SPRACJ6A October   2018  – December 2022 AM6526 , AM6528 , AM6546 , AM6548

 

  1.   Trademarks
  2. 1 Introduction
    1. 1.1 Before Getting Started
    2. 1.2 Device (Processor) Selection
    3. 1.3 Technical Documentation
    4. 1.4 Design Documentation
  3. 2 System Block Diagram
    1. 2.1 Creating the System Block Diagram
    2. 2.2 Selecting the Boot Mode
    3. 2.3 Confirming Pin Multiplexing Compatibility
  4. 3 Power Supply
    1. 3.1 Power (Supply) Rails
      1. 3.1.1 Internal LDOs for IO groups
      2. 3.1.2 Dual-Voltage LVCMOS I/Os
      3. 3.1.3 Dual-Voltage Switching SDIO I/Os
    2. 3.2 Determining System Power Requirements
    3. 3.3 Power Supply Filters
    4. 3.4 Power Supply Decoupling and Bulk Capacitors
    5. 3.5 Power Supply Sequencing
  5. 4 Clocking
    1. 4.1 System Clock Inputs
    2. 4.2 Single-Ended Clock Sources
    3. 4.3 Unused Clock Inputs
  6. 5 JTAG
    1. 5.1 JTAG / Emulation
      1. 5.1.1 Configuration of JTAG / Emulation
      2. 5.1.2 System Implementation of JTAG / Emulation
      3. 5.1.3 JTAG Termination
  7. 6 Device Configurations and Initialization
    1. 6.1 Device Reset
    2. 6.2 Boot Modes
    3. 6.3 Watchdog Timer
  8. 7 Peripherals
    1. 7.1 Selecting Peripherals Across Functional Domains
    2. 7.2 Ethernet Interface
    3. 7.3 Programmable Real-Time Unit and Industrial Communication Subsystem - Gigabit (PRU-ICSSG)
    4. 7.4 Universal Serial Bus (USB) Subsystem
  9. 8 I/O Buffers and Termination
  10. 9 Power Consumption and Thermal Solutions
    1. 9.1 Power Consumption
    2. 9.2 Power Savings Modes
    3. 9.3 Guidance on Thermal Solution
  11. 10Schematic Recommendations
    1. 10.1 Selection of Component and Values
    2. 10.2 Schematics Development
    3. 10.3 Reviewing the Schematics
    4. 10.4 Floor planning of the PCB
  12. 11Layout and Routing Guidelines
    1. 11.1 Escape Routing Guidelines
    2. 11.2 DDR Board Design and Layout Guidelines
    3. 11.3 High-Speed Differential Signal Routing Guidance
  13. 12Terminology
  14. 13References
  15. 14Revision History

1.1 Before Getting Started

The AM65x processors includes wide variety of capabilities, not all of which will be used in every design. Consequently, the requirements for different designs using the same device can vary widely depending on the target application. Designers must understand the requirements before determining the details of the design. In addition, the design may require additional circuitry to operate correctly in the target environment. For the selected device and determine the following, see latest device-specific collaterals on TI.com like the data sheet, Errata, TRM and EVM User's guides:

  • What are the expected environmental conditions for the device operation, target boot mode, storage type and interfaces used
  • How much processing will each of the cores in the selected device be performing
  • What is the DDR memory type, speed and interface that will be used
  • Peripherals attached to the processor