GB2399890B - Multiple scan chains with pin sharing - Google Patents
Multiple scan chains with pin sharingInfo
- Publication number
- GB2399890B GB2399890B GB0411444A GB0411444A GB2399890B GB 2399890 B GB2399890 B GB 2399890B GB 0411444 A GB0411444 A GB 0411444A GB 0411444 A GB0411444 A GB 0411444A GB 2399890 B GB2399890 B GB 2399890B
- Authority
- GB
- United Kingdom
- Prior art keywords
- scan chains
- multiple scan
- pin sharing
- sharing
- pin
- 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 - Lifetime
Links
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
- G01R31/318558—Addressing or selecting of subparts of the device under 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
- 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
-
- 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
- G01R31/318552—Clock circuits details
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Tests Of Electronic Circuits (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/136,670 US7249298B2 (en) | 2002-04-30 | 2002-04-30 | Multiple scan chains with pin sharing |
GB0216628A GB2388199B (en) | 2002-04-30 | 2002-07-17 | Multiple scan chains with pin sharing |
Publications (3)
Publication Number | Publication Date |
---|---|
GB0411444D0 GB0411444D0 (en) | 2004-06-23 |
GB2399890A GB2399890A (en) | 2004-09-29 |
GB2399890B true GB2399890B (en) | 2005-06-15 |
Family
ID=32929381
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB0411444A Expired - Lifetime GB2399890B (en) | 2002-04-30 | 2002-07-17 | Multiple scan chains with pin sharing |
GB0411442A Expired - Lifetime GB2399889B (en) | 2002-04-30 | 2002-07-17 | Method for loading scan chains |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB0411442A Expired - Lifetime GB2399889B (en) | 2002-04-30 | 2002-07-17 | Method for loading scan chains |
Country Status (1)
Country | Link |
---|---|
GB (2) | GB2399890B (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2121997A (en) * | 1982-06-11 | 1984-01-04 | Int Computers Ltd | Testing modular data processing systems |
US4730316A (en) * | 1985-07-25 | 1988-03-08 | International Computers Limited | Digital integrated circuits |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6070260A (en) * | 1998-09-17 | 2000-05-30 | Xilinx, Inc. | Test methodology based on multiple skewed scan clocks |
-
2002
- 2002-07-17 GB GB0411444A patent/GB2399890B/en not_active Expired - Lifetime
- 2002-07-17 GB GB0411442A patent/GB2399889B/en not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2121997A (en) * | 1982-06-11 | 1984-01-04 | Int Computers Ltd | Testing modular data processing systems |
US4730316A (en) * | 1985-07-25 | 1988-03-08 | International Computers Limited | Digital integrated circuits |
Also Published As
Publication number | Publication date |
---|---|
GB0411442D0 (en) | 2004-06-23 |
GB0411444D0 (en) | 2004-06-23 |
GB2399889B (en) | 2005-05-11 |
GB2399889A (en) | 2004-09-29 |
GB2399890A (en) | 2004-09-29 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PE20 | Patent expired after termination of 20 years |
Expiry date: 20220716 |