KR970071019A - 실시간 데이터 관측 방법 및 장치 - Google Patents

실시간 데이터 관측 방법 및 장치 Download PDF

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Publication number
KR970071019A
KR970071019A KR1019970012998A KR19970012998A KR970071019A KR 970071019 A KR970071019 A KR 970071019A KR 1019970012998 A KR1019970012998 A KR 1019970012998A KR 19970012998 A KR19970012998 A KR 19970012998A KR 970071019 A KR970071019 A KR 970071019A
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KR
South Korea
Prior art keywords
scan
cell
output
cells
real time
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Application number
KR1019970012998A
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English (en)
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KR100469875B1 (ko
Inventor
리 휫셀
Original Assignee
윌리엄 비. 켐플러
텍사스 인스트루먼츠 인코포레이티드
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Application filed by 윌리엄 비. 켐플러, 텍사스 인스트루먼츠 인코포레이티드 filed Critical 윌리엄 비. 켐플러
Publication of KR970071019A publication Critical patent/KR970071019A/ko
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Publication of KR100469875B1 publication Critical patent/KR100469875B1/ko

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Classifications

    • 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
    • G01R31/318541—Scan latches or cell details

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Tests Of Electronic Circuits (AREA)
  • Test And Diagnosis Of Digital Computers (AREA)
  • Semiconductor Integrated Circuits (AREA)
  • Investigating Or Analysing Biological Materials (AREA)

Abstract

스캔 셀 디자인은 셀의 데이터 입력(DI)이 셀의 스캔 메모리(MI)를 바이패스시키는 접속에 의해 셀의 스캔 출력(SO)에 직접 접속되는 바이패스 모드를 포함한다.

Description

실시간 데이터 관측 방법 및 장치
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제5도는 본 발명에 따른 예시적 내부 스캔 디자인들의 도면.

Claims (2)

  1. 스캔 셀에 있어서; 스캔 입력; 데이터 입력; 스캔 출력; 상기 스캔 출력과 상기 스캔 및 데이터 입력들과의 사이에 접속된 메모리 회로; 및 상기 스캔 입력을 상기 스캔 출력에 직접 접속시키기 위해 상기 메모리 회로를 바이패싱시키는 회로를 포함하는 것을 특징으로 하는 스캔 셀.
  2. 다수의 직력-접속된 스캔 셀들을 동작시키는 방법에 있어서; 상기 스캔 셀들 중에 하나를 관측 모드로 배치시키되, 평가될 타켓 회로에 접속되는 데이터 노드 또한 상기 하나의 스캔 셀의 스캔 출력에 직접 접속되는 단계; 및 상기 하나의 스캔 셀이 상기 관측 모드에 있는 동안에, 상기 스캔 셀들 중에 다른 하나를 바이패스 모드로 배치시키되, 그 스캔 출력이 스캔 입력에 직접 접속되는 단계를 포함하는 것을 특징으로 하는 다수의 직력-접속 스캔 셀 동작 방법.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019970012998A 1996-04-09 1997-04-09 실시간데이터관측방법및장치 KR100469875B1 (ko)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US62965496A 1996-04-09 1996-04-09
US08/629,654 1996-04-09
US08/643,444 US5710779A (en) 1996-04-09 1996-05-08 Real time data observation method and apparatus
US08/643,444 1996-08-08

Publications (2)

Publication Number Publication Date
KR970071019A true KR970071019A (ko) 1997-11-07
KR100469875B1 KR100469875B1 (ko) 2005-05-13

Family

ID=27090998

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019970012998A KR100469875B1 (ko) 1996-04-09 1997-04-09 실시간데이터관측방법및장치

Country Status (4)

Country Link
US (1) US5710779A (ko)
EP (1) EP0822497B1 (ko)
KR (1) KR100469875B1 (ko)
DE (1) DE69719416T2 (ko)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6260165B1 (en) 1996-10-18 2001-07-10 Texas Instruments Incorporated Accelerating scan test by re-using response data as stimulus data
US5958076A (en) * 1996-10-29 1999-09-28 Matsushita Electric Industrial Co., Ltd. Semiconductor integrated circuit
US5909453A (en) * 1997-07-02 1999-06-01 Xilinx, Inc. Lookahead structure for fast scan testing
US6408413B1 (en) 1998-02-18 2002-06-18 Texas Instruments Incorporated Hierarchical access of test access ports in embedded core integrated circuits
US6405335B1 (en) 1998-02-25 2002-06-11 Texas Instruments Incorporated Position independent testing of circuits
US6560734B1 (en) 1998-06-19 2003-05-06 Texas Instruments Incorporated IC with addressable test port
US6694467B2 (en) * 1999-06-24 2004-02-17 Texas Instruments Incorporated Low power testing of very large circuits
US6519729B1 (en) 1998-06-27 2003-02-11 Texas Instruments Incorporated Reduced power testing with equally divided scan paths
US6266801B1 (en) * 1998-09-15 2001-07-24 Adaptec, Inc. Boundary-scan cells with improved timing characteristics
JP2000214220A (ja) 1999-01-19 2000-08-04 Texas Instr Inc <Ti> オンチップモジュ―ルおよびオンチップモジュ―ル間の相互接続をテストするシステムおよび方法
JP2000275303A (ja) * 1999-03-23 2000-10-06 Mitsubishi Electric Corp バウンダリスキャンテスト方法及びバウンダリスキャンテスト装置
US7058862B2 (en) * 2000-05-26 2006-06-06 Texas Instruments Incorporated Selecting different 1149.1 TAP domains from update-IR state
GB9920077D0 (en) 1999-08-24 1999-10-27 Sgs Thomson Microelectronics Scan latch circuit
US6272657B1 (en) * 1999-10-19 2001-08-07 Atmel Corporation Apparatus and method for progammable parametric toggle testing of digital CMOS pads
US6728915B2 (en) 2000-01-10 2004-04-27 Texas Instruments Incorporated IC with shared scan cells selectively connected in scan path
US6769080B2 (en) 2000-03-09 2004-07-27 Texas Instruments Incorporated Scan circuit low power adapter with counter
DE60107531T2 (de) * 2001-02-19 2005-12-08 Lucent Technologies Inc. Abtastverzögerungskette zur Verzögerungsmessung
EP1286170A1 (en) * 2001-08-14 2003-02-26 Lucent Technologies Inc. Scan flip-flop with bypass of the memory cell of the flipflop
JP4684942B2 (ja) * 2006-05-10 2011-05-18 ルネサスエレクトロニクス株式会社 半導体装置及び観測用フリップフロップの配置方法
US9791505B1 (en) * 2016-04-29 2017-10-17 Texas Instruments Incorporated Full pad coverage boundary scan
EP4180825A1 (en) * 2021-11-12 2023-05-17 Samsung Electronics Co., Ltd. Test circuit using clock gating scheme to hold capture procedure and bypass mode, and integrated circuit including the same
US11959965B2 (en) 2021-11-12 2024-04-16 Samsung Electronics Co., Ltd. Test circuit using clock gating scheme to hold capture procedure and bypass mode, and integrated circuit including the same

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4872169A (en) * 1987-03-06 1989-10-03 Texas Instruments Incorporated Hierarchical scan selection
JP2676169B2 (ja) * 1989-12-27 1997-11-12 三菱電機株式会社 スキャンパス回路
JPH03252569A (ja) * 1990-02-26 1991-11-11 Advanced Micro Devicds Inc スキャンパス用レジスタ回路
JP2770617B2 (ja) * 1991-09-05 1998-07-02 日本電気株式会社 テスト回路
US5528610A (en) * 1992-04-30 1996-06-18 Hughes Aircraft Company Boundary test cell with self masking capability
JP2550837B2 (ja) * 1992-09-25 1996-11-06 日本電気株式会社 スキャンパスのテスト制御回路
US5477545A (en) * 1993-02-09 1995-12-19 Lsi Logic Corporation Method and apparatus for testing of core-cell based integrated circuits
US5513186A (en) * 1993-12-07 1996-04-30 Sun Microsystems, Inc. Method and apparatus for interconnect testing without speed degradation
US5550843A (en) * 1994-04-01 1996-08-27 Xilinx, Inc. Programmable scan chain testing structure and method
US5623502A (en) * 1994-07-15 1997-04-22 National Semiconductor Corporation Testing of electronic circuits which typically contain asynchronous digital circuitry
US5570375A (en) * 1995-05-10 1996-10-29 National Science Council Of R.O.C. IEEE Std. 1149.1 boundary scan circuit capable of built-in self-testing

Also Published As

Publication number Publication date
EP0822497A2 (en) 1998-02-04
DE69719416T2 (de) 2004-01-08
EP0822497B1 (en) 2003-03-05
KR100469875B1 (ko) 2005-05-13
US5710779A (en) 1998-01-20
DE69719416D1 (de) 2003-04-10
EP0822497A3 (en) 1998-05-06

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