AT97SC3204 LPC Interface - Summary

Atmel AT97SC3204
Trusted Platform Module LPC Interface
SUMMARY DATASHEET
Features
 Fully compliant to the Trusted Computing Group (TCG) Trusted Platform Module
(TPM) version 1.2 specification
 Compliant with TCG PC client-specific TPM Interface Specification (TIS) version 1.2
 Single-chip, turnkey solution
 Hardware asymmetric crypto engine
 Atmel® AVR® RISC microprocessor
 Internal EEPROM storage for RSA keys
 33MHz Low Pin Count (LPC) bus for easy PC interface
 Secure hardware and firmware design and chip layout
 Internal, high-quality Random Number Generator (RNG) – FIPS 140-2 compliant
 NV storage space for 1756 bytes of user defined data
 3.3V supply voltage
 28-lead thin TSSOP, 28-lead wide TSSOP, or 40-pad QFN packages
 Offered in both commercial (0 to 70°C) and industrial (-40 to +85°C)
temperature ranges
Description
The Atmel AT97SC3204 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 (TCG) specification for Trusted Platform Modules (TPM).
The TPM includes a cryptographic accelerator capable of computing a 2048-bit RSA
signature in 200ms and a 1024-bit RSA signature in 40ms. Performance of the SHA-1
accelerator is 20μs per 64-byte block.
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.
This is a summary document.
The complete document is
available under NDA. For more
information, please contact
your local Atmel sales office.
Atmel-5295ES-TPM-AT97SC3204-LPC-Interface-Datasheet-Summary-032013
Pin Configurations and Pinouts
Table 1-1.
Pin Configurations
Pin name
Function
VCC
3.3V Supply Voltage
SB3V
Standby 3.3V Supply Voltage
GND
Ground
LRESET#
PCI Reset Input Active Low
LAD0
LPC Command, Address, Data Line Input/Output
LAD1
LPC Command, Address, Data Line Input/Output
LAD2
LPC Command, Address, Data Line Input/Output
LAD3
LPC Command, Address, Data Line Input/Output
LCLK
33MHz PCI Clock Input
LFRAME#
LPC FRAME Input
CLKRUN#
PCI Clock Run Input/Output
LPCPD#
LPC Power-Down Input
SERIRQ
Serialized Interrupt Request Input/Output
GPIO-Express-00
GPIO assigned to TPM_NV_INDEX_GPIO_00
TestI
Test Input (Disabled)
TestBI
Test Input (Disabled)
ATest
Atmel Test Pin
NC
No Connect
NBO
Not Bounded Out
Pinouts
31 NBO
32 NBO
33 NBO
34 NBO
35 NBO
36 NBO
39 ATest
40 ATest
28-pin TSSOP
6.1mm x 9.7mm Body
0.65mm Pitch
37 SERIRQ
40-pin QFN
6.0mm x 6.0mm Body
0.50mm Pitch
28-pin TSSOP
4.4mm x 9.7mm Body
0.65mm Pitch
38 LPCPD#
Table 1-2.
SB3V
3
28 VCC
GND
4
25 GND
GPIO-Express-00
4
27 LAD1
SB3V
5
24 VCC
NC
5
26 LFRAME#
GPIO-Express-00
6
23 LAD1
TestI
6
25 LCLK
NC
7
22 LFRAME#
TestBI
7
24 LAD2
TestI
8
21 LCLK
VCC
8
23 VCC
TestBI
9
20 LAD2
GND
9
22 GND
VCC 10
GND 11
19 VCC
NBO 10
21 LAD3
NBO 12
NBO 13
17 LAD3
NBO 14
15 CLKRUN#
16 LRESET#
30 LAD0
LRESET# 20
18 GND
CLKRUN# 19
ATest
26 LAD0
NBO 18
29 GND
3
NBO 17
ATest
2
NBO 16
1
GND
NBO 15
ATest
27 SERIRQ
NBO 14
28 LPCPD#
2
NBO 13
1
NBO 12
ATest
NBO 11
1.
Atmel AT97SC3204 LPC Interface [SUMMARY DATASHEET]
Atmel-5295ES-TPM-AT97SC3204-LPC-Interface-Datasheet-Summary-032013
2
2.
Block Diagram
GPIO-Express-00
ROM
Program
EEPROM
Program
33MHz
LPC
Interface
AVR
8-bit RISC
CPU
SRAM
EEPROM
Data
GPIO
RNG
CRYPTO
Engine
Timer
Physical
Security
Circuitry
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.
Atmel AT97SC3204 LPC Interface [SUMMARY DATASHEET]
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3
3.
Ordering Information
Atmel Ordering Code
AT97SC3204
(1)
AT97SC3204
(1)
Note:
1.
Package
Operating Range
28X1 (28-pin thin TSSOP)
40ML1 (40-pin QFN)
Lead-free, RoHS
Commercial (0°C to 70°C)
Industrial (-40°C to 85°C)
Please see the AT97SC3204 datasheet addendum for the complete catalog number ordering code.
Package Type
28X1
40ML1
28-lead, 4.4mm body width, Plastic Thin Shrink Small Outline (thin TSSOP)
40-pad 6.0 x 6.0x0.9mm body, 0.50mm pitch, Very-thin Quad Flat No Lead (VQFN)
Atmel AT97SC3204 LPC Interface [SUMMARY DATASHEET]
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4
4.
Package Drawings
4.1
28X1 — 28-lead Thin TSSOP
TOP VIEW
DETAIL 'A'
END VIEW
C
(12° REF)
D
B
1
14
S
E
E1
R1
H
R
C
L
(0°~8°)
L
d 0.20 C B A
28
15
e
2X N/2 TIPS
A2
A
0.25
SEE DETAIL "A"
A
(1.00 REF)
D
C
(12° REF)
d 0.10 C
28X b
A1
j n 0.10 m C B A
SEATING
PLANE
SIDE VIEW
COMMON DIMENSIONS
(UNIT OF MEASURE=MM)
SYMBOL
Note:
1. Refer to JEDEC drawing MO-153,variation AE
2. Dimension D does not include mold flash, protrusions or gate burrs. Mold
flash,protrusions or gate burrs shall not exceed 0.15mm per end. Dimension E1
does not include interlead flash or protrusion. Interlead flash or protrusion
shall not exceed 0.25mm per side.
3. Dimension "b" does not include dambar protrusion. Allowable dambar protrusion
shall be 0.08mm total in excess of the "b" dimension at maximum material
condition. Minimum space between protrusion and adjacent lead is 0.07mm.
MIN
NOM
MAX
NOTE
A
-
-
1.10
A1
0.05
-
0.15
A2
0.85
0.90
0.95
b
c
0.19
-
0.30
0.09
-
0.20
D
9.60
9.70
9.80
1
4.50
1
6.40BSC
E
E1
2
4.30
e
4.40
0.65 BSC
L
0.45
0.60
0.75
R
0.09
-
-
R1
0.09
-
-
S
0.20
-
-
7/8/2011
Package Drawing Contact:
[email protected]
TITLE
GPC
DRAWING NO.
REV.
28X1, 28-lead, 4.4mm Body Width, Plastic Thin
Shrink Small Outline Package (TSSOP)
TFL
28X1
A
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40ML1 — 40-pad VQFN
0.05 C
0.10 C
A
2X
0.10 C A
D
A
A1
2X
N
0.10 C B
A2
A3
1
Pin 1 Indicator
2
3
E
Top View
L
B
0
C
Side View
D2
COMMON DIMENSIONS
(Unit of Measure = mm)
E2
SYMBOL
3
2
b
1
e
MIN
D
6.00 BSC
6.00 BSC
D2
4.10
4.30
4.40
4.10
4.30
4.40
-
0.85
0.90
A1
0.0
0.01
0.05
A2
-
0.65
0.70
L
Bottom View
NOTE
0.20 REF
0.30
e
b
Notes:
MAX
E2
A3
PIN1 ID
NOM
E
A
N
4.2
0.40
0.50
0.50 BSC
0.18
0.23
0.30
2
1. This drawing is for general information only. Refer to JEDEC Drawing MO-220, Variation WJJD-2, for proper dimensions,
tolerances, datums, etc.
2. Dimension b applies to metallized terminal and is measured between 0.15 mm and 0.30 mm from the terminal tip. If the
terminal has the optional radius on the other end of the terminal, the dimension should not be measured in that radius area.
09/23/11
Package Drawing Contact:
[email protected]
TITLE
40ML1, 40-pad 6.0 x 6.0x0.9 mm Body, 0.50 mm
pitch, Very-Thin Quad Flat No Lead Package
(VQFN) Punched
GPC
DRAWING NO.
ZJI
40ML1
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REV.
D
6
5.
Revision History
Doc. Rev.
Date
5295ES
03/2013
Comments
Removed bullet from features: 2048-bit RSA® sign in 200ms.
Updated footers and disclaimer page.
Changed GPIO6 to GPIO-Express-00.
5295DS
12/2012
Updated package drawings 28A3 and 40ML1.
Updated package drawing 28A1 to 28X1.
Updated template and Atmel logos.
5295CS
03/2011
Corrected header and footers.
5295BS
10/2010
Added Industrial Grade support detail.
5295AS
01/2008
Initial document release.
Atmel AT97SC3204 LPC Interface [SUMMARY DATASHEET]
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7
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