1

Note: This is a summary document. A complete document is

available under NDA. For more information, please contact your

local Atmel sales office.

Features

Specification Version 1.2

Description

The AT97SC3203 Trusted Platform Module (TPM) is the latest offering from Atmel,

the world's leading choice for TPMs. Atmel, supplier of the world's first production

v1.1b TPM, the AT97SC3201, expands its success into v1.2 TPMs with the

AT97SC3203. Atmel continues to pace the development of TPM technology and

actively participates in the Trusted Computing Group (TCG) and contributes expertise

in the development of the TPM specifications. By utilizing Atmel TPMs, you can be

confident that you are implementing the most advanced TPMs available on the market

today and in the future.

The AT97SC3203 is a fully integrated security module designed to be integrated into

personal computers and other embedded systems. It implements version 1.2 of the

Trusted Computing Group specification for Trusted Platform Modules.

The TPM includes a cryptographic accelerator capable of computing a 2048-bit RSA

signature in 500 ms and a 1024-bit RSA signature in 100 ms. Performance of the

SHA-1 accelerator is L50 µs per 64-byte block. In most cases, TCG key generation

operations will be completed using a proprietary mechanism in less than 1 msec.

The chip communicates with the PC through the LPC interface. The TPM supports

SIRQ (for interrupts) and CLKRUN to permit clock stopping for power savings in

mobile computers.

Trusted

Platform

Module

AT97SC3203

Summary

Advance

Information

Rev. 5116AS-TPM–7/05