DE602006009321D1 - Sicherung des Testmodus eines integrierten Schaltkreises - Google Patents

Sicherung des Testmodus eines integrierten Schaltkreises

Info

Publication number
DE602006009321D1
DE602006009321D1 DE602006009321T DE602006009321T DE602006009321D1 DE 602006009321 D1 DE602006009321 D1 DE 602006009321D1 DE 602006009321 T DE602006009321 T DE 602006009321T DE 602006009321 T DE602006009321 T DE 602006009321T DE 602006009321 D1 DE602006009321 D1 DE 602006009321D1
Authority
DE
Germany
Prior art keywords
securing
integrated circuit
test mode
test
mode
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
DE602006009321T
Other languages
English (en)
Inventor
Frederic Bancel
David Hely
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
STMicroelectronics SA
Original Assignee
STMicroelectronics SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by STMicroelectronics SA filed Critical STMicroelectronics SA
Publication of DE602006009321D1 publication Critical patent/DE602006009321D1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C7/00—Arrangements for writing information into, or reading information out from, a digital store
    • G11C7/24—Memory cell safety or protection circuits, e.g. arrangements for preventing inadvertent reading or writing; Status cells; Test cells
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/28—Testing of electronic circuits, e.g. by signal tracer
    • G01R31/317—Testing of digital circuits
    • G01R31/31719—Security aspects, e.g. preventing unauthorised access during test
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/28—Testing of electronic circuits, e.g. by signal tracer
    • G01R31/317—Testing of digital circuits
    • G01R31/3181—Functional testing
    • G01R31/3185—Reconfiguring for testing, e.g. LSSD, partitioning
    • G01R31/318533—Reconfiguring for testing, e.g. LSSD, partitioning using scanning techniques, e.g. LSSD, Boundary Scan, JTAG
    • G01R31/318536—Scan chain arrangements, e.g. connections, test bus, analog signals
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C29/00—Checking stores for correct operation ; Subsequent repair; Testing stores during standby or offline operation
    • G11C29/04—Detection or location of defective memory elements, e.g. cell constructio details, timing of test signals
    • G11C29/08—Functional testing, e.g. testing during refresh, power-on self testing [POST] or distributed testing
    • G11C29/12—Built-in arrangements for testing, e.g. built-in self testing [BIST] or interconnection details
    • G11C29/1201—Built-in arrangements for testing, e.g. built-in self testing [BIST] or interconnection details comprising I/O circuitry
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C29/00—Checking stores for correct operation ; Subsequent repair; Testing stores during standby or offline operation
    • G11C29/04—Detection or location of defective memory elements, e.g. cell constructio details, timing of test signals
    • G11C29/08—Functional testing, e.g. testing during refresh, power-on self testing [POST] or distributed testing
    • G11C29/12—Built-in arrangements for testing, e.g. built-in self testing [BIST] or interconnection details
    • G11C29/46—Test trigger logic

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Security & Cryptography (AREA)
  • Test And Diagnosis Of Digital Computers (AREA)
  • Tests Of Electronic Circuits (AREA)
  • Semiconductor Integrated Circuits (AREA)
  • Logic Circuits (AREA)
DE602006009321T 2005-02-08 2006-02-06 Sicherung des Testmodus eines integrierten Schaltkreises Active DE602006009321D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0501266A FR2881836A1 (fr) 2005-02-08 2005-02-08 Securisation du mode de test d'un circuit integre

Publications (1)

Publication Number Publication Date
DE602006009321D1 true DE602006009321D1 (de) 2009-11-05

Family

ID=34979849

Family Applications (1)

Application Number Title Priority Date Filing Date
DE602006009321T Active DE602006009321D1 (de) 2005-02-08 2006-02-06 Sicherung des Testmodus eines integrierten Schaltkreises

Country Status (4)

Country Link
US (1) US7484152B2 (de)
EP (1) EP1688753B1 (de)
DE (1) DE602006009321D1 (de)
FR (1) FR2881836A1 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110099439A1 (en) * 2009-10-23 2011-04-28 Infineon Technologies Ag Automatic diverse software generation for use in high integrity systems
US20110208948A1 (en) * 2010-02-23 2011-08-25 Infineon Technologies Ag Reading to and writing from peripherals with temporally separated redundant processor execution
US8516356B2 (en) 2010-07-20 2013-08-20 Infineon Technologies Ag Real-time error detection by inverse processing
FR3047348B1 (fr) * 2016-02-03 2018-07-27 STMicroelectronics (Alps) SAS Protection de donnees pour une memoire a autotest integre

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2627464B2 (ja) * 1990-03-29 1997-07-09 三菱電機株式会社 集積回路装置
EP0992809A1 (de) * 1998-09-28 2000-04-12 Siemens Aktiengesellschaft Schaltungsanordnung mit deaktivierbarem Scanpfad
US6191603B1 (en) * 1999-01-08 2001-02-20 Agilent Technologies Inc. Modular embedded test system for use in integrated circuits
US6499124B1 (en) * 1999-05-06 2002-12-24 Xilinx, Inc. Intest security circuit for boundary-scan architecture
US7231552B2 (en) * 2002-10-24 2007-06-12 Intel Corporation Method and apparatus for independent control of devices under test connected in parallel
TWI235599B (en) * 2004-01-16 2005-07-01 Sunplus Technology Co Ltd Device and method for transmitting hidden signal in boundary scan testing interface

Also Published As

Publication number Publication date
EP1688753B1 (de) 2009-09-23
US7484152B2 (en) 2009-01-27
FR2881836A1 (fr) 2006-08-11
EP1688753A1 (de) 2006-08-09
US20060195723A1 (en) 2006-08-31

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition