AT97SC3201

Manufacturer Part NumberAT97SC3201
Descriptiona Fully Integrated Security Module Designed to be Integrated Into Computer Systems And Other Embedded Systems. This is a Summary Document. a Complete Document is Available Under Nda. For More Information, Please Contact Your Local Atmel Sales Office.
ManufacturerATMEL Corporation
AT97SC3201 datasheet
 
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Features
Full TCG/TCPA V1.1b Compatibility
Single Chip Turnkey Solution
Hardware Asymmetric Crypto Engine
2048 RSA Sign in 500 ms Using CRT
AVR 8-bit RISC Microprocessor
Internal EEPROM Storage for 10+ RSA Keys
33 MHz LPC (Low Pin Count) Bus for Easy PC Interface
Secure Hardware and Firmware Design and Chip Layout
True Random Number Generator (RNG)
Secure Real-time Clock Option
3.3V ±10% Supply Voltage
28-lead TSSOP Package
0–70°C Temperature Range
Description
The AT97SC3201 is a fully integrated security module designed to be integrated into
personal computers and other embedded systems. It implements version 1.1b of the
Trusted Computing Platform Alliance (TCPA) specification for Trusted Platform
Modules (TPM). This specification has been adopted by the Trusted Computing Group
(TCG).
The TPM includes a crypto accelerator capable of computing a 2048-bit RSA
signature in 500 ms and a 1024-bit RSA signature in 100 ms, both using CRT.
The chip communicates with the PC through the LPC interface, which runs at 33 MHz.
In addition, it supports SIRQ (for interrupts) and CLKRUN (to permit clock stopping).
Figure 1. AT97SC3201 Block Diagram
ROM
Program
33 MHz
LPC
Interface
IOA, IOB, IOC
GPIO
V
BB
RTC
32.768 kHz
Physical
Security
Circuitry
The chip includes a full hardware random number generator that is used for the
TCG/TCPA protocol and is also available to the system for any random numbers it
may need during normal operation.
EEPROM
Program
AVR
SRAM
8/16 Bit
CPU
EEPROM
Data
RNG
CRYPTO
Engine
Timer
Note: This is a summary document. A complete document is
available under NDA. For more information, please contact your
local Atmel sales office.
Trusted
Platform
Module
AT97SC3201
Summary
Rev. 2015BS-TPM–04/03
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