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[FAQ] AM6442, AM6441, AM6422, AM6421, AM6412, AM6411, AM2434, AM2432, AM2431 Custom board hardware design - FAQs related to Processor collaterals, functioning, peripherals, interface and EVM/Starter kit

Kallikuppa Sreenivasa
Guru**** 193189 points
Other Parts Discussed in Thread: AM62D-Q1, TMDS64EVM, SK-AM64B, TPS65220, TPS65219, TMDS243EVM, LP-AM243

Hi Board designers, 

Refer FAQs listed below related to custom board design for AM64x and AM243x processor families that could be used along with other available design collaterals: 

Downloadable excel sheet for ease of use and better searchability: 3113.FAQs Master list_processor family wise.xlsx

To be able to quickly view and navigate all the published FAQs (including latest published FAQs) for all the TI processor families including custom board hardware design FAQs relevant to Sitara processor families (AM62x, AM62Ax, AM62Px, AM62D-Q1 and AM335x), a filter has been added.

The up-to-date published list of FAQs for all the TI processor families can be found at this link


To view the FAQs relevant to Sitara processor families released after the last sync, look for "custom board hardware design" phrase and published date in the listed FAQs. FAQs released before the sync date are are listed in the FAQ as a table. An excel that lists the FAQs published till the sync date is added for customers to download.

Last sync: 30th January 2025

Sl no Domain Topic FAQ Link on E2E
1 Links to Available Collaterals and Custom Board Design

Getting Started (Collaterals to Get started)

 [FAQ] AM6442, AM6441, AM6422, AM6421, AM6412, AM6411 Custom board hardware design – Collaterals to Get started
2 Reference during Schematic design and Schematics Review [FAQ] AM64x, AM243x, AM62x, AM62Ax, AM62Px, AM62D-Q1, AM62L Custom board hardware design - Collaterals for Reference during Schematic design and Schematics Review
3 Reusing TI EVM design files  [FAQ] AM6442, AM6441, AM6422, AM6421, AM6412, AM6411 Custom board hardware design - Reusing TI EVM design files
4 Information related to EVMs or SKs [FAQ] AM6442, AM6441, AM6422, AM6421, AM6412, AM6411 Custom board hardware design – information related to the processor evaluation modules and starter kits
5 DDR Subsystem and Device Register configuration [FAQ] AM62A7 or AM62A3 Custom board hardware design – Processor DDR Subsystem and Device Register configuration
6 Design and Review notes for Reuse of TMDS64EVM Schematics [FAQ] AM6442 / AM6441 / AM6422 / AM6421 / AM6412 / AM6411 Custom board hardware design - Design and Review notes for Reuse of TMDS64EVM Schematics
7 Design and review notes for Reuse of SK-AM64B Schematics [FAQ] AM6442 / AM6441 / AM6422 / AM6421 / AM6412 / AM6411 Custom board hardware design - Design and review notes for Reuse of SK-AM64B Schematics
8 Master (Complete) list of FAQs for all Sitara processor families [FAQ] Custom board hardware design - Master (Complete) list of FAQs for all Sitara processor (AM62x, AM64x, AM243x, AM335x) families
9 Queries related to SOC data sheet Pin Attributes [FAQ] AM625 / AM623 / AM62A / AM62P / AM62D-Q1 / AM64x / AM243x Design Recommendations / Custom board hardware design - Queries related to SOC data sheet Pin Attributes Excel format
10 Custom board schematics self-review [FAQ] AM6442, AM6441, AM6422, AM6421, AM6412, AM6411, AM243x Design Recommendations / Custom board hardware design - Custom board schematics self-review
11 Schematics review checklists [FAQ] AM625 / AM623 / AM62A / AM62P / AM62D-Q1 / AM64x / AM243x / AM335x Design Recommendations / Custom board hardware design - Schematics review checklists
12 Processor Functioning, Peripherals and Interface Bootmode implementation without isolation buffers [FAQ] AM625 / AM623 / AM644x / AM243x / AM62A / AM62P / AM62D-Q1 / AM62L - Bootmode implementation without isolation buffers
13 Bootmode implementation with isolation buffers used [FAQ] AM625 / AM623 / AM644x / AM243x / AM62A / AM62P / AM62D-Q1 / AM62L - Bootmode implementation with isolation buffers used
14 Ferrite (power supply filter) recommendations [FAQ] AM625 / AM623 / AM620-Q1 / AM625-Q1 / AM625SIP Custom board hardware design – Ferrite (power supply filter) recommendations for SoC supply rails
15 VPP  [FAQ] AM625 / AM623 / AM625SIP / AM625-Q1 / AM620-Q1 Custom board hardware design – Queries regarding VPP eFuse programming power supply selection and application
16 Power sequencing between SOC (Processor) and the Attached devices (Fail-safe) [FAQ] AM625 / AM623 / AM620-Q1 / AM625-Q1 / AM625SIP : Custom board hardware design – Power sequencing between SOC (Processor) and the Attached devices (Fail-safe)
17 Processor power-sequencing requirements for power-up and power-down [FAQ] AM625 / AM623 / AM620-Q1 / AM625-Q1 / AM625SIP : Custom board hardware design – Processor power-sequencing requirements for power-up and power-down
18 Crystal selection [FAQ] AM6442, AM6441, AM6422, AM6421, AM6412, AM6411 Custom board hardware design – Queries regarding Crystal selection
19 I2C [FAQ] AM6442, AM6441, AM6422, AM6421, AM6412, AM6411 Custom board hardware design – I2C interface
20 Internal pull registers of MCU_I2C0 and WKUP_I2C0 [FAQ] AM62A7-Q1: Internal pull configuration registers for MCU_I2C0 and WKUP_I2C0
21 USB2.0 [FAQ] AM6442, AM6441, AM6422, AM6421, AM6412, AM6411 Custom board hardware design – USB2.0 interface
22 Ethernet [FAQ] AM6442, AM6441, AM6422, AM6421, AM6412, AM6411 Custom board hardware design - Ethernet
23 SERDES [FAQ] AM6442, AM6441, AM6422, AM6421, AM6412, AM6411 Custom board hardware design - SERDES - SERDES0 interface
24 EXTINTn pin pullup connection [FAQ] AM625 / AM623 / AM625SIP / AM625-Q1 / AM620-Q1 / AM62L / AM62A7 / AM62A3 / AM62D-Q1 / AM62P / AM62P-Q1 Custom board hardware design – EXTINTn pin pullup connection
25 Design Recommendations / Commonly Observed Errors during Custom board hardware design – OSPI/QSPI MEMORY Interface [FAQ] AM625 / AM623 / AM62L / AM62A / AM62D-Q1 / AM62P Design Recommendations / Commonly Observed Errors during Custom board hardware design – OSPI/QSPI MEMORY Interface
26 Design Recommendations / Commonly Observed Errors during Custom board hardware design – SK /EVM Schematics updates for Design Update Note [FAQ] AM64x Common design Errors / Recommendations for Custom board hardware design – EVM / SK Schematics Design Update Note
27 Design Recommendations / Commonly Observed Errors during Custom board hardware design – eMMC MEMORY Interface [FAQ] AM625 / AM623 / AM62L / AM62A / AM62D-Q1 / AM62P Design Recommendations / Commonly Observed Errors during Custom board hardware design – eMMC MEMORY Interface
28 Design Recommendations / Commonly Observed Errors during Custom board hardware design – SOC peripherals and IOs connection when not used [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
29 How to handle Used / Unused Pins / Peripherals and add pullup or pulldown ? (e.g. GPIOs, SERDES, USB, CSI, MMC (eMMC, SD-card), CSI, OLDI, DSI, CAP_VDDSx, .....) [FAQ] AM62x, AM64x, AM243x, Custom board hardware design – How to handle Used / Unused Pins / Peripherals and add pullup or pulldown ? (e.g. GPIOs, SERDES, USB, CSI, MMC (eMMC, SD-card), CSI, OLDI, DSI, CAP_VDDSx, .....)
30 Board bring up tips for Sitara devices  [FAQ] Board bring up tips for Sitara devices (AM64x,AM243x, AM62x, AM62Ax, AM62Px)
31 JTAG [FAQ] AM625 / AM623 / AM625SIP / AM625-Q1 / AM620-Q1 / AM62L / AM62A7 / AM62A3 / AM62D-Q1 / AM62P / AM62P-Q1/ AM6442 / AM2432 Custom board hardware design – JTAG
32 POK VMON Design Recommendations [FAQ] AM625 / AM623 / AM62A / AM62D-Q1 / AM62P / AM64x / AM243x Design Recommendations / Custom board hardware design – POK VMON Voltage Monitor
33 CAP_VDDSx Design Recommendations [FAQ] AM625 / AM623 / AM62L / AM62A / AM62D-Q1 / AM62P / AM64x / AM243x Design Recommendations / Custom board hardware design – Queries related to CAP_VDDSx CAP_VDDS
34 SOC ROC Recommended Operating Condition [FAQ] AM625 / AM623 / AM62A / AM62D-Q1 / AM62P / AM62L / AM64x / AM243x Design Recommendations / Custom board hardware design – SOC ROC Recommended Operating Condition
35 Using DDR IBIS Models [FAQ] Using DDR IBIS Models for AM64x, AM62x, AM62Ax, AM62Px
36 S-parameter and IBIS model of IO-buffer [FAQ] AM625 / AM623 / AM625SIP / AM625-Q1 / AM620-Q1 / AM62A7 / AM62A3 / AM62D-Q1 / AM62L / AM62P / AM62P-Q1/ AM6442 / AM2432 Custom board hardware design – S-parameter and IBIS model of IO-buffer
37 SK and EVM EXT_REFCLK1 CLKOUT0 use case and configuration [FAQ] AM6422: SK and EVM EXT_REFCLK1 CLKOUT0 use case and configuration
38 IBIS Model Inquiry [FAQ] AM62A1-Q1: IBIS Model Inquiry
39 Starter kit / EVM variants (versions) and Key devices (components) list [FAQ] AM625 / AM623 / AM62A / AM62P / AM62D-Q1 / AM62L / AM64x / AM243x Design Recommendations / Custom board hardware design - Starter kit / EVM variants (versions) and Key devices (components) list
40 Dynamic Voltage Scaling [FAQ] AM625 / AM623 / AM62A / AM62P / AM62D-Q1 / AM62L / AM64x / AM243x Design Recommendations / Custom board hardware design – Dynamic Voltage Scaling
41 Package parameter description [FAQ] AM625: Package parameter description
42 Why is MMC1 powered by two different voltage supplies, VDDSHV0 and VDDSHV5? [FAQ] AM62A7: Why is MMC1 powered by two different voltage supplies, VDDSHV0 and VDDSHV5?
43 How to connect the pin net VDDSHV4, VDDSHV5, and VDDSHV6 if SD card is not used [FAQ] AM62A7-Q1: how to connect the pin net VDDSHV4, VDDSHV5, and VDDSHV6 if SD card is not used
44 Queries regarding crystal (MCU_OSC0) Start-up Time [FAQ] AM625 / AM623 / AM625SIP / AM625-Q1 / AM620-Q1 Custom board hardware design – Queries regarding crystal (MCU_OSC0) Start-up Time
45 SD card (MMC1) VDD power supply [FAQ] AM625: SD card (MMC1) VDD power supply
46 Connection recommendations for RSVD pins [FAQ] AM625 / AM623 / AM625SIP / AM625-Q1 / AM620-Q1 Custom board hardware design – Connection recommendations for RSVD pins
47 Common queries for PMIC TPS65219 and TPS65220 [FAQ] AM644x / AM642x / AM641x / AM243x Design Recommendations / Custom board hardware design – common queries for PMIC TPS65219 and TPS65220
48 FSI Fast Serial Interface [FAQ] AM6442, AM6441, AM6422, AM6421, AM6412, AM6411 Custom board hardware design - FSI Fast Serial Interface
49 List of errors observed during customer schematics review [FAQ] AM625 / AM623 / AM62A / AM62P / AM62D-Q1 / AM64x / AM243x Design Recommendations / Custom board hardware design - List of errors observed during customer schematics review
50 Drive Strength Configuration for SDIO and LVCMOS I/Os [FAQ] AM625 / AM623 / AM62A / AM62P / AM62D-Q1 / AM62L / AM64x / AM243x Design Recommendations / Custom board hardware design - Drive Strength Configuration for SDIO and LVCMOS I/Os
51 Queries related to Residual Voltage and Detection [FAQ] AM625 / AM623 / AM62A / AM62D-Q1 / AM62P / AM64x / AM243x Design Recommendations / Custom board hardware design – Queries related to Residual Voltage and Detection
52 Queries related to passive components values, tolerance, voltage rating [FAQ] AM625 / AM623 / AM62A / AM62P / AM64x / AM243x Design Recommendations / Custom board hardware design - Queries related to passive components values, tolerance, voltage rating
53 Queries related to SysConfig-PinMux IOSET and Voltage Conflict [FAQ] AM625 / AM623 / AM62A / AM62P / AM62D-Q1 / AM64x / AM243x Design Recommendations / Custom board hardware design - Queries related to SysConfig-PinMux IOSET and Voltage Conflict

Note: FAQs Highlighted with yellow color are generic and can be used for AM64x processor family

Regards,

Sreenivasa