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9.2 Device Connection and Layout Fundamentals

9.2.1 Power Supply Decoupling and Bulk Capacitors

9.2.1.1 Power Distribution Network Implementation Guidance

The Sitara Processor Power Distribution Networks: Implementation and Analysis provides guidance for

successful implementation of the power distribution network. This includes PCB stackup guidance as well as

guidance for optimizing the selection and placement of the decoupling capacitors. TI supports only designs that

follow the board design guidelines contained in the application report.

9.2.2 External Oscillator

For more information about External Oscillators, see the Clock Specifications section.

9.2.3 JTAG and EMU

Texas Instruments supports a variety of eXtended Development System (XDS) JTAG controllers with various

debug capabilities beyond only JTAG support. A summary of this information is available in the XDS Target

Connection Guide.

For more recommendations on EMU routing, see Emulation and Trace Headers Technical Reference Manual

9.2.4 Reset

Note

NOTE TO USERS:

The content of this section is UNDER DEVELOPMENT!

9.2.5 Unused Pins

For more information about Unused Pins, see the Pin Connectivity Requirements section.

9.2.6 Hardware Design Guide

Note

NOTE TO USERS:

The content of this section is UNDER DEVELOPMENT!

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AM6442, AM6441, AM6421, AM6412, AM6411

SPRSP56D – JANUARY 2021 – REVISED JULY 2022

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AM6421...ALV Folha de dados(PDF) 225 Page - Texas Instruments