AM69AX datasheet(281/299 Pages) TI

281 / 299 page

10 Device Connection and Layout Fundamentals

10.1 Power Supply Decoupling and Bulk Capacitors

10.1.1 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.

10.2 External Oscillator

For more information about External Oscillators, see Clock Specifications.

10.3 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

10.4 Reset

The device incorporates four external reset pins (MCU_PORz, MCU_RESETz, PORz, and RESET_REQz) and

two reset status pins (MCU_RESETSTATz and RESETSTATz). These pins can be driven by an external power

good circuitry or Power Management IC (PMIC). MCU_PORz and Main PORz pins should be held active low

during the entire power-up phase, and until all power supplies as well as the HFOSC0 clock are stable.

All MCU domain resets act as master resets to the whole device, whereas Main domain resets only reset Main

domain (MCU domain is reset isolated from all Main domain resets).

10.5 Unused Pins

For more information about Unused Pins, see Pin Connectivity Requirements

10.6 Hardware Design Guide for JacintoTM 7 Devices

The Hardware Design Guide for JacintoTM 7 Devices document describes hardware system design

considerations for the JacintoTM 7 family of processors.This design guide is intended to be used as an aid

during the development of application hardware.

www.ti.com

AM69A

SPRSP92 – FEBRUARY 2023

Submit Document Feedback

281

Product Folder Links: AM69A

AM69AX Datasheet(PDF) 281 Page - Texas Instruments