SWRS256 March   2022 CC1311R3

PRODUCTION DATA  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Functional Block Diagram
  5. 5 Revision History
  6. 6 Device Comparison
  7. 7 Pin Configuration and Functions
    1. 7.1 Pin Diagram – RGZ Package (Top View)
    2. 7.2 Signal Descriptions – RGZ Package
    3. 7.3 Pin Diagram – RKP Package (Top View)
    4. 7.4 Signal Descriptions – RKP Package
    5. 7.5 Connections for Unused Pins and Modules
  8. 8 Specifications
    1. 8.1  Absolute Maximum Ratings
    2. 8.2  ESD Ratings
    3. 8.3  Recommended Operating Conditions
    4. 8.4  Power Supply and Modules
    5. 8.5  Power Consumption - Power Modes
    6. 8.6  Power Consumption - Radio Modes
    7. 8.7  Nonvolatile (Flash) Memory Characteristics
    8. 8.8  Thermal Resistance Characteristics
    9. 8.9  RF Frequency Bands
    10. 8.10 861 MHz to 1054 MHz - Receive (RX)
    11. 8.11 861 MHz to 1054 MHz - Transmit (TX) 
    12. 8.12 861 MHz to 1054 MHz - PLL Phase Noise Wideband Mode
    13. 8.13 861 MHz to 1054 MHz - PLL Phase Noise Narrowband Mode
    14. 8.14 359 MHz to 527 MHz - Receive (RX)
    15. 8.15 359 MHz to 527 MHz - Transmit (TX) 
    16. 8.16 359 MHz to 527 MHz - PLL Phase Noise
    17. 8.17 Timing and Switching Characteristics
      1. 8.17.1 Reset Timing
      2. 8.17.2 Wakeup Timing
      3. 8.17.3 Clock Specifications
        1. 8.17.3.1 48 MHz Crystal Oscillator (XOSC_HF)
        2. 8.17.3.2 48 MHz RC Oscillator (RCOSC_HF)
        3. 8.17.3.3 32.768 kHz Crystal Oscillator (XOSC_LF)
        4. 8.17.3.4 32 kHz RC Oscillator (RCOSC_LF)
      4. 8.17.4 Synchronous Serial Interface (SSI) Characteristics
        1. 8.17.4.1 Synchronous Serial Interface (SSI) Characteristics
        2.       40
      5. 8.17.5 UART
        1. 8.17.5.1 UART Characteristics
    18. 8.18 Peripheral Characteristics
      1. 8.18.1 ADC
        1. 8.18.1.1 Analog-to-Digital Converter (ADC) Characteristics
      2. 8.18.2 DAC
        1. 8.18.2.1 Digital-to-Analog Converter (DAC) Characteristics
      3. 8.18.3 Temperature and Battery Monitor
        1. 8.18.3.1 Temperature Sensor
        2. 8.18.3.2 Battery Monitor
      4. 8.18.4 Comparator
        1. 8.18.4.1 Continuous Time Comparator
      5. 8.18.5 GPIO
        1. 8.18.5.1 GPIO DC Characteristics
    19. 8.19 Typical Characteristics
      1. 8.19.1 MCU Current
      2. 8.19.2 RX Current
      3. 8.19.3 TX Current
      4. 8.19.4 RX Performance
      5. 8.19.5 TX Performance
      6. 8.19.6 ADC Performance
  9. 9 Detailed Description
    1. 9.1  Overview
    2. 9.2  System CPU
    3. 9.3  Radio (RF Core)
      1. 9.3.1 Proprietary Radio Formats
    4. 9.4  Memory
    5. 9.5  Cryptography
    6. 9.6  Timers
    7. 9.7  Serial Peripherals and I/O
    8. 9.8  Battery and Temperature Monitor
    9. 9.9  µDMA
    10. 9.10 Debug
    11. 9.11 Power Management
    12. 9.12 Clock Systems
    13. 9.13 Network Processor
  10. 10Application, Implementation, and Layout
    1. 10.1 Reference Designs
    2. 10.2 Junction Temperature Calculation
  11. 11Device and Documentation Support
    1. 11.1 Device Nomenclature
    2. 11.2 Tools and Software
      1. 11.2.1 SimpleLink™ Microcontroller Platform
    3. 11.3 Documentation Support
    4. 11.4 Support Resources
    5. 11.5 Trademarks
    6. 11.6 Electrostatic Discharge Caution
    7. 11.7 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

Package Options

Refer to the PDF data sheet for device specific package drawings

Mechanical Data (Package|Pins)
  • RGZ|48
  • RKP|40
Thermal pad, mechanical data (Package|Pins)
Orderable Information

9.6 Timers

A large selection of timers are available as part of the CC1311R3 device. These timers are:

  • Real-Time Clock (RTC)

    A 70-bit 3-channel timer running on the 32 kHz low frequency system clock (SCLK_LF)
    This timer is available in all power modes except Shutdown. The timer can be calibrated to compensate for frequency drift when using the LF RCOSC as the low frequency system clock. If an external LF clock with frequency different from 32.768 kHz is used, the RTC tick speed can be adjusted to compensate for this. When using TI-RTOS, the RTC is used as the base timer in the operating system and should thus only be accessed through the kernel APIs such as the Clock module. By default, the RTC halts when a debugger halts the device.

  • General Purpose Timers (GPTIMER)

    The four flexible GPTIMERs can be used as either 4× 32 bit timers or 8× 16 bit timers, all running on up to 48 MHz. Each of the 16- or 32-bit timers support a wide range of features such as one-shot or periodic counting, pulse width modulation (PWM), time counting between edges and edge counting. The inputs and outputs of the timer are connected to the device event fabric, which allows the timers to interact with signals such as GPIO inputs, other timers, DMA and ADC. The GPTIMERs are available in Active and Idle power modes.

  • Radio Timer

    A multichannel 32-bit timer running at 4 MHz is available as part of the device radio. The radio timer is typically used as the timing base in wireless network communication using the 32-bit timing word as the network time. The radio timer is synchronized with the RTC by using a dedicated radio API when the device radio is turned on or off. This ensures that for a network stack, the radio timer seems to always be running when the radio is enabled. The radio timer is in most cases used indirectly through the trigger time fields in the radio APIs and should only be used when running the accurate 48 MHz high frequency crystal is the source of SCLK_HF.

  • Watchdog timer

    The watchdog timer is used to regain control if the system operates incorrectly due to software errors. It is typically used to generate an interrupt to and reset of the device for the case where periodic monitoring of the system components and tasks fails to verify proper functionality. The watchdog timer runs on a 1.5 MHz clock rate and cannot be stopped once enabled. The watchdog timer pauses to run in Standby power mode and when a debugger halts the device.