4.

TCG PC Client Platform TPM Profile (PTP) Specification Summary

The Microchip TPM SPI communications protocol is implemented in accordance with the TCG PC Client

Platform TPM Profile (PTP) Specification 1.3. A complete description of the protocol is contained in the

specification available at www.trustedcomputinggroup.org. Application development and platform system

design should be based on the TCG PTP specification.

Note:  The TPM_DID_VID_x register contains Device ID (DID) and Vendor ID (VID) information. The VID

register contents are assigned by the TCG Administration and contain the hex string 01 01 01 04. In the

ATTPM20P, the DID register contains the device ID information and is set to 03 02 00 06. The

ATTPM20P contains hardware and firmware revision information for the TPM in the TPM_RID_x register.

ATTPM20P

TCG PC Client Platform TPM Profile (PTP) Specifica...

Datasheet Summary

DS40002082A-page 9