SWCU191 February   2022 CC1311P3 , CC1311R3 , CC2651P3 , CC2651R3 , CC2651R3SIPA

 

  1. 1 Read This First
    1.     About This Manual
    2.     Devices
    3.     Register, Field, and Bit Calls
    4.     Related Documentation
    5. 1.1 Trademarks
  2. 2 Architectural Overview
    1. 2.1 Target Applications
    2. 2.2 Overview
    3. 2.3 Functional Overview
      1. 2.3.1  Arm® Cortex®-M4
        1. 2.3.1.1 Processor Core
        2. 2.3.1.2 System Timer (SysTick)
        3. 2.3.1.3 Nested Vector Interrupt Controller (NVIC)
        4. 2.3.1.4 System Control Block
      2. 2.3.2  On-Chip Memory
        1. 2.3.2.1 SRAM
        2. 2.3.2.2 Flash Memory
        3. 2.3.2.3 ROM
      3. 2.3.3  Radio
      4. 2.3.4  Security Core
      5. 2.3.5  General-Purpose Timers
        1. 2.3.5.1 Watchdog Timer
        2. 2.3.5.2 Always-On Domain
      6. 2.3.6  Direct Memory Access
      7. 2.3.7  System Control and Clock
      8. 2.3.8  Serial Communication Peripherals
        1. 2.3.8.1 UART
        2. 2.3.8.2 I2C
        3. 2.3.8.3 I2S
        4. 2.3.8.4 SSI
      9. 2.3.9  Programmable I/Os
      10. 2.3.10 Analog Peripherals
      11. 2.3.11 Random Number Generator
      12. 2.3.12 cJTAG and JTAG
      13. 2.3.13 Power Supply System
        1. 2.3.13.1 Supply System
          1. 2.3.13.1.1 VDDS
          2. 2.3.13.1.2 VDDR
          3. 2.3.13.1.3 Digital Core Supply
          4. 2.3.13.1.4 Other Internal Supplies
        2. 2.3.13.2 DC/DC Converter
  3. 3 Arm® Cortex®-M4 Processor
    1. 3.1 Arm® Cortex®-M4 Processor Introduction
    2. 3.2 Block Diagram
    3. 3.3 Overview
      1. 3.3.1 System-Level Interface
      2. 3.3.2 Integrated Configurable Debug
      3. 3.3.3 Trace Port Interface Unit
      4. 3.3.4 Arm® Cortex®-M4 System Component Details
    4. 3.4 Programming Model
      1. 3.4.1 Processor Mode and Privilege Levels for Software Execution
      2. 3.4.2 Stacks
      3. 3.4.3 Exceptions and Interrupts
      4. 3.4.4 Data Types
    5. 3.5 Arm® Cortex®-M4 Core Registers
      1. 3.5.1 Core Register Map
      2. 3.5.2 Core Register Descriptions
        1. 3.5.2.1  Cortex®General-Purpose Register 0 (R0)
        2. 3.5.2.2  Cortex® General-Purpose Register 1 (R1)
        3. 3.5.2.3  Cortex® General-Purpose Register 2 (R2)
        4. 3.5.2.4  Cortex® General-Purpose Register 3 (R3)
        5. 3.5.2.5  Cortex® General-Purpose Register 4 (R4)
        6. 3.5.2.6  Cortex® General-Purpose Register 5 (R5)
        7. 3.5.2.7  Cortex® General-Purpose Register 6 (R6)
        8. 3.5.2.8  Cortex® General-Purpose Register 7 (R7)
        9. 3.5.2.9  Cortex® General-Purpose Register 8 (R8)
        10. 3.5.2.10 Cortex® General-Purpose Register 9 (R9)
        11. 3.5.2.11 Cortex® General-Purpose Register 10 (R10)
        12. 3.5.2.12 Cortex® General-Purpose Register 11 (R11)
        13. 3.5.2.13 Cortex® General-Purpose Register 12 (R12)
        14. 3.5.2.14 Stack Pointer (SP)
        15. 3.5.2.15 Link Register (LR)
        16. 3.5.2.16 Program Counter (PC)
        17. 3.5.2.17 Program Status Register (PSR)
        18. 3.5.2.18 Priority Mask Register (PRIMASK)
        19. 3.5.2.19 Fault Mask Register (FAULTMASK)
        20. 3.5.2.20 Base Priority Mask Register (BASEPRI)
        21. 3.5.2.21 Control Register (CONTROL)
    6. 3.6 Instruction Set Summary
      1. 3.6.1 Arm® Cortex®-M4 Instructions
      2. 3.6.2 Load and Store Timings
      3. 3.6.3 Binary Compatibility With Other Cortex® Processors
    7. 3.7 Arm® Cortex®-M4 Processor Registers
      1. 3.7.1 CPU_DWT Registers
      2. 3.7.2 CPU_FPB Registers
      3. 3.7.3 CPU_ITM Registers
      4. 3.7.4 CPU_SCS Registers
      5. 3.7.5 CPU_TPIU Registers
  4. 4 Memory Map
    1. 4.1 Memory Map
  5. 5 Arm® Cortex®-M4 Peripherals
    1. 5.1 Arm® Cortex®-M4 Peripherals Introduction
    2. 5.2 Functional Description
      1. 5.2.1 SysTick
      2. 5.2.2 NVIC
        1. 5.2.2.1 Level-Sensitive and Pulse Interrupts
        2. 5.2.2.2 Hardware and Software Control of Interrupts
      3. 5.2.3 SCB
      4. 5.2.4 ITM
      5. 5.2.5 FPB
      6. 5.2.6 TPIU
      7. 5.2.7 DWT
  6. 6 Interrupts and Events
    1. 6.1 Exception Model
      1. 6.1.1 Exception States
      2. 6.1.2 Exception Types
      3. 6.1.3 Exception Handlers
      4. 6.1.4 Vector Table
      5. 6.1.5 Exception Priorities
      6. 6.1.6 Interrupt Priority Grouping
      7. 6.1.7 Exception Entry and Return
        1. 6.1.7.1 Exception Entry
        2. 6.1.7.2 Exception Return
    2. 6.2 Fault Handling
      1. 6.2.1 Fault Types
      2. 6.2.2 Fault Escalation and Hard Faults
      3. 6.2.3 Fault Status Registers and Fault Address Registers
      4. 6.2.4 Lockup
    3. 6.3 Event Fabric
      1. 6.3.1 Introduction
      2. 6.3.2 Event Fabric Overview
        1. 6.3.2.1 Registers
    4. 6.4 AON Event Fabric
      1. 6.4.1 Common Input Event List
      2. 6.4.2 Event Subscribers
        1. 6.4.2.1 Wake-Up Controller (WUC)
        2. 6.4.2.2 Real-Time Clock
        3. 6.4.2.3 MCU Event Fabric
    5. 6.5 MCU Event Fabric
      1. 6.5.1 Common Input Event List
      2. 6.5.2 Event Subscribers
        1. 6.5.2.1 System CPU
        2. 6.5.2.2 NMI
        3. 6.5.2.3 Freeze
    6. 6.6 AON Events
    7. 6.7 Interrupts and Events Registers
      1. 6.7.1 AON_EVENT Registers
      2. 6.7.2 EVENT Registers
  7. 7 JTAG Interface
    1. 7.1  Top-Level Debug System
    2. 7.2  cJTAG
      1. 7.2.1 cJTAG Commands
        1. 7.2.1.1 Mandatory Commands
      2. 7.2.2 Programming Sequences
        1. 7.2.2.1 Opening Command Window
        2. 7.2.2.2 Changing to 4-Pin Mode
        3. 7.2.2.3 Close Command Window
    3. 7.3  ICEPick
      1. 7.3.1 Secondary TAPs
        1. 7.3.1.1 Slave DAP (CPU DAP)
        2. 7.3.1.2 Ordering Slave TAPs and DAPs
      2. 7.3.2 ICEPick Registers
        1. 7.3.2.1 IR Instructions
        2. 7.3.2.2 Data Shift Register
        3. 7.3.2.3 Instruction Register
        4. 7.3.2.4 Bypass Register
        5. 7.3.2.5 Device Identification Register
        6. 7.3.2.6 User Code Register
        7. 7.3.2.7 ICEPick Identification Register
        8. 7.3.2.8 Connect Register
      3. 7.3.3 Router Scan Chain
      4. 7.3.4 TAP Routing Registers
        1. 7.3.4.1 ICEPick Control Block
          1. 7.3.4.1.1 All0s Register
          2. 7.3.4.1.2 ICEPick Control Register
          3. 7.3.4.1.3 Linking Mode Register
        2. 7.3.4.2 Test TAP Linking Block
          1. 7.3.4.2.1 Secondary Test TAP Register
        3. 7.3.4.3 Debug TAP Linking Block
          1. 7.3.4.3.1 Secondary Debug TAP Register
    4. 7.4  ICEMelter
    5. 7.5  Serial Wire Viewer (SWV)
    6. 7.6  Halt In Boot (HIB)
    7. 7.7  Debug and Shutdown
    8. 7.8  Debug Features Supported Through WUC TAP
    9. 7.9  Profiler Register
    10. 7.10 Boundary Scan
  8. 8 Power, Reset and Clock Management (PRCM)
    1. 8.1 Introduction
    2. 8.2 System CPU Mode
    3. 8.3 Supply System
      1. 8.3.1 Internal DC/DC Converter and Global LDO
    4. 8.4 Digital Power Partitioning
      1. 8.4.1 MCU_VD
        1. 8.4.1.1 MCU_VD Power Domains
      2. 8.4.2 AON_VD
        1. 8.4.2.1 AON_VD Power Domains
    5. 8.5 Clock Management
      1. 8.5.1 System Clocks
        1. 8.5.1.1 Controlling the Oscillators
      2. 8.5.2 Clocks in MCU_VD
        1. 8.5.2.1 Clock Gating
        2. 8.5.2.2 Scaler to GPTs
        3. 8.5.2.3 Scaler to WDT
      3. 8.5.3 Clocks in AON_VD
    6. 8.6 Power Modes
      1. 8.6.1 Start-Up State
      2. 8.6.2 Active Mode
      3. 8.6.3 Idle Mode
      4. 8.6.4 Standby Mode
      5. 8.6.5 Shutdown Mode
    7. 8.7 Reset
      1. 8.7.1 System Resets
        1. 8.7.1.1 Clock Loss Detection
        2. 8.7.1.2 Software-Initiated System Reset
        3. 8.7.1.3 Warm Reset Converted to System Reset
      2. 8.7.2 Reset of the MCU_VD Power Domains and Modules
      3. 8.7.3 Reset of AON_VD
    8. 8.8 PRCM Registers
      1. 8.8.1 OSC_DIG Registers
      2. 8.8.2 PRCM Registers
      3. 8.8.3 AON_PMCTL Registers
  9. 9 Versatile Instruction Memory System (VIMS)
    1. 9.1 Introduction
    2. 9.2 VIMS Configurations
      1. 9.2.1 VIMS Modes
        1. 9.2.1.1 GPRAM Mode
        2. 9.2.1.2 Off Mode
        3. 9.2.1.3 Cache Mode
      2. 9.2.2 VIMS FLASH Line Buffers
      3. 9.2.3 VIMS Arbitration
      4. 9.2.4 VIMS Cache TAG Prefetch
    3. 9.3 VIMS Software Remarks
      1. 9.3.1 FLASH Program or Update
      2. 9.3.2 VIMS Retention
        1. 9.3.2.1 Mode 1
        2. 9.3.2.2 Mode 2
        3. 9.3.2.3 Mode 3
    4. 9.4 ROM
    5. 9.5 FLASH
      1. 9.5.1 FLASH Memory Protection
      2. 9.5.2 Memory Programming
      3. 9.5.3 FLASH Memory Programming
      4. 9.5.4 Power Management Requirements
    6. 9.6 ROM Functions
    7. 9.7 VIMS Registers
      1. 9.7.1 FLASH Registers
      2. 9.7.2 VIMS Registers
  10. 10SRAM
    1. 10.1 Introduction
    2. 10.2 Main Features
    3. 10.3 Data Retention
    4. 10.4 Parity and SRAM Error Support
    5. 10.5 SRAM Auto-Initialization
    6. 10.6 Parity Debug Behavior
    7. 10.7 SRAM Registers
      1. 10.7.1 SRAM Registers
  11. 11Bootloader
    1. 11.1 Bootloader Functionality
      1. 11.1.1 Bootloader Disabling
      2. 11.1.2 Bootloader Backdoor
    2. 11.2 Bootloader Interfaces
      1. 11.2.1 Packet Handling
        1. 11.2.1.1 Packet Acknowledge and Not-Acknowledge Bytes
      2. 11.2.2 Transport Layer
        1. 11.2.2.1 UART Transport
          1. 11.2.2.1.1 UART Baud Rate Automatic Detection
        2. 11.2.2.2 SSI Transport
      3. 11.2.3 Serial Bus Commands
        1. 11.2.3.1  COMMAND_PING
        2. 11.2.3.2  COMMAND_DOWNLOAD
        3. 11.2.3.3  COMMAND_SEND_DATA
        4. 11.2.3.4  COMMAND_SECTOR_ERASE
        5. 11.2.3.5  COMMAND_GET_STATUS
        6. 11.2.3.6  COMMAND_RESET
        7. 11.2.3.7  COMMAND_GET_CHIP_ID
        8. 11.2.3.8  COMMAND_CRC32
        9. 11.2.3.9  COMMAND_BANK_ERASE
        10. 11.2.3.10 COMMAND_MEMORY_READ
        11. 11.2.3.11 COMMAND_MEMORY_WRITE
        12. 11.2.3.12 COMMAND_SET_CCFG
        13. 11.2.3.13 COMMAND_DOWNLOAD_CRC
  12. 12Device Configuration
    1. 12.1 Customer Configuration (CCFG)
    2. 12.2 CCFG Registers
      1. 12.2.1 CCFG Registers
    3. 12.3 Factory Configuration (FCFG)
    4. 12.4 FCFG Registers
      1. 12.4.1 FCFG1 Registers
  13. 13Cryptography
    1. 13.1 AES Cryptoprocessor Introduction
    2. 13.2 Functional Description
      1. 13.2.1 Debug Capabilities
      2. 13.2.2 Exception Handling
    3. 13.3 Power Management and Sleep Modes
    4. 13.4 Hardware Description
      1. 13.4.1 AHB Slave Bus
      2. 13.4.2 AHB Master Bus
      3. 13.4.3 Interrupts
    5. 13.5 Module Description
      1. 13.5.1 Introduction
      2. 13.5.2 Module Memory Map
      3. 13.5.3 DMA Controller
        1. 13.5.3.1 Internal Operation
        2. 13.5.3.2 Supported DMA Operations
      4. 13.5.4 Master Control and Select Module
        1. 13.5.4.1 Algorithm Select Register
          1. 13.5.4.1.1 Algorithm Select
        2. 13.5.4.2 Master Transfer Protection
          1. 13.5.4.2.1 Master Transfer Protection Control
        3. 13.5.4.3 Software Reset
      5. 13.5.5 AES Engine
        1. 13.5.5.1 Second Key Registers (Internal, But Clearable)
        2. 13.5.5.2 AES Initialization Vector (IV) Registers
        3. 13.5.5.3 AES I/O Buffer Control, Mode, and Length Registers
        4. 13.5.5.4 Data Input and Output Registers
        5. 13.5.5.5 TAG Registers
      6. 13.5.6 Key Area Registers
        1. 13.5.6.1 Key Write Area Register
        2. 13.5.6.2 Key Written Area Register
        3. 13.5.6.3 Key Size Register
        4. 13.5.6.4 Key Store Read Area Register
    6. 13.6 AES Module Performance
      1. 13.6.1 Introduction
      2. 13.6.2 Performance for DMA-Based Operations
    7. 13.7 Programming Guidelines
      1. 13.7.1 One-Time Initialization After a Reset
      2. 13.7.2 DMAC and Master Control
        1. 13.7.2.1 Regular Use
        2. 13.7.2.2 Interrupting DMA Transfers
        3. 13.7.2.3 Interrupts, Hardware, and Software Synchronization
      3. 13.7.3 Encryption and Decryption
        1. 13.7.3.1 Key Store
          1. 13.7.3.1.1 Load Keys From External Memory
        2. 13.7.3.2 Basic AES Modes
          1. 13.7.3.2.1 AES-ECB
          2. 13.7.3.2.2 AES-CBC
          3. 13.7.3.2.3 AES-CTR
          4. 13.7.3.2.4 Programming Sequence With DMA Data
        3. 13.7.3.3 CBC-MAC
          1. 13.7.3.3.1 Programming Sequence for CBC-MAC
        4. 13.7.3.4 AES-CCM
          1. 13.7.3.4.1 Programming Sequence for AES-CCM
      4. 13.7.4 Exceptions Handling
        1. 13.7.4.1 Soft Reset
        2. 13.7.4.2 External Port Errors
        3. 13.7.4.3 Key Store Errors
    8. 13.8 Conventions and Compliances
      1. 13.8.1 Conventions Used in This Manual
        1. 13.8.1.1 Terminology
        2. 13.8.1.2 Formulas and Nomenclature
      2. 13.8.2 Compliance
    9. 13.9 Cryptography Registers
      1. 13.9.1 CRYPTO Registers
  14. 14I/O Controller (IOC)
    1. 14.1  Introduction
    2. 14.2  IOC Overview
    3. 14.3  I/O Mapping and Configuration
      1. 14.3.1 Basic I/O Mapping
      2. 14.3.2 Mapping AUXIOs to DIO Pins
      3. 14.3.3 Control External LNA/PA (Range Extender) With I/Os
      4. 14.3.4 Map the 32 kHz System Clock (LF Clock) to DIO
    4. 14.4  Edge Detection on DIO Pins
      1. 14.4.1 Configure DIO as GPIO Input to Generate Interrupt on EDGE DETECT
    5. 14.5  Unused I/O Pins
    6. 14.6  GPIO
    7. 14.7  I/O Pin Capability
    8. 14.8  Peripheral PORTIDs
    9. 14.9  I/O Pins
      1. 14.9.1 Input/Output Modes
        1. 14.9.1.1 Physical Pin
        2. 14.9.1.2 Pin Configuration
    10. 14.10 IOC Registers
      1. 14.10.1 AON_IOC Registers
      2. 14.10.2 GPIO Registers
      3. 14.10.3 IOC Registers
  15. 15Micro Direct Memory Access (µDMA)
    1. 15.1 μDMA Introduction
    2. 15.2 Block Diagram
    3. 15.3 Functional Description
      1. 15.3.1  Channel Assignments
      2. 15.3.2  Priority
      3. 15.3.3  Arbitration Size
      4. 15.3.4  Request Types
        1. 15.3.4.1 Single Request
        2. 15.3.4.2 Burst Request
      5. 15.3.5  Channel Configuration
      6. 15.3.6  Transfer Modes
        1. 15.3.6.1 Stop Mode
        2. 15.3.6.2 Basic Mode
        3. 15.3.6.3 Auto Mode
        4. 15.3.6.4 Ping-Pong
        5. 15.3.6.5 Memory Scatter-Gather Mode
        6. 15.3.6.6 Peripheral Scatter-Gather Mode
      7. 15.3.7  Transfer Size and Increments
      8. 15.3.8  Peripheral Interface
      9. 15.3.9  Software Request
      10. 15.3.10 Interrupts and Errors
    4. 15.4 Initialization and Configuration
      1. 15.4.1 Module Initialization
      2. 15.4.2 Configuring a Memory-to-Memory Transfer
        1. 15.4.2.1 Configure the Channel Attributes
        2. 15.4.2.2 Configure the Channel Control Structure
        3. 15.4.2.3 Start the Transfer
    5. 15.5 µDMA Registers
      1. 15.5.1 μDMA Registers
  16. 16Timers
    1. 16.1 General-Purpose Timers
    2. 16.2 Block Diagram
    3. 16.3 Functional Description
      1. 16.3.1 GPTM Reset Conditions
      2. 16.3.2 Timer Modes
        1. 16.3.2.1 One-Shot or Periodic Timer Mode
        2. 16.3.2.2 Input Edge-Count Mode
        3. 16.3.2.3 Input Edge-Time Mode
        4. 16.3.2.4 PWM Mode
        5. 16.3.2.5 Wait-for-Trigger Mode
      3. 16.3.3 Synchronizing GPT Blocks
      4. 16.3.4 Accessing Concatenated 16- and 32-Bit GPTM Register Values
    4. 16.4 Initialization and Configuration
      1. 16.4.1 One-Shot and Periodic Timer Modes
      2. 16.4.2 Input Edge-Count Mode
      3. 16.4.3 Input Edge-Timing Mode
      4. 16.4.4 PWM Mode
      5. 16.4.5 Producing DMA Trigger Events
    5. 16.5 GPTM Registers
      1. 16.5.1 GPT Registers
  17. 17Real-Time Clock (RTC)
    1. 17.1 Introduction
    2. 17.2 Functional Specifications
      1. 17.2.1 Functional Overview
      2. 17.2.2 Free-Running Counter
      3. 17.2.3 Channels
        1. 17.2.3.1 Capture and Compare
      4. 17.2.4 Events
    3. 17.3 RTC Register Information
      1. 17.3.1 Register Access
      2. 17.3.2 Entering Sleep and Wakeup From Sleep
      3. 17.3.3 AON_RTC:SYNC Register
    4. 17.4 RTC Registers
      1. 17.4.1 AON_RTC Registers
  18. 18Watchdog Timer (WDT)
    1. 18.1 Introduction
    2. 18.2 Functional Description
    3. 18.3 Initialization and Configuration
    4. 18.4 WDT Registers
      1. 18.4.1 WDT Registers
  19. 19True Random Number Generator (TRNG)
    1. 19.1 Introduction
    2. 19.2 Block Diagram
    3. 19.3 TRNG Software Reset
    4. 19.4 Interrupt Requests
    5. 19.5 TRNG Operation Description
      1. 19.5.1 TRNG Shutdown
      2. 19.5.2 TRNG Alarms
      3. 19.5.3 TRNG Entropy
    6. 19.6 TRNG Low-Level Programing Guide
      1. 19.6.1 Initialization
        1. 19.6.1.1 Interfacing Modules
        2. 19.6.1.2 TRNG Main Sequence
        3. 19.6.1.3 TRNG Operating Modes
          1. 19.6.1.3.1 Polling Mode
          2. 19.6.1.3.2 Interrupt Mode
    7. 19.7 TRNG Registers
      1. 19.7.1 TRNG Registers
  20. 20AUX Domain 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
      3. 20.2.3 SCE Clock Emulation
    3. 20.3 Digital Peripheral Modules
      1. 20.3.1 Overview
        1. 20.3.1.1 DDI Control-Configuration
      2. 20.3.2 AIODIO
        1. 20.3.2.1 Introduction
        2. 20.3.2.2 Functional Description
          1. 20.3.2.2.1 Mapping to DIO Pins
          2. 20.3.2.2.2 Configuration
          3. 20.3.2.2.3 GPIO Mode
          4. 20.3.2.2.4 Input Buffer
          5. 20.3.2.2.5 Data Output Source
      3. 20.3.3 SMPH
        1. 20.3.3.1 Introduction
        2. 20.3.3.2 Functional Description
        3. 20.3.3.3 Semaphore Allocation in TI Software
      4. 20.3.4 Time-to-Digital Converter (TDC)
        1. 20.3.4.1 Introduction
        2. 20.3.4.2 Functional Description
          1. 20.3.4.2.1 Command
          2. 20.3.4.2.2 Conversion Time Configuration
          3. 20.3.4.2.3 Status and Result
          4. 20.3.4.2.4 Clock Source Selection
            1. 20.3.4.2.4.1 Counter Clock
            2. 20.3.4.2.4.2 Reference Clock
          5. 20.3.4.2.5 Start and Stop Events
          6. 20.3.4.2.6 Prescaler
        3. 20.3.4.3 Supported Measurement Types
          1. 20.3.4.3.1 Measure Pulse Width
          2. 20.3.4.3.2 Measure Frequency
          3. 20.3.4.3.3 Measure Time Between Edges of Different Events Sources
            1. 20.3.4.3.3.1 Asynchronous Counter Start – Ignore 0 Stop Events
            2. 20.3.4.3.3.2 Synchronous Counter Start – Ignore 0 Stop Events
            3. 20.3.4.3.3.3 Asynchronous Counter Start – Ignore Stop Events
            4. 20.3.4.3.3.4 Synchronous Counter Start – Ignore Stop Events
          4. 20.3.4.3.4 Pulse Counting
      5. 20.3.5 Timer01
        1. 20.3.5.1 Introduction
        2. 20.3.5.2 Functional Description
    4. 20.4 Analog Peripheral Modules
      1. 20.4.1 Overview
        1. 20.4.1.1 ADI Control-Configuration
        2. 20.4.1.2 Block Diagram
      2. 20.4.2 Analog-to-Digital Converter (ADC)
        1. 20.4.2.1 Introduction
        2. 20.4.2.2 Functional Description
          1. 20.4.2.2.1 Input Selection and Scaling
          2. 20.4.2.2.2 Reference Selection
          3. 20.4.2.2.3 ADC Sample Mode
          4. 20.4.2.2.4 ADC Clock Source
          5. 20.4.2.2.5 ADC Trigger
          6. 20.4.2.2.6 Sample FIFO
          7. 20.4.2.2.7 µDMA Interface
          8. 20.4.2.2.8 Resource Ownership and Usage
      3. 20.4.3 COMPA
        1. 20.4.3.1 Introduction
        2. 20.4.3.2 Functional Description
          1. 20.4.3.2.1 Input Selection
          2. 20.4.3.2.2 Reference Selection
          3. 20.4.3.2.3 LPM Bias and COMPA Enable
          4. 20.4.3.2.4 Resource Ownership and Usage
      4. 20.4.4 COMPB
        1. 20.4.4.1 Introduction
        2. 20.4.4.2 Functional Description
          1. 20.4.4.2.1 Input Selection
          2. 20.4.4.2.2 Reference Selection
          3. 20.4.4.2.3 Resource Ownership and Usage
            1. 20.4.4.2.3.1 System CPU Wakeup
      5. 20.4.5 Reference DAC
        1. 20.4.5.1 Introduction
        2. 20.4.5.2 Functional Description
          1. 20.4.5.2.1 Reference Selection
          2. 20.4.5.2.2 Output Voltage Control and Range
          3. 20.4.5.2.3 Sample Clock
            1. 20.4.5.2.3.1 Automatic Phase Control
            2. 20.4.5.2.3.2 Manual Phase Control
            3. 20.4.5.2.3.3 Operational Mode Dependency
          4. 20.4.5.2.4 Output Selection
            1. 20.4.5.2.4.1 Buffer
            2. 20.4.5.2.4.2 External Load
            3. 20.4.5.2.4.3 COMPA_REF
            4. 20.4.5.2.4.4 COMPB_REF
          5. 20.4.5.2.5 LPM Bias
          6. 20.4.5.2.6 Resource Ownership and Usage
      6. 20.4.6 ISRC
        1. 20.4.6.1 Introduction
        2. 20.4.6.2 Functional Description
          1. 20.4.6.2.1 Programmable Current
          2. 20.4.6.2.2 Voltage Reference
          3. 20.4.6.2.3 ISRC Enable
          4. 20.4.6.2.4 Temperature Dependency
          5. 20.4.6.2.5 Resource Ownership and Usage
    5. 20.5 Event Routing and Usage
      1. 20.5.1 AUX Event Bus
        1. 20.5.1.1 Event Signals
        2. 20.5.1.2 Event Subscribers
          1. 20.5.1.2.1 Event Detection
            1. 20.5.1.2.1.1 Detection of Asynchronous Events
            2. 20.5.1.2.1.2 Detection of Synchronous Events
      2. 20.5.2 Event Observation on External Pin
      3. 20.5.3 Events From MCU Domain
      4. 20.5.4 Events to MCU Domain
      5. 20.5.5 Events From AON Domain
      6. 20.5.6 Events to AON Domain
      7. 20.5.7 µDMA Interface
    6. 20.6 AUX Domain Peripheral Registers
      1. 20.6.1 ADI_4_AUX Registers
      2. 20.6.2 AUX_AIODIO Registers
      3. 20.6.3 AUX_EVCTL Registers
      4. 20.6.4 AUX_SMPH Registers
      5. 20.6.5 AUX_TDC Registers
      6. 20.6.6 AUX_TIMER01 Registers
      7. 20.6.7 AUX_ANAIF Registers
      8. 20.6.8 AUX_SYSIF Registers
  21. 21Battery Monitor and Temperature Sensor (BATMON)
    1. 21.1 Introduction
    2. 21.2 Functional Description
    3. 21.3 BATMON Registers
      1. 21.3.1 AON_BATMON Registers
  22. 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 DMA
    6. 22.6 Initialization and Configuration
    7. 22.7 UART Registers
      1. 22.7.1 UART Registers
  23. 23Synchronous Serial Interface (SSI)
    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
        2. 23.4.2.2 Receive FIFO
      3. 23.4.3 Interrupts
      4. 23.4.4 Frame Formats
        1. 23.4.4.1 Texas Instruments Synchronous Serial Frame Format
        2. 23.4.4.2 Motorola SPI Frame Format
          1. 23.4.4.2.1 SPO Clock Polarity Bit
          2. 23.4.4.2.2 SPH Phase-Control Bit
        3. 23.4.4.3 Motorola SPI Frame Format With SPO = 0 and SPH = 0
        4. 23.4.4.4 Motorola SPI Frame Format With SPO = 0 and SPH = 1
        5. 23.4.4.5 Motorola SPI Frame Format With SPO = 1 and SPH = 0
        6. 23.4.4.6 Motorola SPI Frame Format With SPO = 1 and SPH = 1
        7. 23.4.4.7 MICROWIRE Frame Format
    5. 23.5 DMA Operation
    6. 23.6 Initialization and Configuration
    7. 23.7 SSI Registers
      1. 23.7.1 SSI Registers
  24. 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
      1. 24.5.1 I2C Registers
  25. 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
      1. 25.9.1 I2S Registers
  26. 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_UPDATE_FS: Set New Synthesizer Frequency Without Recalibration (Depricated)
          19. 26.3.3.2.19 CMD_MODIFY_FS: Set New Synthesizer Frequency Without Recalibration
          20. 26.3.3.2.20 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 Nonconnectable 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
        1.       Revision History

20.6.1 ADI_4_AUX Registers

#ADI_4_AUX_ADI_4_AUX_MMAP1_TABLE_1 lists the memory-mapped registers for the ADI_4_AUX registers. All register offset addresses not listed in #ADI_4_AUX_ADI_4_AUX_MMAP1_TABLE_1 should be considered as reserved locations and the register contents should not be modified.

Table 20-22 ADI_4_AUX Registers
OffsetAcronymRegister NameSection
0hMUX0Internal#ADI_4_AUX_ADI_4_AUX_MMAP1_ADI_4_AUX_ALL_MUX0
1hMUX1Internal#ADI_4_AUX_ADI_4_AUX_MMAP1_ADI_4_AUX_ALL_MUX1
2hMUX2Internal#ADI_4_AUX_ADI_4_AUX_MMAP1_ADI_4_AUX_ALL_MUX2
3hMUX3Internal#ADI_4_AUX_ADI_4_AUX_MMAP1_ADI_4_AUX_ALL_MUX3
4hISRCCurrent Source#ADI_4_AUX_ADI_4_AUX_MMAP1_ADI_4_AUX_ALL_ISRC
5hCOMPComparator#ADI_4_AUX_ADI_4_AUX_MMAP1_ADI_4_AUX_ALL_COMP
7hMUX4Internal#ADI_4_AUX_ADI_4_AUX_MMAP1_ADI_4_AUX_ALL_MUX4
8hADC0ADC Control 0#ADI_4_AUX_ADI_4_AUX_MMAP1_ADI_4_AUX_ALL_ADC0
9hADC1ADC Control 1#ADI_4_AUX_ADI_4_AUX_MMAP1_ADI_4_AUX_ALL_ADC1
AhADCREF0ADC Reference 0#ADI_4_AUX_ADI_4_AUX_MMAP1_ADI_4_AUX_ALL_ADCREF0
BhADCREF1ADC Reference 1#ADI_4_AUX_ADI_4_AUX_MMAP1_ADI_4_AUX_ALL_ADCREF1
EhLPMBIASInternal#ADI_4_AUX_ADI_4_AUX_MMAP1_ADI_4_AUX_ALL_LPMBIAS

Complex bit access types are encoded to fit into small table cells. #ADI_4_AUX_ADI_4_AUX_MMAP1_LEGEND shows the codes that are used for access types in this section.

Table 20-23 ADI_4_AUX Access Type Codes
Access TypeCodeDescription
Read Type
RRRead
Write Type
WWWrite
Reset or Default Value
-nValue after reset or the default value

20.6.1.1 MUX0 Register (Offset = 0h) [Reset = 00h]

MUX0 is shown in #ADI_4_AUX_ADI_4_AUX_MMAP1_ADI_4_AUX_ALL_MUX0_FIGURE and described in #ADI_4_AUX_ADI_4_AUX_MMAP1_ADI_4_AUX_ALL_MUX0_TABLE.

Return to the Summary Table.

Internal. Only to be used through TI provided API.

Figure 20-21 MUX0 Register
76543210
RESERVEDADCCOMPB_INRESERVEDCOMPA_REF
R-0hR/W-0hR-0hR/W-0h
Table 20-24 MUX0 Register Field Descriptions
BitFieldTypeResetDescription
7RESERVEDR0hReserved
6ADCCOMPB_INR/W0hInternal. Only to be used through TI provided API.
5-4RESERVEDR0hReserved
3-0COMPA_REFR/W0hInternal. Only to be used through TI provided API.

20.6.1.2 MUX1 Register (Offset = 1h) [Reset = 00h]

MUX1 is shown in #ADI_4_AUX_ADI_4_AUX_MMAP1_ADI_4_AUX_ALL_MUX1_FIGURE and described in #ADI_4_AUX_ADI_4_AUX_MMAP1_ADI_4_AUX_ALL_MUX1_TABLE.

Return to the Summary Table.

Internal. Only to be used through TI provided API.

Figure 20-22 MUX1 Register
76543210
COMPA_IN
R/W-0h
Table 20-25 MUX1 Register Field Descriptions
BitFieldTypeResetDescription
7-0COMPA_INR/W0hInternal. Only to be used through TI provided API.

20.6.1.3 MUX2 Register (Offset = 2h) [Reset = 00h]

MUX2 is shown in #ADI_4_AUX_ADI_4_AUX_MMAP1_ADI_4_AUX_ALL_MUX2_FIGURE and described in #ADI_4_AUX_ADI_4_AUX_MMAP1_ADI_4_AUX_ALL_MUX2_TABLE.

Return to the Summary Table.

Internal. Only to be used through TI provided API.

Figure 20-23 MUX2 Register
76543210
ADCCOMPB_INDAC_VREF_SEL
R/W-0hR/W-0h
Table 20-26 MUX2 Register Field Descriptions
BitFieldTypeResetDescription
7-3ADCCOMPB_INR/W0hInternal. Only to be used through TI provided API.
2-0DAC_VREF_SELR/W0hInternal. Only to be used through TI provided API.

20.6.1.4 MUX3 Register (Offset = 3h) [Reset = 00h]

MUX3 is shown in #ADI_4_AUX_ADI_4_AUX_MMAP1_ADI_4_AUX_ALL_MUX3_FIGURE and described in #ADI_4_AUX_ADI_4_AUX_MMAP1_ADI_4_AUX_ALL_MUX3_TABLE.

Return to the Summary Table.

Internal. Only to be used through TI provided API.

Figure 20-24 MUX3 Register
76543210
ADCCOMPB_IN
R/W-0h
Table 20-27 MUX3 Register Field Descriptions
BitFieldTypeResetDescription
7-0ADCCOMPB_INR/W0hInternal. Only to be used through TI provided API.

20.6.1.5 ISRC Register (Offset = 4h) [Reset = 00h]

ISRC is shown in #ADI_4_AUX_ADI_4_AUX_MMAP1_ADI_4_AUX_ALL_ISRC_FIGURE and described in #ADI_4_AUX_ADI_4_AUX_MMAP1_ADI_4_AUX_ALL_ISRC_TABLE.

Return to the Summary Table.

Current Source
Strength and trim control for current source. Only to be used through TI provided API.

Figure 20-25 ISRC Register
76543210
TRIMRESERVEDEN
R/W-0hR-0hR/W-0h
Table 20-28 ISRC Register Field Descriptions
BitFieldTypeResetDescription
7-2TRIMR/W0hAdjust current from current source.
Output currents may be combined to get desired total current.
0h = No current connected
1h = 0P25U : 0.25 uA
2h = 0P5U : 0.5 uA
4h = 1P0U : 1.0 uA
8h = 2P0U : 2.0 uA
10h = 4P5U : 4.5 uA
20h = 11P75U : 11.75 uA
1RESERVEDR0hReserved
0ENR/W0hCurrent source enable

20.6.1.6 COMP Register (Offset = 5h) [Reset = 00h]

COMP is shown in #ADI_4_AUX_ADI_4_AUX_MMAP1_ADI_4_AUX_ALL_COMP_FIGURE and described in #ADI_4_AUX_ADI_4_AUX_MMAP1_ADI_4_AUX_ALL_COMP_TABLE.

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Comparator
Control COMPA and COMPB comparators. Only to be used through TI provided API.

Figure 20-26 COMP Register
76543210
COMPA_REF_RES_ENCOMPA_REF_CURR_ENLPM_BIAS_WIDTH_TRIMCOMPB_ENRESERVEDCOMPA_EN
R/W-0hR/W-0hR/W-0hR/W-0hR-0hR/W-0h
Table 20-29 COMP Register Field Descriptions
BitFieldTypeResetDescription
7COMPA_REF_RES_ENR/W0hEnables 400kΩ resistance from COMPA reference node to ground. Used with COMPA_REF_CURR_EN to generate voltage reference for cap-sense.
6COMPA_REF_CURR_ENR/W0hEnables 2uA IPTAT current from ISRC to COMPA reference node. Requires ISRC.EN = 1. Used with COMPA_REF_RES_EN to generate voltage reference for cap-sense.
5-3LPM_BIAS_WIDTH_TRIMR/W0hInternal. Only to be used through TI provided API.
2COMPB_ENR/W0hCOMPB enable
1RESERVEDR0hReserved
0COMPA_ENR/W0hCOMPA enable

20.6.1.7 MUX4 Register (Offset = 7h) [Reset = 00h]

MUX4 is shown in #ADI_4_AUX_ADI_4_AUX_MMAP1_ADI_4_AUX_ALL_MUX4_FIGURE and described in #ADI_4_AUX_ADI_4_AUX_MMAP1_ADI_4_AUX_ALL_MUX4_TABLE.

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Internal. Only to be used through TI provided API.

Figure 20-27 MUX4 Register
76543210
COMPA_REF
R/W-0h
Table 20-30 MUX4 Register Field Descriptions
BitFieldTypeResetDescription
7-0COMPA_REFR/W0hInternal. Only to be used through TI provided API.

20.6.1.8 ADC0 Register (Offset = 8h) [Reset = 00h]

ADC0 is shown in #ADI_4_AUX_ADI_4_AUX_MMAP1_ADI_4_AUX_ALL_ADC0_FIGURE and described in #ADI_4_AUX_ADI_4_AUX_MMAP1_ADI_4_AUX_ALL_ADC0_TABLE.

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ADC Control 0
ADC Sample Control. Only to be used through TI provided API.

Figure 20-28 ADC0 Register
76543210
SMPL_MODESMPL_CYCLE_EXPRESERVEDRESET_NEN
R/W-0hR/W-0hR-0hR/W-0hR/W-0h
Table 20-31 ADC0 Register Field Descriptions
BitFieldTypeResetDescription
7SMPL_MODER/W0hADC Sampling mode:
0: Synchronous mode
1: Asynchronous mode
The ADC does a sample-and-hold before conversion. In synchronous mode the sampling starts when the ADC clock detects a rising edge on the trigger signal. Jitter/uncertainty will be inferred in the detection if the trigger signal originates from a domain that is asynchronous to the ADC clock. SMPL_CYCLE_EXP determines the the duration of sampling.
Conversion starts immediately after sampling ends.
In asynchronous mode the sampling is continuous when enabled. Sampling ends and conversion starts immediately with the rising edge of the trigger signal. Sampling restarts when the conversion has finished.
Asynchronous mode is useful when it is important to avoid jitter in the sampling instant of an externally driven signal
6-3SMPL_CYCLE_EXPR/W0hControls the sampling duration before conversion when the ADC is operated in synchronous mode (SMPL_MODE = 0). The setting has no effect in asynchronous mode. The sampling duration is given as 2SMPL_CYCLE_EXP + 1 / 6 us.
3h = 2P7_US : 16x 6 MHz clock periods = 2.7us
4h = 5P3_US : 32x 6 MHz clock periods = 5.3us
5h = 10P6_US : 64x 6 MHz clock periods = 10.6us
6h = 21P3_US : 128x 6 MHz clock periods = 21.3us
7h = 42P6_US : 256x 6 MHz clock periods = 42.6us
8h = 85P3_US : 512x 6 MHz clock periods = 85.3us
9h = 170_US : 1024x 6 MHz clock periods = 170us
Ah = 341_US : 2048x 6 MHz clock periods = 341us
Bh = 682_US : 4096x 6 MHz clock periods = 682us
Ch = 1P37_MS : 8192x 6 MHz clock periods = 1.37ms
Dh = 2P73_MS : 16384x 6 MHz clock periods = 2.73ms
Eh = 5P46_MS : 32768x 6 MHz clock periods = 5.46ms
Fh = 10P9_MS : 65536x 6 MHz clock periods = 10.9ms
2RESERVEDR0hReserved
1RESET_NR/W0hReset ADC digital subchip, active low. ADC must be reset every time it is reconfigured.
0: Reset
1: Normal operation
0ENR/W0hADC Enable
0: Disable
1: Enable

20.6.1.9 ADC1 Register (Offset = 9h) [Reset = 00h]

ADC1 is shown in #ADI_4_AUX_ADI_4_AUX_MMAP1_ADI_4_AUX_ALL_ADC1_FIGURE and described in #ADI_4_AUX_ADI_4_AUX_MMAP1_ADI_4_AUX_ALL_ADC1_TABLE.

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ADC Control 1
ADC Comparator Control. Only to be used through TI provided API.

Figure 20-29 ADC1 Register
76543210
RESERVEDSCALE_DIS
R-0hR/W-0h
Table 20-32 ADC1 Register Field Descriptions
BitFieldTypeResetDescription
7-1RESERVEDR0hReserved
0SCALE_DISR/W0hInternal. Only to be used through TI provided API.

20.6.1.10 ADCREF0 Register (Offset = Ah) [Reset = 00h]

ADCREF0 is shown in #ADI_4_AUX_ADI_4_AUX_MMAP1_ADI_4_AUX_ALL_ADCREF0_FIGURE and described in #ADI_4_AUX_ADI_4_AUX_MMAP1_ADI_4_AUX_ALL_ADCREF0_TABLE.

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ADC Reference 0
Control reference used by the ADC. Only to be used through TI provided API.

Figure 20-30 ADCREF0 Register
76543210
RESERVEDREF_ON_IDLEIOMUXEXTSRCRESERVEDEN
R-0hR/W-0hR/W-0hR/W-0hR/W-0hR-0hR/W-0h
Table 20-33 ADCREF0 Register Field Descriptions
BitFieldTypeResetDescription
7RESERVEDR0hReserved
6REF_ON_IDLER/W0hEnable ADCREF in IDLE state.
0: Disabled in IDLE state
1: Enabled in IDLE state
Keep ADCREF enabled when ADC0.SMPL_MODE = 0.
Recommendation: Enable ADCREF always when ADC0.SMPL_CYCLE_EXP is less than 0x6 (21.3us sampling time).
5IOMUXR/W0hInternal. Only to be used through TI provided API.
4EXTR/W0hInternal. Only to be used through TI provided API.
3SRCR/W0hADC reference source:
0: Fixed reference = 4.3V
1: Relative reference = VDDS
2-1RESERVEDR0hReserved
0ENR/W0hADC reference module enable:
0: ADC reference module powered down
1: ADC reference module enabled

20.6.1.11 ADCREF1 Register (Offset = Bh) [Reset = 00h]

ADCREF1 is shown in #ADI_4_AUX_ADI_4_AUX_MMAP1_ADI_4_AUX_ALL_ADCREF1_FIGURE and described in #ADI_4_AUX_ADI_4_AUX_MMAP1_ADI_4_AUX_ALL_ADCREF1_TABLE.

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ADC Reference 1
Control reference used by the ADC. Only to be used through TI provided API.

Figure 20-31 ADCREF1 Register
76543210
RESERVEDVTRIM
R-0hR/W-0h
Table 20-34 ADCREF1 Register Field Descriptions
BitFieldTypeResetDescription
7-6RESERVEDR0hReserved
5-0VTRIMR/W0hTrim output voltage of ADC fixed reference (64 steps, 2's complement). Applies only for ADCREF0.SRC = 0.
Examples:
0x00 - nominal voltage 1.43V
0x01 - nominal + 0.4% 1.435V
0x3F - nominal - 0.4% 1.425V
0x1F - maximum voltage 1.6V
0x20 - minimum voltage 1.3V

20.6.1.12 LPMBIAS Register (Offset = Eh) [Reset = 00h]

LPMBIAS is shown in #ADI_4_AUX_ADI_4_AUX_MMAP1_ADI_4_AUX_ALL_LPMBIAS_FIGURE and described in #ADI_4_AUX_ADI_4_AUX_MMAP1_ADI_4_AUX_ALL_LPMBIAS_TABLE.

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Internal. Only to be used through TI provided API.

Figure 20-32 LPMBIAS Register
76543210
RESERVEDLPM_TRIM_IOUT
R-0hR/W-0h
Table 20-35 LPMBIAS Register Field Descriptions
BitFieldTypeResetDescription
7-6RESERVEDR0hReserved
5-0LPM_TRIM_IOUTR/W0hInternal. Only to be used through TI provided API.