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AM6546: How to connect TPM device

taka
Prodigy 40 points
Part Number: AM6546

I want to connect to a TPM device such as the SLM 9670 via the SPI interface.

but AM65xx has many SPI port.

which SPI port should I connect to?

Is there a reference manual for TPM connection?

  • 0
    TI__Genius 14680 points

    taka,

    The AM6546 device is available with standard secure boot security features if desired, so that may be an option for you rather than an external TPM. A high-level summary is included in the datasheet overview - https://www.ti.com/lit/ds/symlink/am6548.pdf under the Security bullet. Additional details are in the TRM in various sections on the Device Management and Security Control, boot flow, firewalls, etc - https://www.ti.com/lit/pdf/spruid7 .

    Have you reviewed the capabilities and still require an external TPM for your solution? If there are features within the external device that you require, connecting to one of the MCUSS SPI ports would likely make the most sense as it is local to the R5F CPUs.

    Best regards,

    Dave