DE69126756D1 - Prüfbare RAM-Architektur in einem Mikroprozessor mit eingebettetem Cache-Speicher - Google Patents
Prüfbare RAM-Architektur in einem Mikroprozessor mit eingebettetem Cache-SpeicherInfo
- Publication number
- DE69126756D1 DE69126756D1 DE69126756T DE69126756T DE69126756D1 DE 69126756 D1 DE69126756 D1 DE 69126756D1 DE 69126756 T DE69126756 T DE 69126756T DE 69126756 T DE69126756 T DE 69126756T DE 69126756 D1 DE69126756 D1 DE 69126756D1
- Authority
- DE
- Germany
- Prior art keywords
- cache memory
- microprocessor
- testable
- embedded cache
- ram architecture
- 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.)
- Expired - Fee Related
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C11/00—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor
- G11C11/21—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements
- G11C11/34—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements using semiconductor devices
- G11C11/40—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements using semiconductor devices using transistors
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/22—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing
- G06F11/2205—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing using arrangements specific to the hardware being tested
- G06F11/2236—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing using arrangements specific to the hardware being tested to test CPU or processors
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/22—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing
- G06F11/26—Functional testing
- G06F11/273—Tester hardware, i.e. output processing circuits
- G06F11/2733—Test interface between tester and unit under test
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F12/00—Accessing, addressing or allocating within memory systems or architectures
- G06F12/02—Addressing or allocation; Relocation
- G06F12/08—Addressing or allocation; Relocation in hierarchically structured memory systems, e.g. virtual memory systems
- G06F12/0802—Addressing of a memory level in which the access to the desired data or data block requires associative addressing means, e.g. caches
-
- 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
- G11C29/18—Address generation devices; Devices for accessing memories, e.g. details of addressing circuits
- G11C29/24—Accessing extra cells, e.g. dummy cells or redundant cells
-
- 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
- G11C29/36—Data generation devices, e.g. data inverters
-
- 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
- G11C29/48—Arrangements in static stores specially adapted for testing by means external to the store, e.g. using direct memory access [DMA] or using auxiliary access paths
-
- 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
- G01R31/319—Tester hardware, i.e. output processing circuits
- G01R31/31903—Tester hardware, i.e. output processing circuits tester configuration
- G01R31/31905—Interface with the device under test [DUT], e.g. arrangements between the test head and the DUT, mechanical aspects, fixture
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/596,986 US5249281A (en) | 1990-10-12 | 1990-10-12 | Testable ram architecture in a microprocessor having embedded cache memory |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69126756D1 true DE69126756D1 (de) | 1997-08-14 |
DE69126756T2 DE69126756T2 (de) | 1998-01-29 |
Family
ID=24389573
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69126756T Expired - Fee Related DE69126756T2 (de) | 1990-10-12 | 1991-10-10 | Prüfbare RAM-Architektur in einem Mikroprozessor mit eingebettetem Cache-Speicher |
Country Status (5)
Country | Link |
---|---|
US (1) | US5249281A (de) |
EP (1) | EP0480421B1 (de) |
JP (1) | JPH05128000A (de) |
KR (1) | KR920008746A (de) |
DE (1) | DE69126756T2 (de) |
Families Citing this family (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6446164B1 (en) * | 1991-06-27 | 2002-09-03 | Integrated Device Technology, Inc. | Test mode accessing of an internal cache memory |
KR100267110B1 (ko) * | 1992-05-28 | 2000-11-01 | 리패치 | 마이크로프로세서에 상주하는 캐시 램을 테스트하는 방법 및 장치 |
US20030061545A1 (en) * | 1994-09-30 | 2003-03-27 | Chandrashekhar S. Patwardhan | Method and apparatus for providing test mode access to an instruction cache and microcode rom |
US5900014A (en) * | 1994-12-08 | 1999-05-04 | Ast Research, Inc. | External means of overriding and controlling cacheability attribute of selected CPU accesses to monitor instruction and data streams |
US5613087A (en) * | 1995-02-23 | 1997-03-18 | International Business Machines Corporation | Cache testing using a modified snoop cycle command |
US5592616A (en) * | 1995-06-07 | 1997-01-07 | Dell Usa, Lp | Method for performing efficient memory testing on large memory arrays using test code executed from cache memory |
US5729677A (en) * | 1995-07-31 | 1998-03-17 | Motorola Inc. | Method of testing a cache tag memory array |
US5768550A (en) * | 1995-11-21 | 1998-06-16 | International Business Machines Corporation | Bus interface logic system |
US5936900A (en) * | 1996-12-19 | 1999-08-10 | Texas Instruments Incorporated | Integrated circuit memory device having built-in self test circuit with monitor and tester modes |
US6115789A (en) * | 1997-04-28 | 2000-09-05 | International Business Machines Corporation | Method and system for determining which memory locations have been accessed in a self timed cache architecture |
US6185703B1 (en) * | 1997-10-10 | 2001-02-06 | Intel Corporation | Method and apparatus for direct access test of embedded memory |
US5974510A (en) * | 1997-10-31 | 1999-10-26 | Advanced Micro Devices, Inc. | Method for testing the non-cacheable region functioning of a cache memory controller |
US6240532B1 (en) | 1998-04-06 | 2001-05-29 | Rise Technology Company | Programmable hit and write policy for cache memory test |
US6067262A (en) * | 1998-12-11 | 2000-05-23 | Lsi Logic Corporation | Redundancy analysis for embedded memories with built-in self test and built-in self repair |
US6367042B1 (en) | 1998-12-11 | 2002-04-02 | Lsi Logic Corporation | Testing methodology for embedded memories using built-in self repair and identification circuitry |
US6366990B1 (en) * | 1998-12-14 | 2002-04-02 | Intel Corporation | Method and apparatus for software controlled timing of embedded memory |
US6651202B1 (en) | 1999-01-26 | 2003-11-18 | Lsi Logic Corporation | Built-in self repair circuitry utilizing permanent record of defects |
US6421798B1 (en) | 1999-07-14 | 2002-07-16 | Computer Service Technology, Inc. | Chipset-based memory testing for hot-pluggable memory |
US6732234B1 (en) * | 2000-08-07 | 2004-05-04 | Broadcom Corporation | Direct access mode for a cache |
US7007157B2 (en) * | 2001-10-30 | 2006-02-28 | Microsoft Corporation | Network interface sharing methods and apparatuses that support kernel mode data traffic and user mode data traffic |
US7171596B2 (en) | 2002-09-11 | 2007-01-30 | Infineon Technologies Ag | Circuit and method for testing embedded DRAM circuits through direct access mode |
JP5267166B2 (ja) * | 2009-01-30 | 2013-08-21 | ソニー株式会社 | インターフェース装置、演算処理装置、インターフェース生成装置、および回路生成装置 |
US8572449B1 (en) * | 2010-12-20 | 2013-10-29 | Qualcomm Incorporated | Integrated functional testing mechanism for integrated circuits |
CN116166606B (zh) * | 2023-04-21 | 2023-07-14 | 无锡国芯微高新技术有限公司 | 基于共享紧耦合存储器的高速缓存控制架构 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4161024A (en) * | 1977-12-22 | 1979-07-10 | Honeywell Information Systems Inc. | Private cache-to-CPU interface in a bus oriented data processing system |
US4575792A (en) * | 1982-03-31 | 1986-03-11 | Honeywell Information Systems Inc. | Shared interface apparatus for testing the memory sections of a cache unit |
US4686621A (en) * | 1983-06-30 | 1987-08-11 | Honeywell Information Systems Inc. | Test apparatus for testing a multilevel cache system with graceful degradation capability |
US4562536A (en) * | 1983-06-30 | 1985-12-31 | Honeywell Information Systems Inc. | Directory test error mode control apparatus |
JPH0630075B2 (ja) * | 1984-08-31 | 1994-04-20 | 株式会社日立製作所 | キャッシュメモリを有するデータ処理装置 |
US4744049A (en) * | 1984-10-15 | 1988-05-10 | Motorola, Inc. | Microcode testing of a cache in a data processor |
JP2583525B2 (ja) * | 1987-09-30 | 1997-02-19 | 健 坂村 | データ処理装置 |
US4882673A (en) * | 1987-10-02 | 1989-11-21 | Advanced Micro Devices, Inc. | Method and apparatus for testing an integrated circuit including a microprocessor and an instruction cache |
US4937781A (en) * | 1988-05-13 | 1990-06-26 | Dallas Semiconductor Corporation | Dual port ram with arbitration status register |
US4945512A (en) * | 1988-09-07 | 1990-07-31 | Unisys Corporation | High-speed partitioned set associative cache memory |
-
1990
- 1990-10-12 US US07/596,986 patent/US5249281A/en not_active Expired - Fee Related
-
1991
- 1991-10-09 JP JP3290712A patent/JPH05128000A/ja active Pending
- 1991-10-10 DE DE69126756T patent/DE69126756T2/de not_active Expired - Fee Related
- 1991-10-10 EP EP91117293A patent/EP0480421B1/de not_active Expired - Lifetime
- 1991-10-12 KR KR1019910017947A patent/KR920008746A/ko not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
US5249281A (en) | 1993-09-28 |
JPH05128000A (ja) | 1993-05-25 |
EP0480421A2 (de) | 1992-04-15 |
DE69126756T2 (de) | 1998-01-29 |
EP0480421B1 (de) | 1997-07-09 |
EP0480421A3 (en) | 1993-04-21 |
KR920008746A (ko) | 1992-05-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |