SWRS222B December   2018  – April 2020 AWR1843

PRODUCTION DATA.  

  1. Device Overview
    1. 1.1 Features
    2. 1.2 Applications
    3. 1.3 Description
    4. 1.4 Functional Block Diagram
  2. Revision History
  3. Device Comparison
    1. 3.1 Related Products
  4. Terminal Configuration and Functions
    1. 4.1 Pin Diagram
    2. 4.2 Pin Attributes
      1. Table 4-3 PAD IO Register Bit Descriptions
    3. 4.3 Signal Descriptions
      1. Table 4-4 Signal Descriptions - Digital
      2. Table 4-5 Signal Descriptions - Analog
  5. Specifications
    1. 5.1  Absolute Maximum Ratings
    2. 5.2  ESD Ratings
    3. 5.3  Power-On Hours (POH)
    4. 5.4  Recommended Operating Conditions
    5. 5.5  Power Supply Specifications
    6. 5.6  Power Consumption Summary
    7. 5.7  RF Specification
    8. 5.8  CPU Specifications
    9. 5.9  Thermal Resistance Characteristics for FCBGA Package [ABL0161]
    10. 5.10 Timing and Switching Characteristics
      1. 5.10.1  Power Supply Sequencing and Reset Timing
      2. 5.10.2  Input Clocks and Oscillators
        1. 5.10.2.1 Clock Specifications
      3. 5.10.3  Multibuffered / Standard Serial Peripheral Interface (MibSPI)
        1. 5.10.3.1 Peripheral Description
        2. 5.10.3.2 MibSPI Transmit and Receive RAM Organization
          1. Table 5-7 SPI Timing Conditions
          2. Table 5-8 SPI Master Mode Switching Parameters (CLOCK PHASE = 0, SPICLK = output, SPISIMO = output, and SPISOMI = input)
          3. Table 5-9 SPI Master Mode Switching Parameters (CLOCK PHASE = 1, SPICLK = output, SPISIMO = output, and SPISOMI = input)
        3. 5.10.3.3 SPI Slave Mode I/O Timings
          1. Table 5-10 SPI Slave Mode Switching Parameters (SPICLK = input, SPISIMO = input, and SPISOMI = output)
        4. 5.10.3.4 Typical Interface Protocol Diagram (Slave Mode)
      4. 5.10.4  LVDS Interface Configuration
        1. 5.10.4.1 LVDS Interface Timings
      5. 5.10.5  General-Purpose Input/Output
        1. Table 5-12 Switching Characteristics for Output Timing versus Load Capacitance (CL)
      6. 5.10.6  Controller Area Network Interface (DCAN)
        1. Table 5-13 Dynamic Characteristics for the DCANx TX and RX Pins
      7. 5.10.7  Controller Area Network - Flexible Data-rate (CAN-FD)
        1. Table 5-14 Dynamic Characteristics for the CANx TX and RX Pins
      8. 5.10.8  Serial Communication Interface (SCI)
        1. Table 5-15 SCI Timing Requirements
      9. 5.10.9  Inter-Integrated Circuit Interface (I2C)
        1. Table 5-16 I2C Timing Requirements
      10. 5.10.10 Quad Serial Peripheral Interface (QSPI)
        1. Table 5-17 QSPI Timing Conditions
        2. Table 5-18 Timing Requirements for QSPI Input (Read) Timings
        3. Table 5-19 QSPI Switching Characteristics
      11. 5.10.11 ETM Trace Interface
        1. Table 5-20 ETMTRACE Timing Conditions
        2. Table 5-21 ETM TRACE Switching Characteristics
      12. 5.10.12 Data Modification Module (DMM)
        1. Table 5-22 DMM Timing Requirements
      13. 5.10.13 JTAG Interface
        1. Table 5-23 JTAG Timing Conditions
        2. Table 5-24 Timing Requirements for IEEE 1149.1 JTAG
        3. Table 5-25 Switching Characteristics Over Recommended Operating Conditions for IEEE 1149.1 JTAG
  6. Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagram
    3. 6.3 Subsystems
      1. 6.3.1 RF and Analog Subsystem
        1. 6.3.1.1 Clock Subsystem
        2. 6.3.1.2 Transmit Subsystem
        3. 6.3.1.3 Receive Subsystem
      2. 6.3.2 Processor Subsystem
      3. 6.3.3 Automotive Interface
      4. 6.3.4 Master Subsystem Cortex-R4F Memory Map
      5. 6.3.5 DSP Subsystem Memory Map
    4. 6.4 Other Subsystems
      1. 6.4.1 ADC Channels (Service) for User Application
        1. Table 6-3 GP-ADC Parameter
  7. Monitoring and Diagnostics
    1. 7.1 Monitoring and Diagnostic Mechanisms
      1. 7.1.1 Error Signaling Module
  8. Applications, Implementation, and Layout
    1. 8.1 Application Information
    2. 8.2 Short- and Medium-Range Radar
    3. 8.3 Reference Schematic
    4. 8.4 Layout
      1. 8.4.1 Layout Guidelines
      2. 8.4.2 Stackup Details
  9. Device and Documentation Support
    1. 9.1 Device Nomenclature
    2. 9.2 Tools and Software
    3. 9.3 Documentation Support
    4. 9.4 Support Resources
    5. 9.5 Trademarks
    6. 9.6 Electrostatic Discharge Caution
    7. 9.7 Glossary
  10. 10Mechanical, Packaging, and Orderable Information
    1. 10.1 Packaging Information

Package Options

Refer to the PDF data sheet for device specific package drawings

Mechanical Data (Package|Pins)
  • ABL|161
Thermal pad, mechanical data (Package|Pins)
Orderable Information

Processor Subsystem

AWR1843 processor_subsystem_awr18.gifFigure 6-5 Processor Subsystem

Figure 6-5 shows the block diagram for customer programmable processor subsystems in the AWR1843 device. At a high level there are two customer programmable subsystems, as shown separated by a dotted line in the diagram. Left hand side shows the DSP Subsystem which contains TI's high-performance C674x DSP, a high-bandwidth interconnect for high performance (128-bit, 200MHz), and associated peripherals – four DMAs for data transfer,

LVDS interface for Measurement data output, L3 Radar data cube memory, ADC buffers, CRC engine, and data handshake memory (additional memory provided on interconnect).

The right side of the diagram shows the Master subsystem. Master subsystem as name suggests is the master of the device and controls all the device peripherals and house-keeping activities of the device. Master subsystem contains Cortex-R4F (Master R4F) processor and associated peripherals and house-keeping components such as DMAs, CRC and Peripherals (I2C, UART, SPIs, CAN, PMIC clocking module, PWM, and others) connected to Master Interconnect through Peripheral Central Resource (PCR interconnect).

Details of the DSP CPU core can be found at http://www.ti.com/product/TMS320C6748.

HIL module is shown in both the subsystems and can be used to perform the radar operations feeding the captured data from outside into the device without involving the RF subsystem. HIL on master SS is for controlling the configuration and HIL on DSPSS for high speed ADC data input to the device. Both HIL modules uses the same IOs on the device, one additional IO (DMM_MUX_IN) allows selecting either of the two.