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AT97SC3204 Datasheet(PDF) 3 Page - ATMEL Corporation

Part No. AT97SC3204
Description  Trusted Platform Module LPC Interface
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Maker  ATMEL [ATMEL Corporation]
Homepage  http://www.atmel.com
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AT97SC3204 Datasheet(HTML) 3 Page - ATMEL Corporation

   
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Atmel AT97SC3204 LPC Interface [SUMMARY DATASHEET]
Atmel-5295ES-TPM-AT97SC3204-LPC-Interface-Datasheet-Summary-032013
2.
Block Diagram
The TPM includes a hardware random number generator, including a FIPS-approved Pseudo Random Number
Generator that is used for key generation and TCG protocol functions. The RNG is also available to the system to
generate random numbers that may be needed during normal operation.
The chip uses a dynamic internal memory management scheme to store multiple RSA keys. Other than the standard
TCG commands (TPM_FlushSpecific, TPM_Loadkey2), no system intervention is required to manage this internal key
cache.
The TPM is offered to OEM and ODM manufacturers as a turnkey solution, including the firmware integrated on the chip.
In addition, Atmel provides the necessary device driver software for integration into certain operating systems, along with
BIOS drivers. Atmel will also provide manufacturing support software for use by OEMs and ODMs during initialization
and verification of the TPM during board assembly.
Full documentation for TCG primitives can be found in the TCG TPM Main Specification, Parts 1 to 3, on the TCG Web
site located at https://www.trustedcomputinggroup.org. TPM features specific to PC Client platforms are specified in the
“TCG PC Client Specific TPM Interface Specification, Version 1.2”, also available on the TCG web site. Implementation
guidance for 32-bit PC platforms is outlined in the “TCG PC Client Specific Implementation Specification for Conventional
BIOS for TCG Version 1.2”, also available on the TCG website.
ROM
Program
EEPROM
Program
33MHz
LPC
Interface
GPIO
GPIO-Express-00
AVR
8-bit RISC
CPU
SRAM
EEPROM
Data
CRYPTO
Engine
RNG
Timer
Physical
Security
Circuitry


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