SPRABJ8 September   2022 AM2631 , AM2631-Q1 , AM2632 , AM2632-Q1 , AM2634 , AM2634-Q1

 

  1.   Abstract
  2.   Trademarks
  3. 1 Introduction
    1. 1.1 Acronyms
  4. 2 Power
    1. 2.1 Discrete DC-DC Power Solution
    2. 2.2 Integrated PMIC Power Solution
    3. 2.3 Power Decoupling and Filtering
    4. 2.4 Power Consumption
    5. 2.5 Power Distribution Network
      1. 2.5.1 Simulations
        1. 2.5.1.1 Core Digital Power 1.2 V
        2. 2.5.1.2 Digital/Analog I/O Power 3.3 V
    6. 2.6 e-Fuse Power
  5. 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
  6. 4 Resets
  7. 5 Bootstrapping
    1. 5.1 SOP Signal Implementation
    2. 5.2 QSPI Memory Controller Implementation
    3. 5.3 ROM QSPI Boot Requirements
  8. 6 JTAG Emulators and Trace
  9. 7 Multiplexed Peripherals
  10. 8 Digital Peripherals
    1. 8.1 General Digital Peripheral Routing Guidelines
  11. 9 Layer Stackup
    1. 9.1 Key Stackup Features
  12. 10Vias
  13. 11BGA Power Fan-Out and Decoupling Placement
    1. 11.1 Ground Return
    2. 11.2 1.2 V Core Digital Power
      1. 11.2.1 Key Layout Considerations
    3. 11.3 3.3 V Digital and Analog Power
      1. 11.3.1 Key Layout Considerations
    4. 11.4 1.8 V Digital and Analog Power
      1. 11.4.1 Key Layout Considerations
  14. 12References

Abstract

This document intends to serve as a guide for hardware designers creating PCB systems based on the AM263x family of MCU devices. This document serves to integrate device-specific schematic and PCB layout recommendations and examples from the various AM263x evaluation modules (EVM) such as the LP-AM263 Launchpad™ and TMDSCNCD263 controlCard, with the AM263x Sitara™ Microcontroller Data Sheet, AM263x Sitara™ Microcontroller Technical Reference Manual and other collateral documents and tools, as shown in Section 12.