AM68A: Trustzone , DDR4 and eMMC support

Poh Kok Keng

Part Number: AM68A
Other Parts Discussed in Thread: AM68

Dear Sir/Madam,

I am novice to Jacinto product, after going thorugh the datasheet and technical ref guide. I am not sure is my intepretation below is correct. Can you help to enlighten me?

For AM68A - AM68A92ATGGHAALZR

it does have Arm TrustZone on M5F core portion, how about the A72, does it have Trustzone support?
It can support 2 x 32Bit x 8GB of DDR4 right? (i.e. total 64b, 8GB)
It can support 2 x 32GB eMMC, i.e. 64GB right?

Best Rgds, kpk

over 1 year ago

0 Praveen Rao over 1 year ago

TI__Mastermind 47923 points

Hello,

We suggest looking into the AM68 user guide which has all the details. -->

PDF version: https://www.ti.com/lit/zip/spruj28

Online HTML version: https://www.ti.com/document-viewer/lit/html/spruj28

Let us know if any of your query is not answered.

Thanks.

0 Alex Looi over 1 year ago in reply to Praveen Rao

Prodigy 20 points

Hi Praveen,

I could not find any trustzone information in the document. I could have missed it out.

Can you point me to the section that mentioned about this? Thanks.

Regards,

Alex.

0 Praveen Rao over 1 year ago in reply to Alex Looi

TI__Mastermind 47923 points

Hello Alex,

In the AM68 user guide Chapter 6.1 details the "Dual-A72 MPU Subsystem" which is the dual-core Arm® Cortex®-A72 MPU core.

Note that the feature section calls out that the A72 CPU is "Full Armv8-A architecture compliance" including the all the exception levels EL0-3, so this implicitly calls for ARM trustzone security support as explained the Arm® Cortex®-A72 technical reference manual.

You can further read details here https://developer.arm.com/Processors/Cortex-A72

Thanks.

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AM68A: Trustzone , DDR4 and eMMC support