 Interrupts
        4. 26.3.2.4 Passing Data
        5. 26.3.2.5 Command Scheduling
          1. 26.3.2.5.1 Triggers
          2. 26.3.2.5.2 Conditional Execution
          3. 26.3.2.5.3 Handling Before Start of Command
        6. 26.3.2.6 Command Data Structures
          1. 26.3.2.6.1 Radio Operation Command Structure
        7. 26.3.2.7 Data Entry Structures
          1. 26.3.2.7.1 Data Entry Queue
          2. 26.3.2.7.2 Data Entry
          3. 26.3.2.7.3 Pointer Entry
          4. 26.3.2.7.4 Partial Read RX Entry
        8. 26.3.2.8 External Signaling
      3. 26.3.3 Command Definitions
        1. 26.3.3.1 Protocol-Independent Radio Operation Commands
          1. 26.3.3.1.1  CMD_NOP: No Operation Command
          2. 26.3.3.1.2  CMD_RADIO_SETUP: Set Up Radio Settings Command
          3. 26.3.3.1.3  CMD_FS_POWERUP: Power Up Frequency Synthesizer
          4. 26.3.3.1.4  CMD_FS_POWERDOWN: Power Down Frequency Synthesizer
          5. 26.3.3.1.5  CMD_FS: Frequency Synthesizer Controls Command
          6. 26.3.3.1.6  CMD_FS_OFF: Turn Off Frequency Synthesizer
          7. 26.3.3.1.7  CMD_RX_TEST: Receiver Test Command
          8. 26.3.3.1.8  CMD_TX_TEST: Transmitter Test Command
          9. 26.3.3.1.9  CMD_SYNC_STOP_RAT: Synchronize and Stop Radio Timer Command
          10. 26.3.3.1.10 CMD_SYNC_START_RAT: Synchronously Start Radio Timer Command
          11. 26.3.3.1.11 CMD_COUNT: Counter Command
          12. 26.3.3.1.12 CMD_SCH_IMM: Run Immediate Command as Radio Operation
          13. 26.3.3.1.13 CMD_COUNT_BRANCH: Counter Command with Branch of Command Chain
          14. 26.3.3.1.14 CMD_PATTERN_CHECK: Check a Value in Memory Against a Pattern
        2. 26.3.3.2 Protocol-Independent Direct and Immediate Commands
          1. 26.3.3.2.1  CMD_ABORT: ABORT Command
          2. 26.3.3.2.2  CMD_STOP: Stop Command
          3. 26.3.3.2.3  CMD_GET_RSSI: Read RSSI Command
          4. 26.3.3.2.4  CMD_UPDATE_RADIO_SETUP: Update Radio Settings Command
          5. 26.3.3.2.5  CMD_TRIGGER: Generate Command Trigger
          6. 26.3.3.2.6  CMD_GET_FW_INFO: Request Information on the Firmware Being Run
          7. 26.3.3.2.7  CMD_START_RAT: Asynchronously Start Radio Timer Command
          8. 26.3.3.2.8  CMD_PING: Respond with Interrupt
          9. 26.3.3.2.9  CMD_READ_RFREG: Read RF Core Register
          10. 26.3.3.2.10 CMD_SET_RAT_CMP: Set RAT Channel to Compare Mode
          11. 26.3.3.2.11 CMD_SET_RAT_CPT: Set RAT Channel to Capture Mode
          12. 26.3.3.2.12 CMD_DISABLE_RAT_CH: Disable RAT Channel
          13. 26.3.3.2.13 CMD_SET_RAT_OUTPUT: Set RAT Output to a Specified Mode
          14. 26.3.3.2.14 CMD_ARM_RAT_CH: Arm RAT Channel
          15. 26.3.3.2.15 CMD_DISARM_RAT_CH: Disarm RAT Channel
          16. 26.3.3.2.16 CMD_SET_TX_POWER: Set Transmit Power
          17. 26.3.3.2.17 CMD_SET_TX20_POWER: Set Transmit Power of the 20 dBm PA
          18. 26.3.3.2.18 CMD_MODIFY_FS: Set New Synthesizer Frequency Without Recalibration
          19. 26.3.3.2.19 CMD_BUS_REQUEST: Request System BUS Available for RF Core
      4. 26.3.4 Immediate Commands for Data Queue Manipulation
        1. 26.3.4.1 CMD_ADD_DATA_ENTRY: Add Data Entry to Queue
        2. 26.3.4.2 CMD_REMOVE_DATA_ENTRY: Remove First Data Entry from Queue
        3. 26.3.4.3 CMD_FLUSH_QUEUE: Flush Queue
        4. 26.3.4.4 CMD_CLEAR_RX: Clear All RX Queue Entries
        5. 26.3.4.5 CMD_REMOVE_PENDING_ENTRIES: Remove Pending Entries from Queue
    4. 26.4  Data Queue Usage
      1. 26.4.1 Operations on Data Queues Available Only for Internal Radio CPU Operations
        1. 26.4.1.1 PROC_ALLOCATE_TX: Allocate TX Entry for Reading
        2. 26.4.1.2 PROC_FREE_DATA_ENTRY: Free Allocated Data Entry
        3. 26.4.1.3 PROC_FINISH_DATA_ENTRY: Finish Use of First Data Entry From Queue
        4. 26.4.1.4 PROC_ALLOCATE_RX: Allocate RX Buffer for Storing Data
        5. 26.4.1.5 PROC_FINISH_RX: Commit Received Data to RX Data Entry
      2. 26.4.2 Radio CPU Usage Model
        1. 26.4.2.1 Receive Queues
        2. 26.4.2.2 Transmit Queues
    5. 26.5  IEEE 802.15.4
      1. 26.5.1 IEEE 802.15.4 Commands
        1. 26.5.1.1 IEEE 802.15.4 Radio Operation Command Structures
        2. 26.5.1.2 IEEE 802.15.4 Immediate Command Structures
        3. 26.5.1.3 Output Structures
        4. 26.5.1.4 Other Structures and Bit Fields
      2. 26.5.2 Interrupts
      3. 26.5.3 Data Handling
        1. 26.5.3.1 Receive Buffers
        2. 26.5.3.2 Transmit Buffers
      4. 26.5.4 Radio Operation Commands
        1. 26.5.4.1 RX Operation
          1. 26.5.4.1.1 Frame Filtering and Source Matching
            1. 26.5.4.1.1.1 Frame Filtering
            2. 26.5.4.1.1.2 Source Matching
          2. 26.5.4.1.2 Frame Reception
          3. 26.5.4.1.3 ACK Transmission
          4. 26.5.4.1.4 End of Receive Operation
          5. 26.5.4.1.5 CCA Monitoring
        2. 26.5.4.2 Energy Detect Scan Operation
        3. 26.5.4.3 CSMA-CA Operation
        4. 26.5.4.4 Transmit Operation
        5. 26.5.4.5 Receive Acknowledgment Operation
        6. 26.5.4.6 Abort Background-Level Operation Command
      5. 26.5.5 Immediate Commands
        1. 26.5.5.1 Modify CCA Parameter Command
        2. 26.5.5.2 Modify Frame-Filtering Parameter Command
        3. 26.5.5.3 Enable or Disable Source Matching Entry Command
        4. 26.5.5.4 Abort Foreground-Level Operation Command
        5. 26.5.5.5 Stop Foreground-Level Operation Command
        6. 26.5.5.6 Request CCA and RSSI Information Command
    6. 26.6  Bluetooth® Low Energy
      1. 26.6.1 Bluetooth® Low Energy Commands
        1. 26.6.1.1 Command Data Definitions
          1. 26.6.1.1.1 Bluetooth® Low Energy Command Structures
        2. 26.6.1.2 Parameter Structures
        3. 26.6.1.3 Output Structures
        4. 26.6.1.4 Other Structures and Bit Fields
      2. 26.6.2 Interrupts
    7. 26.7  Data Handling
      1. 26.7.1 Receive Buffers
      2. 26.7.2 Transmit Buffers
    8. 26.8  Radio Operation Command Descriptions
      1. 26.8.1  Bluetooth® 5 Radio Setup Command
      2. 26.8.2  Radio Operation Commands for Bluetooth® Low Energy Packet Transfer
      3. 26.8.3  Coding Selection for Coded PHY
      4. 26.8.4  Parameter Override
      5. 26.8.5  Link Layer Connection
      6. 26.8.6  Slave Command
      7. 26.8.7  Master Command
      8. 26.8.8  Legacy Advertiser
        1. 26.8.8.1 Connectable Undirected Advertiser Command
        2. 26.8.8.2 Connectable Directed Advertiser Command
        3. 26.8.8.3 Non-connectable Advertiser Command
        4. 26.8.8.4 Scannable Undirected Advertiser Command
      9. 26.8.9  Bluetooth® 5 Advertiser Commands
        1. 26.8.9.1 Common Extended Advertising Packets
        2. 26.8.9.2 Extended Advertiser Command
        3. 26.8.9.3 Secondary Channel Advertiser Command
      10. 26.8.10 Scanner Commands
        1. 26.8.10.1 Scanner Receiving Legacy Advertising Packets on Primary Channel
        2. 26.8.10.2 Scanner Receiving Extended Advertising Packets on Primary Channel
        3. 26.8.10.3 Scanner Receiving Extended Advertising Packets on Secondary Channel
        4. 26.8.10.4 ADI Filtering
        5. 26.8.10.5 End of Scanner Commands
      11. 26.8.11 Initiator Command
        1. 26.8.11.1 Initiator Receiving Legacy Advertising Packets on Primary Channel
        2. 26.8.11.2 Initiator Receiving Extended Advertising Packets on Primary Channel
        3. 26.8.11.3 Initiator Receiving Extended Advertising Packets on Secondary Channel
        4. 26.8.11.4 Automatic Window Offset Insertion
        5. 26.8.11.5 End of Initiator Commands
      12. 26.8.12 Generic Receiver Command
      13. 26.8.13 PHY Test Transmit Command
      14. 26.8.14 Whitelist Processing
      15. 26.8.15 Backoff Procedure
      16. 26.8.16 AUX Pointer Processing
      17. 26.8.17 Dynamic Change of Device Address
    9. 26.9  Immediate Commands
      1. 26.9.1 Update Advertising Payload Command
    10. 26.10 Proprietary Radio
      1. 26.10.1 Packet Formats
      2. 26.10.2 Commands
        1. 26.10.2.1 Command Data Definitions
          1. 26.10.2.1.1 Command Structures
        2. 26.10.2.2 Output Structures
        3. 26.10.2.3 Other Structures and Bit Fields
      3. 26.10.3 Interrupts
      4. 26.10.4 Data Handling
        1. 26.10.4.1 Receive Buffers
        2. 26.10.4.2 Transmit Buffers
      5. 26.10.5 Radio Operation Command Descriptions
        1. 26.10.5.1 End of Operation
        2. 26.10.5.2 Proprietary Mode Setup Command
          1. 26.10.5.2.1 IEEE 802.15.4g Packet Format
        3. 26.10.5.3 Transmitter Commands
          1. 26.10.5.3.1 Standard Transmit Command, CMD_PROP_TX
          2. 26.10.5.3.2 Advanced Transmit Command, CMD_PROP_TX_ADV
        4. 26.10.5.4 Receiver Commands
          1. 26.10.5.4.1 Standard Receive Command, CMD_PROP_RX
          2. 26.10.5.4.2 Advanced Receive Command, CMD_PROP_RX_ADV
        5. 26.10.5.5 Carrier-Sense Operation
          1. 26.10.5.5.1 Common Carrier-Sense Description
          2. 26.10.5.5.2 Carrier-Sense Command, CMD_PROP_CS
          3. 26.10.5.5.3 Sniff Mode Receiver Commands, CMD_PROP_RX_SNIFF and CMD_PROP_RX_ADV_SNIFF
      6. 26.10.6 Immediate Commands
        1. 26.10.6.1 Set Packet Length Command, CMD_PROP_SET_LEN
        2. 26.10.6.2 Restart Packet RX Command, CMD_PROP_RESTART_RX
    11. 26.11 Radio Registers
      1. 26.11.1 RFC_RAT Registers
      2. 26.11.2 RFC_DBELL Registers
      3. 26.11.3 RFC_PWR Registers
  28. 27Revision History
20.5.4.2.1 Input Selection

The COMPB positive input can connect to:

  • AUXIO19 through AUXIO26, which are analog-capable
  • Internal power-supply voltages

The user must ensure that the COMPB positive input only has one driver at all times. To avoid shorting signals together internally, TI provides ROM-based functions that ensure a break-before-make switching of the internal muxes.
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