[FAQ] AM625 / AM623 / AM625SIP / AM625-Q1 / AM620-Q1 Custom board hardware design - Schematic Review Checklist

HI Board designers, 

Wanted to highlight that the below schematics design guide now has checklist included for each sections.

Once customer is done with the design following the guide, customer should be able to verify the same with the checklist.

Schematic Review Checklist for AM62x processor family (Recommended)

PDF (The users guide has been updated and released recently) 

https://www.ti.com/lit/pdf/sprado3

AM625, AM623, AM620-Q1, AM625-Q1, AM625SIP Processor Family Schematic, Design Guidelines and Review Checklist (Rev. B)

Excel Version

https://e2e.ti.com/support/processors-group/processors/f/processors-forum/1457736/faq-am625-am623-am62a-am62p-am62d-q1-am64x-am243x-design-recommendations-custom-board-hardware-design---schematics-review-checklists

Additional information:

User's Guide Usage Guidelines
The user's guide AM62x (AM625, AM623, AM625SIP, AM620-Q1, AM625-Q1) processor family specific,
Schematic Design Guidelines and Schematic Review Checklist includes schematic design guidelines that can be
used by custom board designers during the custom board schematic design phase. Schematic review checklist
is included at the end of each section and can be used by custom board designers to review the custom board
schematic once the design is complete and before start of the layout.

Custom Board Schematics Design Guidelines - References Used in the User's Guide
The user's guide includes schematic design guidelines and schematic review checklist that can be used by
custom board designers during custom board schematics design for the selected processor and the peripherals
implemented (on-board or carrier (or add-on)) including memory (DDR, flash), power, communication interfaces,
IOs and other circuit sections.
In the user's guide, reference to Processor implies the selected AM62x processor OPN and references to the
Attached devices implies the external (on-board or carrier (or add-on)) peripherals that are interfaced to the
processor (based on the target end equipment being designed and the application use case).

Processor Family Specific User's Guide
The user's guide covers AM625, AM623, AM620-Q1, AM625-Q1 and AM625SIP processors (GPNs). Each of the processor GPN can have multiple OPNs. The user's guide includes schematic design guidelines and schematic review checklist that can be used during custom board design. Processors family specific user's guide provides processor focused guidelines and checklist and helps custom board designers to use when designing the board for a specific processor family. The user's guide is simpler and is easy to use for the
chosen processor and processor family (AM62x in this case).

Schematic Design Guidelines
The user's guide provides schematic design guidelines that can be used during custom board schematic design
phase to implement the circuit connections between the processor and peripherals supported by the selected
processor. Links to relevant FAQs have been added (as part of the guideline in each section) in addition to the
design guidelines. FAQs (links added) provide additional information on a specific peripheral or interface topic
including description and details on the implementation/use case and learning from customer interactions.
The recommendation is for custom board designers to follow the schematic design guidelines to minimize design
errors that can affect board functionality, performance and to optimize the custom board design/build/test efforts.

Schematic Review Checklist
Schematic review checklist that can be used by custom board designers to review the custom board schematic
covering specific peripherals have been added at the end of each section, sub section of the user's guide.
The general recommendations, processor power and processor peripherals sections, sub sections described in
the user's guide includes the checklist at the end. The schematic review checklist is categorized as General,
Schematic Review, and Additional. Custom board designers can use the schematic review checklist to perform
self-review of the custom board schematic design. Self-review minimizes possible schematics errors that can
result in functional or performance related concerns and also reduced the reviewers efforts during formal
reviews (internal or external). Schematic reviews minimizes the efforts required during custom board bring-up or
performance testing resulting in increased board design quality and adherence to the planned timeline.

Custom Board Schematic Design Implementation Checklist Sub-Sections Description
The schematic implementation review checklist includes 3 sub-sections:
General:
The general section lists (summarizes) the circuit implementations in bullets that are required (expected) to
support the functionality for the peripheral section described above the checklist section (design guidelines
section). The section also include considerations for when the section is interfaced or connected to another
section to implement the required peripheral or module functionality (can require circuit implementation). The
recommendation is to review and close the list of implementation checks provided before continuing with the
schematic review.

Schematic Review:
The schematic review section lists (summarizes) the circuit implementations in bullets that are required
(expected) to be added by the custom board designers for the circuit section to support the functionality including
the values, connections and other implementations to be followed for implementing the peripheral or module.
The recommendation is to compare for the custom board schematic design implementation with the schematic
checklist to make sure the implementation follows the design guidelines before the start of the layout.

Additional:
The additional section lists (details) the implementation and use case description in bullets that can be used
by custom board designers along with the schematic review section to understand the circuit implementation
rationale (need to implement) before considering optimizing the circuit design.

Regards,

Sreenivasa

HI Board designers, 

Inputs related to Design guide for processor families:

The below referenced user guide includes design guidelines for Am62x, Am62A and Am62P. The user's guide can be used as a reference to understand the differences in the supported peripherals and instances. 

Schematic Design and Review Checklist combined for sitara processor families
www.ti.com/.../sprad21
AM62x, AM62Ax, AM62D-Q1 and AM62Px Processor Family Schematic, Design Guidelines and Review Checklist (Rev. I)

User's Guide For Processor Families
The user's guide covers AM62x (AM625, AM623, AM620-Q1, AM625-Q1, AM625SIP), AM62Ax (AM62A7,
AM62A7-Q1, AM62A3, AM62A3-Q1, AM62A1-Q1), AM62D-Q1 and AM62Px (AM62P, AM62P-Q1) processor
families.
The user's guide includes schematic design guidelines t that can be used during custom board design. The user's guide for processor families helps the custom board designers to understand implementation differences when migrating from one processor family to another processor family or from one processor package to another package.

Schematic Design Guidelines
The user's guide provides schematic design guidelines that can be used during custom board schematic design
phase to implement the circuit connections between the processor and peripherals supported by the selected
processor. Links to relevant FAQs have been added (as part of the guideline in each section) in addition to the
design guidelines. FAQs (links added) provide additional information on a specific peripheral or interface topic
including description and details on the implementation/use case and learning from customer interactions.
The recommendation is for custom board designers to follow the schematic design guidelines to minimize design
errors that can affect board functionality, performance and to optimize the custom board design/build/test efforts.

Schematic Review Checklist

The user guide links to processor family specific user;s guide for schematic review checklist.

Regards,

Sreenivasa

Hi Board Designers,

Recommended References for review and design of custom board
AM62X
TI.com product page
www.ti.com/.../AM625
www.ti.com/.../AM623
www.ti.com/.../AM620-Q1
www.ti.com/.../AM625-Q1

Collaterals
AM62x Sitara Processors datasheet (Rev. B)
www.ti.com/.../sprsp58

AM62x
Processors Silicon Revision 1.0 Texas Instruments Families of Products spruiv7b
www.ti.com/.../spruiv7

AM625SIP – AM6254 Sitara Processor with Integrated LPDDR4 SDRAM datasheet (Rev. A)
www.ti.com/.../sprsp98

AM62x Sitara Errata (Rev. F)
www.ti.com/.../sprz487
Hardware Design Considerations
www.ti.com/.../sprad05
Hardware Design Considerations for Custom Board Using AM625, AM623, AM620-Q1, AM625-Q1, AM625SIP Processor (Rev. E)
DDR Board Design and Layout Guidelines
www.ti.com/.../sprad06
Schematic Design and Review Checklist for AM62x processor family
www.ti.com/.../sprado3
AM625, AM623, AM620-Q1, AM625-Q1, AM625SIP Processor Family Schematic, Design Guidelines and Review Checklist (Rev. B)
Schematic Design and Review Checklist combined for sitara processor families
www.ti.com/.../sprad21
AM62x, AM62Ax, AM62D-Q1 and AM62Px Processor Family Schematic, Design Guidelines and Review Checklist (Rev. I)

AM62x, AM62Ax, AM62Px, AM62Lx Spread-Spectrum Clocking
www.ti.com/.../spradk1
This document describes how EMI reduction is achieved when using the Display Parallel Interface (DPI) with
a 24-bit RGB data output to modulate the pixel clock frequency using SSC. The method applies to AM62x,
AM62Ax, AM62Px, and AM62Lx system-on-chip (SoC) designs.

Schematic review request (internal)
e2e.ti.com/.../4661966
AM62x Schematic checklist
e2e.ti.com/.../faq-am625-am623-am62a-am62p-am62d-q1-am64x-am243x-design-recommendations-custom-board-hardware-design---schematics-review-checklists

AM62x Schematic self-review
e2e.ti.com/.../faq-am625-am623-am625sip-am620-q1-am625-q1-design-recommendations-custom-board-hardware-design---custom-board-schematics-self-review
e2e.ti.com/.../faq-am625-am625-am623-am62a-am62p-am62d-q1-am64x-am243x-design-recommendations-custom-board-hardware-design---list-of-errors-observed-during-customer-schematics-review
e2e.ti.com/.../faq-am625-am623-am62a-design-recommendations-commonly-observed-errors-during-custom-board-hardware-design-sk-schematics-updates-for-design-update-note
e2e.ti.com/.../faq-am625-am623-am62a-am62p-am62d-q1-am64x-am243x-design-recommendations-custom-board-hardware-design---queries-related-to-soc-data-sheet-pin-attributes
e2e.ti.com/.../faq-am62x-am64x-custom-board-hardware-design-how-to-handle-used-unused-pins-peripherals-e-g-gpios-serdes-usb-csi-mmc-emmc-sd-card-csi-oldi-dsi
e2e.ti.com/.../faq-am625-am623-am62l-am62a-am62d-q1-am62p-design-recommendations-commonly-observed-errors-during-custom-board-hardware-design-soc-peripherals-and-ios-connection-when-not-used

Frequently Asked Questions FAQs for master list of FAQs for all AM6 processor families and AM62x processor family
e2e.ti.com/.../faq-custom-board-hardware-design---master-complete-list-of-faqs-for-all-sitara-processor-am62x-am64x-am243x-am335x-families
e2e.ti.com/.../faq-am625-am623-am625sip-am625-q1-am620-q1-custom-board-hardware-design---faqs-related-to-processor-collaterals-functioning-peripherals-interface-and-starter-kit

Frequently Asked Questions FAQs for schematics D-Note, R-Note design notes
e2e.ti.com/.../faq-am625-am623-custom-board-hardware-design---design-and-review-notes-for-reuse-of-sk-am62b-schematics
e2e.ti.com/.../faq-am625-am623-custom-board-hardware-design---design-and-review-notes-for-reuse-of-sk-am62b-p1-schematics
e2e.ti.com/.../faq-am625-q1-am620-q1-custom-board-hardware-design---design-and-review-notes-for-reuse-of-sk-am62-lp-schematics
e2e.ti.com/.../faq-am625sip---custom-board-hardware-design---design-and-review-notes-for-reuse-of-sk-am62-sip-schematics

Downloadable design files on TI.com list for SK
SK-AM62B-P1 Design Package Content Overview (Rev. A)
www.ti.com/.../sprt777
www.ti.com/.../spar001
SK-AM62-LP Design Package Content Overview
www.ti.com/.../sprt778
www.ti.com/.../sprr471
SK-AM62B Design Package Folder and Files List
www.ti.com/.../sprt784
www.ti.com/.../sprr481
SK-AM62-SIP Design Package Folder and Files List
www.ti.com/.../sprt785
www.ti.com/.../SK-AM62-SIP

Regards,

Sreenivasa