SPRACJ6A
October 2018 – December 2022
AM6526
,
AM6528
,
AM6546
,
AM6548
Trademarks
1
Introduction
1.1
Before Getting Started
1.2
Device (Processor) Selection
1.3
Technical Documentation
1.4
Design Documentation
2
System Block Diagram
2.1
Creating the System Block Diagram
2.2
Selecting the Boot Mode
2.3
Confirming Pin Multiplexing Compatibility
3
Power Supply
3.1
Power (Supply) Rails
3.1.1
Internal LDOs for IO groups
3.1.2
Dual-Voltage LVCMOS I/Os
3.1.3
Dual-Voltage Switching SDIO I/Os
3.2
Determining System Power Requirements
3.3
Power Supply Filters
3.4
Power Supply Decoupling and Bulk Capacitors
3.5
Power Supply Sequencing
4
Clocking
4.1
System Clock Inputs
4.2
Single-Ended Clock Sources
4.3
Unused Clock Inputs
5
JTAG
5.1
JTAG / Emulation
5.1.1
Configuration of JTAG / Emulation
5.1.2
System Implementation of JTAG / Emulation
5.1.3
JTAG Termination
6
Device Configurations and Initialization
6.1
Device Reset
6.2
Boot Modes
6.3
Watchdog Timer
7
Peripherals
7.1
Selecting Peripherals Across Functional Domains
7.2
Ethernet Interface
7.3
Programmable Real-Time Unit and Industrial Communication Subsystem - Gigabit (PRU-ICSSG)
7.4
Universal Serial Bus (USB) Subsystem
8
I/O Buffers and Termination
9
Power Consumption and Thermal Solutions
9.1
Power Consumption
9.2
Power Savings Modes
9.3
Guidance on Thermal Solution
10
Schematic Recommendations
10.1
Selection of Component and Values
10.2
Schematics Development
10.3
Reviewing the Schematics
10.4
Floor planning of the PCB
11
Layout and Routing Guidelines
11.1
Escape Routing Guidelines
11.2
DDR Board Design and Layout Guidelines
11.3
High-Speed Differential Signal Routing Guidance
12
Terminology
13
References
14
Revision History
11
Layout and Routing Guidelines
After completing schematic capture and reviews, the next design step is the PCB layout. For information supporting the board layout, see the following section.