SPRABJ8D September   2022  – May 2025 AM2612 , AM2631 , AM2631-Q1 , AM2632 , AM2632-Q1 , AM2634 , AM2634-Q1 , AM263P2 , AM263P2-Q1 , AM263P4 , AM263P4-Q1

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1 Introduction
  5. 2 Power
    1. 2.1 Discrete DC-DC Power Solution
    2. 2.2 Integrated PMIC Power Solution
    3. 2.3 Power Decoupling and Filtering
      1. 2.3.1 ADC/DAC Voltage Reference Decoupling
    4. 2.4 Estimated Power Consumption
    5. 2.5 Power Distribution Network
      1. 2.5.1 Simulations
        1. 2.5.1.1 Core Digital Power 1.2V
        2. 2.5.1.2 Digital and Analog I/O Power 3.3V
    6. 2.6 eFuse Power
  6. 3 Clocking
    1. 3.1 Crystal and Oscillator Input Options
    2. 3.2 Output Clock Generation
    3. 3.3 Crystal Selection and Shunt Capacitance
    4. 3.4 Crystal Placement and Routing
  7. 4 Resets
  8. 5 Bootstrapping
    1. 5.1 SOP Signal Implementation
  9. 6 OSPI and QSPI Memory Implementation
    1. 6.1 ROM OSPI and QSPI Boot Requirements
      1. 6.1.1 AM263x QSPI Boot Pin Requirements
      2. 6.1.2 AM263Px OSPI and QSPI Boot Pin Requirements
      3. 6.1.3 AM261x OSPI and QSPI Boot Pin Requirements
    2. 6.2 Additional OSPI and QSPI References
  10. 7 Debug Interfaces
    1. 7.1 JTAG Emulators and Trace
    2. 7.2 UART
  11. 8 USB
    1. 8.1 USB Device Mode
    2. 8.2 USB Host Mode
  12. 9 Multiplexed Peripherals
  13. 10Digital Peripherals
    1. 10.1 General Digital Peripheral Routing Guidelines
    2. 10.2 Trace Length Matching
  14. 11Analog Peripherals
    1. 11.1 General Analog Peripheral Routing Guidelines
      1. 11.1.1 Resolver ADC Routing Guidelines
  15. 12Layer Stackup
    1. 12.1 Key Stackup Features
  16. 13Vias
  17. 14BGA Power Fan-Out and Decoupling Placement
    1. 14.1 Ground Return
      1. 14.1.1 Ground Return - ZCZ Package AM26x Devices
      2. 14.1.2 Ground Return - ZNC and ZFG Package AM261x Devices
    2. 14.2 1.2V Core Digital Power
      1. 14.2.1 1.2V Core Digital Power Key Layout Considerations - ZCZ
      2. 14.2.2 1.2V Core Digital Power Key Layout Considerations - ZFG
    3. 14.3 3.3V Digital and Analog Power
      1. 14.3.1 3.3V I/O Power Key Layout Considerations - ZCZ
      2. 14.3.2 3.3V I/O Power Key Layout Considerations - ZFG
    4. 14.4 1.8V Digital and Analog Power
      1. 14.4.1 1.8V Key Layout Considerations - ZCZ
      2. 14.4.2 1.8V Key Layout Considerations - ZFG
  18. 15Summary
  19. 16References
  20. 17Revision History

16 References

AM263x

Device Documentation

  1. Texas Instruments, AM263x Sitara™ Microcontroller, data sheet
  2. Texas Instruments, AM263x Sitara™ Microcontroller Technical Reference Manual, technical reference manual
  3. Texas Instruments, AM263x Sitara™ Microcontroller Technical Reference Manual Addendum, register addendum

EVM Documentation

  1. Texas Instruments, LP-AM263, AM263x LaunchPad EVM
  2. Texas Instruments, TMDSCNCD263, AM263x controlCARD EVM

Software Development

  1. Texas Instruments, MCU-PLUS-SDK-AM263X, AM263x MCU software development kit

AM263Px

Device Documentation

  1. Texas Instruments, AM263Px Sitara™ Microcontroller, data sheet
  2. Texas Instruments, AM263Px Sitara™ Microcontroller Technical Reference Manual, technical reference manual
  3. Texas Instruments, AM263Px Sitara™ Microcontroller Technical Reference Manual Addendum, register addendum

EVM Documentation

  1. Texas Instruments, LP-AM263P, AM263Px LaunchPad EVM
  2. Texas Instruments, TMDSCNCD263P, AM263Px controlCard EVM

Software Development

  1. Texas Instruments, MCU-PLUS-SDK-AM263PX, AM263Px MCU software development kit

AM261x

Device Documentation

  1. Texas Instruments, AM261x Sitara™ Microcontrollers, data sheet
  2. Texas Instruments, AM261x Sitara Microcontrollers Technical Reference Manual, technical reference manual
  3. Texas Instruments, AM261x Sitara Microcontrollers Register Addendum, register addendum

EVM Documentation

  1. Texas Instruments, LP-AM261, AM261x LaunchPad EVM
  2. Texas Instruments, AM261-SOM-EVM, AM261x controlSOM EVM

Software Development

  1. Texas Instruments, MCU-PLUS-SDK-AM261X, AM261x MCU software development kit

Software Development Tools

  1. Texas Instruments, System Configuration Tool (SYSCONFIG)
  2. Texas Instruments, Code Composer Studio IDE

General HW Design Resources

  1. MIPI Alliance, Recommendation for Debug and Trace Connectors, MIPI Debug & Trace Connector Recommendations, white paper
  2. Texas Instruments, JTAG Connectors and Pinout, webpage
  3. Texas Instruments, Sitara MCU Thermal Design, application note
  4. Texas Instruments, High-speed Interface Layout Guidelines, application note