SWRS273D November   2021  – September 2024 AWR2944

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
    1. 3.1 Functional Block Diagram
  5. 4 Device Comparison
    1. 4.1 Related Products
  6. 5 Pin Configurations and Functions
    1. 5.1 Pin Diagram
    2. 5.2 Pin Attributes
    3. 5.3 Signal Descriptions - Digital
    4. 5.4 Signal Descriptions - Analog
  7. 6 Specifications
    1. 6.1  Absolute Maximum Ratings
    2. 6.2  ESD Ratings
    3. 6.3  Power-On Hours (POH)
    4. 6.4  Recommended Operating Conditions
    5. 6.5  VPP Specifications for One-Time Programmable (OTP) eFuses
      1. 6.5.1 Recommended Operating Conditions for OTP eFuse Programming
      2. 6.5.2 Hardware Requirements
      3. 6.5.3 Impact to Your Hardware Warranty
    6. 6.6  Power Supply Specifications
    7. 6.7  Power Consumption Summary
    8. 6.8  RF Specifications
    9. 6.9  Thermal Resistance Characteristics
    10. 6.10 Power Supply Sequencing and Reset Timing
    11. 6.11 Input Clocks and Oscillators
      1. 6.11.1 Clock Specifications
    12. 6.12 Peripheral Information
      1. 6.12.1  QSPI Flash Memory Peripheral
        1. 6.12.1.1 QSPI Timing Conditions
        2. 6.12.1.2 QSPI Timing Requirements #GUID-CD30070D-F132-4A2C-92CD-5AA96AE70B94/GUID-97D19708-D87E-443B-9ADF-1760CFEF6F4C #GUID-CD30070D-F132-4A2C-92CD-5AA96AE70B94/GUID-0A61EEC9-2B95-4C27-B219-18D27C8F9430
        3. 6.12.1.3 QSPI Switching Characteristics #GUID-20B35D26-AFE6-451C-B9E9-B3F2FA08097C/T4362547-64 #GUID-20B35D26-AFE6-451C-B9E9-B3F2FA08097C/T4362547-65
      2. 6.12.2  Multibuffered / Standard Serial Peripheral Interface (MibSPI)
        1. 6.12.2.1 MibSPI Peripheral Description
        2. 6.12.2.2 MibSPI Transmit and Receive RAM Organization
          1. 6.12.2.2.1 SPI Timing Conditions
          2. 6.12.2.2.2 SPI Controller Mode Switching Parameters (CLOCK PHASE = 0, SPICLK = output, SPISIMO = output, and SPISOMI = input) #GUID-20BA2ACF-4FC2-43F6-960F-1A4CA56E65A6/T4362547-236 #GUID-20BA2ACF-4FC2-43F6-960F-1A4CA56E65A6/T4362547-237 #GUID-20BA2ACF-4FC2-43F6-960F-1A4CA56E65A6/T4362547-238
          3. 6.12.2.2.3 SPI Controller Mode Switching Parameters (CLOCK PHASE = 1, SPICLK = output, SPISIMO = output, and SPISOMI = input) #GUID-517E5284-3345-461F-B07F-EB95741B1272/T4362547-244 #GUID-517E5284-3345-461F-B07F-EB95741B1272/T4362547-245 #GUID-517E5284-3345-461F-B07F-EB95741B1272/T4362547-246
        3. 6.12.2.3 SPI Peripheral Mode I/O Timings
          1. 6.12.2.3.1 SPI Peripheral Mode Switching Parameters (SPICLK = input, SPISIMO = input, and SPISOMI = output) #GUID-5C88F9F6-787B-49E2-984F-02158AB0C326/T4362547-70 #GUID-5C88F9F6-787B-49E2-984F-02158AB0C326/T4362547-71 #GUID-5C88F9F6-787B-49E2-984F-02158AB0C326/T4362547-73
      3. 6.12.3  Ethernet Switch (RGMII/RMII/MII) Peripheral
        1. 6.12.3.1  RGMII Timing Conditions
        2. 6.12.3.2  RGMII Transmit Clock Switching Characteristics
        3. 6.12.3.3  RGMII Transmit Data and Control Switching Characteristics
        4. 6.12.3.4  RGMII Receive Clock Timing Requirements
        5. 6.12.3.5  RGMII Receive Data and Control Timing Requirements
        6. 6.12.3.6  RMII Transmit Clock Switching Characteristics
        7. 6.12.3.7  RMII Transmit Data and Control Switching Characteristics
        8. 6.12.3.8  RMII Receive Clock Timing Requirements
        9. 6.12.3.9  RMII Receive Data and Control Timing Requirements
        10. 6.12.3.10 MII Transmit Switching Characteristics
        11. 6.12.3.11 MII Receive Clock Timing Requirements
        12. 6.12.3.12 MII Receive Timing Requirements
        13. 6.12.3.13 MII Transmit Clock Timing Requirements
        14. 6.12.3.14 MDIO Interface Timings
      4. 6.12.4  LVDS/Aurora Instrumentation and Measurement Peripheral
        1. 6.12.4.1 LVDS Interface Configuration
        2. 6.12.4.2 LVDS Interface Timings
      5. 6.12.5  UART Peripheral
        1. 6.12.5.1 SCI Timing Requirements
      6. 6.12.6  Inter-Integrated Circuit Interface (I2C)
        1. 6.12.6.1 I2C Timing Requirements #GUID-437677C7-D935-4733-A64D-553EFECA73F7/T4362547-185
      7. 6.12.7  Controller Area Network - Flexible Data-rate (CAN-FD)
        1. 6.12.7.1 Dynamic Characteristics for the CAN-FD TX and RX Pins
      8. 6.12.8  CSI2 Receiver Peripheral
        1. 6.12.8.1 CSI2 Switching Characteristics
      9. 6.12.9  Enhanced Pulse-Width Modulator (ePWM)
      10. 6.12.10 General-Purpose Input/Output
        1. 6.12.10.1 Switching Characteristics for Output Timing versus Load Capacitance (CL) #GUID-46919170-3C9C-440C-879B-A7700B77517D/T4362547-45 #GUID-46919170-3C9C-440C-879B-A7700B77517D/T4362547-50
    13. 6.13 Emulation and Debug
      1. 6.13.1 Emulation and Debug Description
      2. 6.13.2 JTAG Interface
        1. 6.13.2.1 Timing Requirements for IEEE 1149.1 JTAG
        2. 6.13.2.2 Switching Characteristics for IEEE 1149.1 JTAG
      3. 6.13.3 ETM Trace Interface
        1. 6.13.3.1 ETM TRACE Timing Requirements
        2. 6.13.3.2 ETM TRACE Switching Characteristics
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Subsystems
      1. 7.3.1 RF and Analog Subsystem
        1. 7.3.1.1 RF Clock Subsystem
        2. 7.3.1.2 Transmit Subsystem
        3. 7.3.1.3 Receive Subsystem
      2. 7.3.2 Processor Subsystem
      3. 7.3.3 Automotive Interfaces
    4. 7.4 Other Subsystems
      1. 7.4.1 Hardware Accelerator Subsystem
      2. 7.4.2 Security – Hardware Security Module
      3. 7.4.3 ADC Channels (Service) for User Application
  9. 8 Monitoring and Diagnostics
    1. 8.1 Monitoring and Diagnostic Mechanisms
  10. 9 Applications, Implementation, and Layout
    1. 9.1 Application Information
    2. 9.2 Short and Medium Range Radar
    3. 9.3 Reference Schematic
  11. 10Device and Documentation Support
    1. 10.1 Device Support
    2. 10.2 Device Nomenclature
    3. 10.3 Tools and Software
    4. 10.4 Documentation support
    5. 10.5 Support Resources
    6. 10.6 Trademarks
    7. 10.7 Receiving Notification of Documentation Updates
    8. 10.8 Electrostatic Discharge Caution
    9. 10.9 Glossary
  12. 11Revision History
  13. 12Mechanical, Packaging, and Orderable Information

6.12.6.1 I2C Timing Requirements(1)

STANDARD MODE FAST MODE UNIT
MIN MAX MIN MAX
tc(SCL) Cycle time, SCL 10 2.5 μs
tsu(SCLH-SDAL) Setup time, SCL high before SDA low
(for a repeated START condition)		 4.7 0.6 μs
th(SCLL-SDAL) Hold time, SCL low after SDA low
(for a START and a repeated START condition)		 4 0.6 μs
tw(SCLL) Pulse duration, SCL low 4.7 1.3 μs
tw(SCLH) Pulse duration, SCL high 4 0.6 μs
tsu(SDA-SCLH) Setup time, SDA valid before SCL high 250 100 μs
th(SCLL-SDA)(1) Hold time, SDA valid after SCL low 0 3.45 0 0.9 μs
tw(SDAH) Pulse duration, SDA high between STOP and START conditions 4.7 1.3 μs
tsu(SCLH-SDAH) Setup time, SCL high before SDA high
(for STOP condition)		 4 0.6 μs
tw(SP) Pulse duration, spike (must be suppressed) 0 50 ns
Cb(2)(3) Capacitive load for each bus line 400 400 pF
(1) The I2C pins SDA and SCL do not feature fail-safe I/O buffers. These pins could potentially draw current when the device is powered down.
(2) The maximum th(SDA-SCLL) for I2C bus devices has only to be met if the device does not stretch the low period (tw(SCLL)) of the SCL signal.
(3) Cb = total capacitance of one bus line in pF. If mixed with fast-mode devices, faster fall-times are allowed.
AWR2943 AWR2944 AWR2944LC I2C Timing Diagram Figure 6-23 I2C Timing Diagram
Note:
  • A device must internally provide a hold time of at least 300 ns for the SDA signal (referred to the VIHmin of the SCL signal) to bridge the undefined region of the falling edge of SCL.
  • The maximum th(SDA-SCLL) has only to be met if the device does not stretch the LOW period (tw(SCLL)) of the SCL signal. E.A Fast-mode I2C-bus device can be used in a Standard-mode I2C-bus system, but the requirement tsu(SDA-SCLH) ≥ 250 ns must then be met. This will automatically be the case if the device does not stretch the LOW period of the SCL signal. If such a device does stretch the LOW period of the SCL signal, it must output the next data bit to the SDA line tr max + tsu(SDA-SCLH).