SWRU543B January   2019  – June 2025 CC3230S , CC3230SF , CC3235MODS , CC3235MODSF , CC3235S , CC3235SF

 

  1.   1
  2.   Read This First
    1.     Audience
    2.     About This Manual
    3.     Register Bit Conventions
    4.     Glossary
    5.     Related Documentation
    6.     Community Resources
    7.     Trademarks
  3. 1 Architecture Overview
    1. 1.1 Introduction
    2. 1.2 Architecture Overview
    3. 1.3 Functional Overview
      1. 1.3.1  Processor Core
        1. 1.3.1.1 Arm® Cortex®-M4 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
      2. 1.3.2  Memory
        1. 1.3.2.1 On-Chip SRAM
        2. 1.3.2.2 ROM
        3. 1.3.2.3 Flash Memory
      3. 1.3.3  Micro-Direct Memory Access Controller (µDMA)
      4. 1.3.4  General-Purpose Timer (GPT)
      5. 1.3.5  Watchdog Timer (WDT)
      6. 1.3.6  Multichannel Audio Serial Port (McASP)
      7. 1.3.7  Serial Peripheral Interface (SPI)
      8. 1.3.8  Inter-Integrated Circuit (I2C) Interface
      9. 1.3.9  Universal Asynchronous Receiver/Transmitter (UART)
      10. 1.3.10 General-Purpose Input/Output (GPIO)
      11. 1.3.11 Analog-to-Digital Converter (ADC)
      12. 1.3.12 SD Card Host
      13. 1.3.13 Parallel Camera Interface
      14. 1.3.14 Debug Interface
      15. 1.3.15 Hardware Cryptography Accelerator
      16. 1.3.16 Clock, Reset, and Power Management
      17. 1.3.17 SimpleLink™ Subsystem
      18. 1.3.18 I/O Pads and Pin Multiplexing
  4. 2 Cortex®-M4 Processor
    1. 2.1 Overview
      1. 2.1.1 Block Diagram
      2. 2.1.2 System-Level Interface
      3. 2.1.3 Integrated Configurable Debug
      4. 2.1.4 Trace Port Interface Unit (TPIU)
      5. 2.1.5 Cortex®-M4 System Component Details
    2. 2.2 Functional Description
      1. 2.2.1 Programming Model
        1. 2.2.1.1 Processor Mode and Privilege Levels for Software Execution
        2. 2.2.1.2 Stacks
      2. 2.2.2 Register Description
        1. 2.2.2.1 Register Map
        2. 2.2.2.2 Register Descriptions
          1. 2.2.2.2.1 Stack Pointer (SP)
          2. 2.2.2.2.2 Link Register (LR)
          3. 2.2.2.2.3 Program Counter (PC)
          4. 2.2.2.2.4 Program Status Register (PSR)
          5. 2.2.2.2.5 Priority Mask Register (PRIMASK)
          6. 2.2.2.2.6 Fault Mask Register (FAULTMASK)
          7. 2.2.2.2.7 Base Priority Mask Register (BASEPRI)
          8. 2.2.2.2.8 Control Register (CONTROL)
        3. 2.2.2.3 Exceptions and Interrupts
        4. 2.2.2.4 Data Types
      3. 2.2.3 Memory Model
        1. 2.2.3.1 Bit-Banding
          1. 2.2.3.1.1 Directly Accessing an Alias Region
          2. 2.2.3.1.2 Directly Accessing a Bit-Band Region
        2. 2.2.3.2 Data Storage
        3. 2.2.3.3 Synchronization Primitives
      4. 2.2.4 Exception Model
        1. 2.2.4.1 Exception States
        2. 2.2.4.2 Exception Types
        3. 2.2.4.3 Exception Handlers
        4. 2.2.4.4 Vector Table
        5. 2.2.4.5 Exception Priorities
        6. 2.2.4.6 Interrupt Priority Grouping
        7. 2.2.4.7 Exception Entry and Return
          1. 2.2.4.7.1 Exception Entry
      5. 2.2.5 Fault Handling
        1. 2.2.5.1 Fault Types
        2. 2.2.5.2 Fault Escalation and Hard Faults
        3. 2.2.5.3 Fault Status Registers and Fault Address Registers
        4. 2.2.5.4 Lockup State
      6. 2.2.6 Power Management
      7. 2.2.7 Instruction Set Summary
  5. 3 Cortex®-M4 Peripherals
    1. 3.1 Overview
    2. 3.2 Functional Description
      1. 3.2.1 System Timer (SysTick)
      2. 3.2.2 Nested Vectored Interrupt Controller (NVIC)
        1. 3.2.2.1 Level-Sensitive and Pulse Interrupts
        2. 3.2.2.2 Hardware and Software Control of Interrupts
      3. 3.2.3 System Control Block (SCB)
    3. 3.3 Register Map
      1. 3.3.1 Cortex Registers
  6. 4 Direct Memory Access (DMA)
    1. 4.1 Overview
    2. 4.2 Functional Description
      1. 4.2.1 Channel Assignment
      2. 4.2.2 Priority
      3. 4.2.3 Arbitration Size
      4. 4.2.4 Channel Configuration
      5. 4.2.5 Transfer Mode
        1. 4.2.5.1 Stop Mode
        2. 4.2.5.2 Basic Mode
        3. 4.2.5.3 Auto Mode
        4. 4.2.5.4 Ping-Pong Mode
        5. 4.2.5.5 Memory Scatter-Gather Mode
        6. 4.2.5.6 Peripheral Scatter-Gather Mode
      6. 4.2.6 Transfer Size and Increment
      7. 4.2.7 Peripheral Interface
        1. 4.2.7.1 FIFO Peripherals
        2. 4.2.7.2 Trigger Peripherals
        3. 4.2.7.3 Software Request
      8. 4.2.8 Interrupts and Errors
    3. 4.3 Register Description
      1. 4.3.1 DMA Register Map
      2. 4.3.2 µDMA Channel Control Structure
      3. 4.3.3 DMA Registers
      4. 4.3.4 DMA_(OFFSET_FROM_DMA_BASE_ADDRESS) Registers
  7. 5 General-Purpose Input/Outputs (GPIOs)
    1. 5.1 Overview
    2. 5.2 Functional Description
      1. 5.2.1 Data Control
        1. 5.2.1.1 Data Direction Operation
        2. 5.2.1.2 Data Register Operation
    3. 5.3 Interrupt Control
      1. 5.3.1 µDMA Trigger Source
    4. 5.4 Initialization and Configuration
    5. 5.5 GPIO Registers
  8. 6 Universal Asynchronous Receivers/Transmitters (UARTs)
    1. 6.1 Overview
      1. 6.1.1 Block Diagram
    2. 6.2 Functional Description
      1. 6.2.1 Transmit and Receive Logic
      2. 6.2.2 Baud-Rate Generation
      3. 6.2.3 Data Transmission
        1. 6.2.3.1 Flow Control
          1. 6.2.3.1.1 Hardware Flow Control (RTS/CTS)
          2. 6.2.3.1.2 Software Flow Control (Modem Status Interrupts)
        2. 6.2.3.2 FIFO Operation
        3. 6.2.3.3 Interrupts
        4. 6.2.3.4 LoopbackOperation
        5. 6.2.3.5 DMA Operation
      4. 6.2.4 Initialization and Configuration
    3. 6.3 UART Registers
  9. 7 Inter-Integrated Circuit (I2C) Interface
    1. 7.1 Overview
      1. 7.1.1 Block Diagram
      2. 7.1.2 Signal Description
    2. 7.2 Functional Description
      1. 7.2.1 I2C Bus Functional Overview
        1. 7.2.1.1 START and STOP Conditions
        2. 7.2.1.2 Data Format With 7-Bit Address
        3. 7.2.1.3 Data Validity
        4. 7.2.1.4 Acknowledge
        5. 7.2.1.5 Repeated Start
        6. 7.2.1.6 Clock Low Time-out (CLTO)
        7. 7.2.1.7 Dual Address
        8. 7.2.1.8 Arbitration
      2. 7.2.2 Supported Speed Modes
        1. 7.2.2.1 Standard and Fast Modes
      3. 7.2.3 Interrupts
      4. 7.2.4 Loopback Operation
      5. 7.2.5 FIFO and µDMA Operation
        1. 7.2.5.1 Master Module Burst Mode
          1. 7.2.5.1.1 Master Module µDMA Functionality
          2. 7.2.5.1.2 Slave Module
      6. 7.2.6 Command Sequence Flow Charts
        1. 7.2.6.1 I2C Master Command Sequences
        2. 7.2.6.2 I2C Slave Command Sequences
      7. 7.2.7 Initialization and Configuration
    3. 7.3 I2C Registers
  10. 8 SPI (Serial Peripheral Interface)
    1. 8.1 Overview
      1. 8.1.1 Features
    2. 8.2 Functional Description
      1. 8.2.1 SPI
      2. 8.2.2 SPI Transmission
        1. 8.2.2.1 Two Data Pins Interface Mode
        2. 8.2.2.2 Transfer Formats
          1. 8.2.2.2.1 Programmable Word Length
          2. 8.2.2.2.2 Programmable SPI Enable (SPIEN)
          3. 8.2.2.2.3 Programmable SPI Clock (SPICLK)
          4. 8.2.2.2.4 Bit Rate
          5. 8.2.2.2.5 Polarity and Phase
            1. 8.2.2.2.5.1 Transfer Format With PHA = 0
            2. 8.2.2.2.5.2 Transfer Format With PHA = 1
      3. 8.2.3 Master Mode
        1. 8.2.3.1 Interrupt Events in Master Mode
          1. 8.2.3.1.1 TX_empty
          2. 8.2.3.1.2 TX_underflow
          3. 8.2.3.1.3 RX_ full
          4. 8.2.3.1.4 End-of-Word Count
        2. 8.2.3.2 Master Transmit and Receive Mode
        3. 8.2.3.3 SPI Enable Control in Master Mode
          1. 8.2.3.3.1 Keep SPIEN Active Mode (Force SPIEN)
        4. 8.2.3.4 Clock Ratio Granularity
          1. 8.2.3.4.1 FIFO Buffer Management
            1. 8.2.3.4.1.1 Split FIFO
            2. 8.2.3.4.1.2 Buffer Almost Full
            3. 8.2.3.4.1.3 Buffer Almost Empty
            4. 8.2.3.4.1.4 End of Transfer Management
            5. 8.2.3.4.1.5 3- or 4-Pin Mode
      4. 8.2.4 Slave Mode
        1. 8.2.4.1 Interrupts Events in Slave Mode
          1. 8.2.4.1.1 TX_empty
          2. 8.2.4.1.2 TX_underflow
          3. 8.2.4.1.3 RX_ full
          4. 8.2.4.1.4 RX_overflow
          5. 8.2.4.1.5 End-of-Word Count
        2. 8.2.4.2 Slave Transmit and Receive Mode
      5. 8.2.5 Interrupts
        1. 8.2.5.1 Interrupt-Driven Operation
        2. 8.2.5.2 Polling
      6. 8.2.6 DMA Requests
        1. 8.2.6.1 FIFO Buffer Enabled
      7. 8.2.7 Reset
    3. 8.3 Initialization and Configuration
      1. 8.3.1 Basic Initialization
      2. 8.3.2 Master Mode Operation Without Interrupt (Polling)
      3. 8.3.3 Slave Mode Operation With Interrupt
      4. 8.3.4 Generic Interrupt Handler Implementation
    4. 8.4 Access to Data Registers
    5. 8.5 Module Initialization
      1. 8.5.1 Common Transfer Sequence
      2. 8.5.2 End-of-Transfer Sequences
      3. 8.5.3 FIFO Mode
        1. 8.5.3.1 Common Transfer Sequence
        2. 8.5.3.2 Transmit Receive With Word Count
        3. 8.5.3.3 Transmit Receive Without Word Count
    6. 8.6 SPI Registers
  11. 9 General-Purpose Timers
    1. 9.1 Overview
    2. 9.2 Block Diagram
    3. 9.3 Functional Description
      1. 9.3.1 GPTM Reset Conditions
      2. 9.3.2 Timer Modes
        1. 9.3.2.1 One-Shot or Periodic Timer Mode
        2. 9.3.2.2 Input Edge-Count Mode
        3. 9.3.2.3 Input Edge-Time Mode
        4. 9.3.2.4 PWM Mode
      3. 9.3.3 DMA Operation
      4. 9.3.4 Accessing Concatenated 16/32-Bit GPTM Register Values
    4. 9.4 Initialization and Configuration
      1. 9.4.1 One-Shot and Periodic Timer Mode
      2. 9.4.2 Input Edge-Count Mode
      3. 9.4.3 Input Edge-Time Mode
      4. 9.4.4 PWM Mode
    5. 9.5 Timer Registers
  12. 10Watchdog Timer
    1. 10.1 Overview
      1. 10.1.1 Block Diagram
    2. 10.2 Functional Description
      1. 10.2.1 Initialization and Configuration
    3. 10.3 WATCHDOG Registers
    4. 10.4 MCU Watchdog Controller Usage Caveats
      1. 10.4.1 System Watchdog
      2. 10.4.2 System Watchdog Recovery Sequence
  13. 11SD Host Controller Interface
    1. 11.1 Overview
    2. 11.2 SD Host Features
    3. 11.3 1-Bit SD Interface
      1. 11.3.1 Clock and Reset Management
    4. 11.4 Initialization and Configuration Using Peripheral APIs
      1. 11.4.1 Basic Initialization and Configuration
      2. 11.4.2 Sending Command
      3. 11.4.3 Card Detection and Initialization
      4. 11.4.4 Block Read
      5. 11.4.5 Block Write
    5. 11.5 Performance and Testing
    6. 11.6 Peripheral Library APIs
    7. 11.7 SD-HOST Registers
  14. 12Inter-Integrated Sound (I2S) Multichannel Audio Serial Port
    1. 12.1 Overview
      1. 12.1.1 I2S Format
    2. 12.2 Functional Description
    3. 12.3 Programming Model
      1. 12.3.1 Clock and Reset Management
      2. 12.3.2 I2S Data Port Interface
      3. 12.3.3 Initialization and Configuration
    4. 12.4 Peripheral Library APIs for I2S Configuration
      1. 12.4.1 Basic APIs for Enabling and Configuring the Interface
        1. 12.4.1.1 void I2SDisable (unsigned long ulBase)
        2. 12.4.1.2 void I2SEnable (unsigned long ulBase, unsigned long ulMode)
        3. 12.4.1.3 void I2SSerializerConfig (unsigned long ulBase, unsigned long ulDataLine, unsigned long ulSerMode, unsigned long ulInActState)
        4. 12.4.1.4 void I2SConfigSetExpClk (unsigned long ulBase, unsigned long ulI2SClk, unsigned long ulBitClk, unsigned long ulConfig)
      2. 12.4.2 APIs for Data Access if DMA is Not Used
        1. 12.4.2.1 void I2SDataGet (unsigned long ulBase, unsigned long ulDataLine, unsigned long * pulData)
        2. 12.4.2.2 long I2SDataGetNonBlocking (unsigned long ulBase, unsigned long ulDataLine, unsigned long * pulData)
        3. 12.4.2.3 void I2SDataPut (unsigned long ulBase, unsigned long ulDataLine, unsigned long ulData)
        4. 12.4.2.4 void I2SDataPut (unsigned long ulBase, unsigned long ulDataLine, unsigned long ulData)
      3. 12.4.3 APIs for Setting Up, Handling Interrupts, or Getting Status from I2S Peripheral
        1. 12.4.3.1 void I2SIntRegister (unsigned long ulBase, void(*)(void) pfnHandler)
        2. 12.4.3.2 void I2SIntEnable (unsigned long ulBase, unsigned long ulIntFlags)
        3. 12.4.3.3 void I2SIntDisable (unsigned long ulBase, unsigned long ulIntFlags)
        4. 12.4.3.4 unsigned long I2SIntStatus (unsigned long ulBase)
        5. 12.4.3.5 void I2SIntUnregister (unsigned long ulBase)
        6. 12.4.3.6 void I2SIntClear (unsigned long ulBase, unsigned long ulStatFlags)
        7. 12.4.3.7 Values that can be Passed to I2SIntEnable() and I2SIntDisable() as the ulIntFlags Parameter
        8. 12.4.3.8 Values that can be Passed to I2SIntClear() as the ulStatFlags Parameter and Returned from I2SIntStatus()
      4. 12.4.4 APIs to Control FIFO Structures Associated With I2S Peripheral
        1. 12.4.4.1 void I2SRxFIFODisable (unsigned long ulBase)
        2. 12.4.4.2 void I2SRxFIFOEnable (unsigned long ulBase, unsigned long ulRxLevel, unsigned long ulWordsPerTransfer)
        3. 12.4.4.3 unsigned long I2SRxFIFOStatusGet (unsigned long ulBase)
        4. 12.4.4.4 void I2STxFIFODisable (unsigned long ulBase)
        5. 12.4.4.5 void I2STxFIFOEnable (unsigned long ulBase, unsigned long ulTxLevel, unsigned long ulWordsPerTransfer)
        6. 12.4.4.6 unsigned long I2STxFIFOStatusGet (unsigned long ulBase)
    5. 12.5 I2S Registers
  15. 13Analog-to-Digital Converter (ADC)
    1. 13.1 Overview
    2. 13.2 Key Features
    3. 13.3 ADC Register Mapping
    4. 13.4 ADC_MODULE Registers
    5. 13.5 Initialization and Configuration
    6. 13.6 Peripheral Library APIs for ADC Operation
      1. 13.6.1 Overview
      2. 13.6.2 Configuring the ADC Channels
      3. 13.6.3 Basic APIs for Enabling and Configuring the Interface
        1. 13.6.3.1 void ADCEnable (unsigned long ulBase)
        2. 13.6.3.2 void ADCDisable (unsigned long ulBase)
        3. 13.6.3.3 void ADCChannelEnable (unsigned long ulBase, unsigned long ulChannel)
        4. 13.6.3.4 void ADCChannelDisable (unsigned long ulBase, unsigned long ulChannel)
      4. 13.6.4 APIs for Data Transfer [Direct Access to FIFO and DMA Setup]
        1. 13.6.4.1 unsigned char ADCFIFOLvlGet (unsigned long ulBase, unsigned long ulChannel)
        2. 13.6.4.2 unsigned long ADCFIFORead (unsigned long ulBase, unsigned long ulChannel)
        3. 13.6.4.3 void ADCDMAEnable (unsigned long ulBase, unsigned long ulChannel)
        4. 13.6.4.4 void ADCDMADisable (unsigned long ulBase, unsigned long ulChannel)
      5. 13.6.5 APIs for Interrupt Usage
        1. 13.6.5.1 void ADCIntEnable (unsigned long ulBase, unsigned long ulChannel, unsigned long ulIntFlags)
        2. 13.6.5.2 void ADCIntDisable (unsigned long ulBase, unsigned long ulChannel, unsigned long ulIntFlags)
        3. 13.6.5.3 void ADCIntRegister (unsigned long ulBase, unsigned long ulChannel, void(*)(void) pfnHandler)
        4. 13.6.5.4 void ADCIntUnregister (unsigned long ulBase, unsigned long ulChannel)
        5. 13.6.5.5 unsigned long ADCIntStatus (unsigned long ulBase, unsigned long ulChannel)
        6. 13.6.5.6 void ADCIntClear (unsigned long ulBase, unsigned long ulChannel, unsigned long ulIntFlags)
      6. 13.6.6 APIs for Setting Up ADC Timer for Time-Stamping the Samples
        1. 13.6.6.1 void ADCTimerConfig (unsigned long ulBase, unsigned long ulValue)
        2. 13.6.6.2 void ADCTimerDisable (unsigned long ulBase)
        3. 13.6.6.3 void ADCTimerEnable (unsigned long ulBase)
        4. 13.6.6.4 void ADCTimerReset (unsigned long ulBase)
        5. 13.6.6.5 unsigned long ADCTimerValueGet (unsigned long ulBase)
  16. 14Parallel Camera Interface Module
    1. 14.1 Overview
    2. 14.2 Image Sensor Interface
    3. 14.3 Functional Description
      1. 14.3.1 Modes of Operation
      2. 14.3.2 FIFO Buffer
      3. 14.3.3 Reset
      4. 14.3.4 Clock Generation
      5. 14.3.5 Interrupt Generation
      6. 14.3.6 DMA Interface
    4. 14.4 Programming Model
      1. 14.4.1 Camera Core Reset
      2. 14.4.2 Enable the Picture Acquisition
      3. 14.4.3 Disable the Picture Acquisition
    5. 14.5 Interrupt Handling
      1. 14.5.1 FIFO_OF_IRQ (FIFO Overflow)
      2. 14.5.2 FIFO_UF_IRQ (FIFO Underflow)
    6. 14.6 Camera Registers
    7. 14.7 Peripheral Library APIs
    8. 14.8 Developer’s Guide
      1. 14.8.1 Using Peripheral Driver APIs for Capturing an Image
      2. 14.8.2 Using Peripheral Driver APIs for Communicating With Image Sensors
  17. 15Power, Reset, and Clock Management
    1. 15.1 Overview
      1. 15.1.1 Power Management Unit (PMU)
      2. 15.1.2 VBAT Wide-Voltage Connection
      3. 15.1.3 Supply Brownout and Blackout
      4. 15.1.4 Application Processor Power Modes
    2. 15.2 Power Management Control Architecture
      1. 15.2.1 Global Power-Reset-Clock Manager (GPRCM)
      2. 15.2.2 Application Reset-Clock Manager (ARCM)
    3. 15.3 PRCM APIs
      1. 15.3.1  MCU Initialization
      2. 15.3.2  Reset Control
      3. 15.3.3  Peripheral Reset
      4. 15.3.4  Reset Cause
      5. 15.3.5  Clock Control
      6. 15.3.6  Low-Power Modes
      7. 15.3.7  Sleep (SLEEP)
      8. 15.3.8  Low-Power Deep Sleep (LPDS)
      9. 15.3.9  Hibernate (HIB)
      10. 15.3.10 Slow Clock Counter
    4. 15.4 Peripheral Macros
    5. 15.5 Power Management Framework
    6. 15.6 PRCM Registers
  18. 16I/O Pads and Pin Multiplexing
    1. 16.1 Overview
    2. 16.2 I/O Pad Electrical Specifications
    3. 16.3 Analog and Digital Pin Multiplexing
    4. 16.4 Special Analog/Digital Pins
      1. 16.4.1 Pins 45 and 52
      2. 16.4.2 Pins 29 and 30
      3. 16.4.3 Pins 57, 58, 59, and 60
    5. 16.5 Analog Mux Control Registers
    6. 16.6 Pins Available for Applications
    7. 16.7 Functional Pin Mux Configurations
    8. 16.8 Pin Mapping Recommendations
      1. 16.8.1 Pad Configuration Registers for Application Pins
        1. 16.8.1.1 Pad Mux and Electrical Configuration Register Bit Definitions
      2. 16.8.2 PAD Behavior During Reset and Hibernate
      3. 16.8.3 Control Architecture
      4. 16.8.4 CC32xx Pin-mux Examples
      5. 16.8.5 Wake on Pad
      6. 16.8.6 Sense on Power
  19. 17Advance Encryption Standard Accelerator (AES)
    1. 17.1 AES Overview
    2. 17.2 AES Functional Description
      1. 17.2.1 AES Block Diagram
        1. 17.2.1.1 Interfaces
        2. 17.2.1.2 AES Wide-Bus Engine
      2. 17.2.2 AES Algorithm
      3. 17.2.3 AES Operating Modes
        1. 17.2.3.1 Supported Modes of Operation
        2. 17.2.3.2 Extended and Combined Modes of Operations
      4. 17.2.4 Hardware Requests
    3. 17.3 AES Module Programming Guide
      1. 17.3.1 AES Low-Level Programming Models
        1. 17.3.1.1 Global Initialization
        2. 17.3.1.2 Initialization Subsequence
        3. 17.3.1.3 Operational Modes Configuration
        4. 17.3.1.4 AES Events Servicing
    4. 17.4 AES Registers
  20. 18Data Encryption Standard Accelerator (DES)
    1. 18.1 DES Functional Description
    2. 18.2 DES Block Diagram
      1. 18.2.1 µDMA Control
      2. 18.2.2 Interrupt Control
      3. 18.2.3 Register Interface
      4. 18.2.4 DES Enginer
        1. 18.2.4.1 Mode Control FSM
        2. 18.2.4.2 DES Feedback Mode Block
        3. 18.2.4.3 DES Cipher Core
    3. 18.3 DES-Supported Modes of Operation
      1. 18.3.1 ECB Feedback Mode
        1. 18.3.1.1 CBC Feedback Mode
        2. 18.3.1.2 CFB Feedback Mode
    4. 18.4 DES Module Programming Guide – Low-Level Programming Models
      1. 18.4.1 Surrounding Modules Global Initialization
        1. 18.4.1.1 Main Sequence – DES Global Initialization
        2. 18.4.1.2 Subsequence – Configure the DES Algorithm Type
        3. 18.4.1.3 Subsequence – Configure the 3DES Algorithm Type
      2. 18.4.2 Operational Modes Configuration
        1. 18.4.2.1 Main Sequence – DES Polling Mode
        2. 18.4.2.2 DES Interrupt Mode
        3. 18.4.2.3 DES Interrupt DMA Mode
      3. 18.4.3 DES Events Servicing
        1. 18.4.3.1 Interrupt Servicing
        2. 18.4.3.2 Context Input Event Servicing
    5. 18.5 DES Registers
  21. 19SHA/MD5 Accelerator
    1. 19.1 SHA/MD5 Functional Description
      1. 19.1.1 SHA/MD5 Block Diagram
        1. 19.1.1.1 Configuration Registers
        2. 19.1.1.2 Hash/HMAC Engine
        3. 19.1.1.3 Hash Core Control
        4. 19.1.1.4 Host Interface Bank
      2. 19.1.2 µDMA and Interrupt Requests
      3. 19.1.3 Operation Description
        1. 19.1.3.1 SHA Mode
          1. 19.1.3.1.1 Starting a New Hash
          2. 19.1.3.1.2 Outer Digest Registers
          3. 19.1.3.1.3 Inner Digest Registers
          4. 19.1.3.1.4 Closing a Hash
        2. 19.1.3.2 MD5 Mode
          1. 19.1.3.2.1 Starting a New Hash
          2. 19.1.3.2.2 Closing a Hash
        3. 19.1.3.3 Generating a Software Interrupt
      4. 19.1.4 SHA/MD5 Programming Guide
        1. 19.1.4.1 Global Initialization
          1. 19.1.4.1.1 Surrounding Modules Global Initialization
          2. 19.1.4.1.2 Starting a New HMAC using the SHA-1 Hash Function and HMAC Key Processing
          3. 19.1.4.1.3 Subsequence - Continuing a Prior HMAC Using the SHA-1 Hash Function
          4. 19.1.4.1.4 Subsequence - Hashing a Key Bigger than 512 Bits with the SHA-1 Hash Function
          5. 19.1.4.1.5 Operational Modes Configuration
          6. 19.1.4.1.6 SHA/MD5 Event Servicing
            1. 19.1.4.1.6.1 Interrupt Servicing
    2. 19.2 SHA-MD5 Registers
  22. 20Cyclical Redundancy Check (CRC)
    1. 20.1 Functional Description
      1. 20.1.1 CRC Support
        1. 20.1.1.1 CRC Checksum Engine
        2. 20.1.1.2 Data Size
        3. 20.1.1.3 Endian Configuration
    2. 20.2 Initialization and Configuration
      1. 20.2.1 CRC Initialization and Configuration
        1. 20.2.1.1 Data Endian Convention for the CRC Engine
    3. 20.3 CRC Registers
  23. 21On-Chip Parallel Flash
    1. 21.1  Flash Memory Configuration
    2. 21.2  Interrupts
    3. 21.3  Flash Memory Programming
    4. 21.4  32-Word Flash Memory Write Buffer
    5. 21.5  Flash Registers
    6. 21.6  CC323xSF Boot Flow
    7. 21.7  Flash User Application and Memory Partition
    8. 21.8  Programming, Bootstrapping, and Updating the Flash User Application
    9. 21.9  Image Authentication and Integrity Check
    10. 21.10 Debugging Flash User Application Using JTAG
  24. 22Revision History
  25.   A Software Development Kit Examples
  26.   B CC323x Device Miscellaneous Registers
    1. 24.1 DMA_IMR Register (offset = 8Ch) [reset = FF0Fh]
    2. 24.2 DMA_IMS Register (offset = 90h) [reset = 0h]
    3. 24.3 DMA_IMC Register (offset = 94h) [reset = 0h]
    4. 24.4 DMA_ICR Register (offset = 9Ch) [reset = 0h]
    5. 24.5 DMA_MIS Register (offset = A0h) [reset = 0h]
    6. 24.6 DMA_RIS Register (offset = A4h) [reset = 0h]
    7. 24.7 GPTTRIGSEL Register (offset = B0h) [reset = 0h]

2.2.7 Instruction Set Summary

The processor implements a version of the Thumb instruction set. Table 2-10 lists the supported instructions.

  • < > Angle brackets, enclose alternative forms of the operand.
  • { } Braces, enclose optional operands.
  • The Operands column is not exhaustive.
  • Op2 is a flexible second operand that can be either a register or a constant.
  • Most instructions can use an optional condition code suffix.

    For more information on the instructions and operands, see the instruction descriptions in the ARM® Cortex®-M4 Processor Technical Reference Manual.

Table 2-10 Cortex®-M4 Instruction Summary
MnemonicOperandsBrief DescriptionFlags
ADC, ADCS{Rd,} Rn, Op2Add with carryN,Z,C,V
ADD, ADDS{Rd,} Rn, Op2AddN,Z,C,V
ADD, ADDW{Rd,} Rn , #imm12Add–
ADRRd, labelLoad PC-related address–
AND, ANDS{Rd,} Rn, Op2Logical ANDN,Z,C
ASR, ASRSRd, Rm, <Rs|#n>Arithmetic shift rightN,Z,C
BlabelBranch–
BFCRd, #lsb, #widthBit field clear–
BFIRd, Rn, #lsb, #widthBit field insert–
BIC, BICS{Rd,} Rn, Op2Bit clearN,Z,C
BKPT#immBreakpoint–
BLlabelBranch with link–
BLXRmBranch indirect with link–
BXRmBranch indirect–
CBNZRn, labelCompare and branch if nonzero–
CBZRn, labelCompare and branch if zero–
CLREX–Clear exclusive–
CLZRd, RmCount leading zeros–
CMNRn, Op2Compare negativeN,Z,C,V
CMPRn, Op2CompareN,Z,C,V
CPSIDiChange processor state, disable interrupts–
CPSIEiChange processor state, enable interrupts–
DMB–Data memory barrier–
DSB–Data synchronization barrier–
EOR, EORS{Rd,} Rn, Op2Exclusive ORN,Z,C
ISB–Instruction synchronization barrier–
IT–If-Then condition block–
LDMRn{!}, reglistLoad multiple registers, increment after–
LDMDB, LDMEARn{!}, reglistLoad multiple registers, decrement before–
LDMFD, LDMIARn{!}, reglistLoad multiple registers, increment after–
LDRRt, [Rn, #offset]Load register with word–
LDRB, LDRBTRt, [Rn, #offset]Load register with byte–
LDRDRt, Rt2, [Rn, #offset]Load register with 2 bytes–
LDREXRt, [Rn, #offset]Load register exclusive–
LDREXBRt, [Rn]Load register exclusive with byte–
LDREXHRt, [Rn]Load register exclusive with halfword–
LDRH, LDRHTRt, [Rn, #offset]Load register with halfword–
LDRSB, LDRSBTRt, [Rn, #offset]Load register with signed byte–
LDRSH, LDRSHTRt, [Rn, #offset]Load register with signed halfword–
LDRTRt, [Rn, #offset]Load register with word–
LSL, LSLSRd, Rm, <Rs|#n>Logical shift leftN,Z,C
LSR, LSRSRd, Rm, <Rs|#n>Logical shift rightN,Z,C
MLARd, Rn, Rm, RaMultiply with accumulate, 32-bit result–
MLSRd, Rn, Rm, RaMultiply and subtract, 32-bit result–
MOV, MOVSRd, Op2MoveN,Z,C
MOV, MOVWRd, #imm16Move 16-bit constantN,Z,C
MOVTRd, #imm16Move top–
MRSRd, spec_regMove from special register to general register–
MSRspec_reg, RmMove from general register to special registerN,Z,C,V
MUL, MULS{Rd,} Rn, RmMultiply, 32-bit resultN,Z
MVN, MVNSRd, Op2Move NOTN,Z,C
NOP–No operation–
ORN, ORNS{Rd,} Rn, Op2Logical OR NOTN,Z,C
ORR, ORRS{Rd,} Rn, Op2Logical ORN,Z,C
PKHTB, PKHBT{Rd,} Rn, Rm, Op2Pack halfword–
POPreglistPop registers from stack–
PUSHreglistPush registers onto stack–
QADD{Rd,} Rn, RmSaturating addQ
QADD16{Rd,} Rn, RmSaturating add 16–
QADD8{Rd,} Rn, RmSaturating add 8–
QASX{Rd,} Rn, RmSaturating add and subtract with exchange–
QDADD{Rd,} Rn, RmSaturating double and addQ
QDSUB{Rd,} Rn, RmSaturating double and subtractQ
QSAX{Rd,} Rn, RmSaturating subtract and add with exchange–
QSUB{Rd,} Rn, RmSaturating subtractQ
QSUB16{Rd,} Rn, RmSaturating subtract 16–
QSUB8{Rd,} Rn, RmSaturating subtract 8–
RBITRd, RnReverse bits–
REVRd, RnReverse byte order in a word–
REV16Rd, RnReverse byte order in each halfword–
REVSHRd, RnReverse byte order in bottom halfword and sign extend–
ROR, RORSRd, Rm, <Rs|#n>Rotate rightN,Z,C
RRX, RRXSRd, RmRotate right with extendN,Z,C
RSB, RSBS{Rd,} Rn, Op2Reverse subtractN,Z,C,V
SADD16{Rd,} Rn, RmSigned add 16GE
SADD8{Rd,} Rn, RmSigned add 8GE
SASX{Rd,} Rn, RmSigned add and subtract with exchangeGE
SBC, SBCS{Rd,} Rn, Op2Subtract with carryN,Z,C,V
SBFXRd, Rn, #lsb, #widthSigned bit field extract–
SDIV{Rd,} Rn, RmSigned divide–
SEL{Rd,} Rn, RmSelect bytes–
SEV–Send event–
SHADD16{Rd,} Rn, RmSigned halving add 16–
SHADD8{Rd,} Rn, RmSigned halving add 8–
SHASX{Rd,} Rn, RmSigned halving add and subtract with exchange–
SHSAX{Rd,} Rn, RmSigned halving add and subtract with exchange–
SHSUB16{Rd,} Rn, RmSigned halving subtract 16–
SHSUB8{Rd,} Rn, RmSigned halving subtract 8–
SMLABB, SMLABT, SMLATB, SMLATTRd, Rn, Rm, RaSigned multiply accumulate long (halfwords)Q
SMLAD, SMLADXRd, Rn, Rm, RaSigned multiply accumulate dualQ
SMLALRdLo, RdHi, Rn, RmSigned long multiply with accumulate (32×32+64), 64-bit result–
SMLALBB, SMLALBT, SMLALTB, SMLALTTRdLo, RdHi, Rn, RmSigned multiply accumulate long (halfwords)–
SMLALD, SMLALDXRdLo, RdHi, Rn, RmSigned multiply accumulate long dual–
SMLAWB, SMLAWTRd, Rn, Rm, RaSigned multiply accumulate, word by halfwordQ
SMLSD, SMLSDXRd, Rn, Rm, RaSigned multiply subtract dualQ
SMLSLD, SMLSLDXRdLo, RdHi, Rn, RmSigned multiply subtract long dualQ
SMMLARd, Rn, Rm, RaSigned most significant word multiply accumulate–
SMMLS, SMMLRRd, Rn, Rm, RaSigned most significant word multiply subtract–
SMMUL, SMMULR{Rd,} Rn, RmSigned most significant word multiply–
SMUAD SMUADX{Rd,} Rn, RmSigned dual multiply addQ
SMULBB, SMULBT, SMULTB, SMULTT{Rd,} Rn, RmSigned multiply halfwords–
SMULLRdLo, RdHi, Rn, RmSigned long multiply (32×32), 64-bit result–
SMULWB, SMULWT{Rd,} Rn, RmSigned multiply by halfword–
SMUSD, SMUSDX{Rd,} Rn, RmSigned dual multiply subtract–
SSATRd, #n, Rm {,shift #s}Signed saturateQ
SSAT16Rd, #n, RmSigned saturate 16Q
SSAX{Rd,} Rn, RmSaturating subtract and add with exchangeGE
SSUB16{Rd,} Rn, RmSigned subtract 16–
SSUB8{Rd,} Rn, RmSigned subtract 8–
STMRn{!}, reglistStore multiple registers, increment after–
STMDB, STMEARn{!}, reglistStore multiple registers, decrement before–
STMFD, STMIARn{!}, reglistStore multiple registers, increment after–
STRRt, [Rn {, #offset}]Store register word–
STRB, STRBTRt, [Rn {, #offset}]Store register byte–
STRDRt, Rt2, [Rn {, #offset}]Store register two words–
STREXRt, Rt, [Rn {, #offset}]Store register exclusive–
STREXBRd, Rt, [Rn]Store register exclusive byte–
STREXHRd, Rt, [Rn]Store register exclusive halfword–
STRH, STRHTRt, [Rn {, #offset}]Store register halfword–
STRSB, STRSBTRt, [Rn {, #offset}]Store register signed byte–
STRSH, STRSHTRt, [Rn {, #offset}]Store register signed halfword–
STRTRt, [Rn {, #offset}]Store register word–
SUB, SUBS{Rd,} Rn, Op2SubtractN,Z,C,V
SUB, SUBW{Rd,} Rn, #imm12Subtract 12-bit constantN,Z,C,V
SVC#immSupervisor call–
SXTAB{Rd,} Rn, Rm, {,ROR #}Extend 8 bits to 32 and add–
SXTAB16{Rd,} Rn, Rm,{,ROR #}Dual extend 8 bits to 16 and add–
SXTAH{Rd,} Rn, Rm,{,ROR #}Extend 16 bits to 32 and add–
SXTB16{Rd,} Rm {,ROR #n}Signed extend byte 16–
SXTB{Rd,} Rm {,ROR #n}Sign extend a byte–
SXTH{Rd,} Rm {,ROR #n}Sign extend a halfword–
TBB[Rn, Rm]Table branch byte–
TBH[Rn, Rm, LSL #1]Table branch halfword–
TEQRn, Op2Test equivalenceN,Z,C
TSTRn, Op2TestN,Z,C
UADD16{Rd,} Rn, RmUnsigned add 16GE
UADD8{Rd,} Rn, RmUnsigned add 8GE
UASX{Rd,} Rn, RmUnsigned add and subtract with exchangeGE
UHADD16{Rd,} Rn, RmUnsigned halving add 16–
UHADD8{Rd,} Rn, RmUnsigned halving add 8–
UHASX{Rd,} Rn, RmUnsigned halving add and subtract with exchange–
UHSAX{Rd,} Rn, RmUnsigned halving subtract and add with exchange–
UHSUB16{Rd,} Rn, RmUnsigned halving subtract 16–
UHSUB8{Rd,} Rn, RmUnsigned halving subtract 8–
UBFXRd, Rn, #lsb, #widthUnsigned bit field extract–
UDIV{Rd,} Rn, RmUnsigned divide–
UMAALRdLo, RdHi, Rn, RmUnsigned long multiply with accumulate accumulate (32×32+32+32), 64-bit result–
UMLALRdLo, RdHi, Rn, RmUnsigned long multiply with accumulate (32×32+64), 64-bit result–
UMULLRdLo, RdHi, Rn, RmUnsigned long multiply (32×32), 64-bit result–
UQADD16{Rd,} Rn, RmUnsigned saturating add 16–
UQADD8{Rd,} Rn, RmUnsigned saturating add 8–
UQASX{Rd,} Rn, RmUnsigned saturating add and subtract with exchange–
UQSAX{Rd,} Rn, RmUnsigned saturating subtract and add with exchange–
UQSUB16{Rd,} Rn, RmUnsigned saturating subtract 16–
UQSUB8{Rd,} Rn, RmUnsigned saturating subtract 8–
USAD8{Rd,} Rn, RmUnsigned sum of absolute differences–
USADA8{Rd,} Rn, Rm, RaUnsigned sum of absolute differences and accumulate–
USATRd, #n, Rm {,shift #s}Unsigned saturateQ
USAT16Rd, #n, RmUnsigned saturate 16Q
USAX{Rd,} Rn, RmUnsigned subtract and add with exchangeGE
USUB16{Rd,} Rn, RmUnsigned subtract 16GE
USUB8{Rd,} Rn, RmUnsigned subtract 8GE
UXTAB{Rd,} Rn, Rm, {,ROR #}Rotate, extend 8 bits to 32 and add–
UXTAB16{Rd,} Rn, Rm, {,ROR #}Rotate, dual extend 8 bits to 16 and add–
UXTAH{Rd,} Rn, Rm, {,ROR #}Rotate, unsigned extend and add halfword–
UXTB{Rd,} Rm, {,ROR #n}Zero extend a byte–
UXTB16{Rd,} Rm, {,ROR #n}Unsigned extend byte 16–
UXTH{Rd,} Rm, {,ROR #n}Zero extend a halfword–
WFE–Wait for event–
WFI–Wait for interrupt–