JPS55123744A - Logic integrated circuit easy to check - Google Patents
Logic integrated circuit easy to checkInfo
- Publication number
- JPS55123744A JPS55123744A JP3025479A JP3025479A JPS55123744A JP S55123744 A JPS55123744 A JP S55123744A JP 3025479 A JP3025479 A JP 3025479A JP 3025479 A JP3025479 A JP 3025479A JP S55123744 A JPS55123744 A JP S55123744A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- input signal
- check
- integrated circuit
- signal
- 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.)
- Granted
Links
Landscapes
- Tests Of Electronic Circuits (AREA)
- Test And Diagnosis Of Digital Computers (AREA)
Abstract
PURPOSE: To make it possible to observe easily the check result, by converting the input signal from the external to a false check input signal at a fault time and by leading this signal to a combinational logic circuit and by accumulating a part of the output in a feedback shift register.
CONSTITUTION: In the logic integrated circuit such as a programmable logic array incorporating FF, output signals of FF231...23N are applied to the input of logic circuit 1 to perform a normal circuit operation at a normal operation time. Meanwhile, at a fault time, input signal X applied from the external is inputted to input signal converting circuit 3 and is converted to false check input signal 106 and is led to circuit 1, and output signal Y of circuit 1 is accumulated in feedback shift register 2 constituted by FF231...23N. As a result, the check result can be observed easily.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3025479A JPS55123744A (en) | 1979-03-15 | 1979-03-15 | Logic integrated circuit easy to check |
DE19803009945 DE3009945A1 (en) | 1979-03-15 | 1980-03-14 | INTEGRATED, LOGICAL CIRCUIT WITH FUNCTIONAL TEST |
GB8008774A GB2049958B (en) | 1979-03-15 | 1980-03-14 | Integrated logic circuit adapted to performance tests |
FR8005815A FR2451672A1 (en) | 1979-03-15 | 1980-03-14 | INTEGRATED LOGIC CIRCUIT FOR TEST EXECUTION |
US06/130,687 US4366393A (en) | 1979-03-15 | 1980-03-17 | Integrated logic circuit adapted to performance tests |
GB08311223A GB2125170B (en) | 1979-03-15 | 1983-04-25 | Integrated logic circuit adapted to performance tests |
US06/545,608 US4536881A (en) | 1979-03-15 | 1983-10-27 | Integrated logic circuit adapted to performance tests |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3025479A JPS55123744A (en) | 1979-03-15 | 1979-03-15 | Logic integrated circuit easy to check |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55123744A true JPS55123744A (en) | 1980-09-24 |
JPS6153742B2 JPS6153742B2 (en) | 1986-11-19 |
Family
ID=12298566
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3025479A Granted JPS55123744A (en) | 1979-03-15 | 1979-03-15 | Logic integrated circuit easy to check |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55123744A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5988663A (en) * | 1982-11-08 | 1984-05-22 | インタ−ナシヨナル ビジネス マシ−ンズ コ−ポレ−シヨン | Self-test method |
JPS5988664A (en) * | 1982-11-08 | 1984-05-22 | インタ−ナシヨナル ビジネス マシ−ンズ コ−ポレ−シヨン | Self-test set |
WO2015008843A1 (en) * | 2013-07-17 | 2015-01-22 | 国立大学法人大分大学 | Scan bist lfsr seed generation method and memory medium for storing program for same |
-
1979
- 1979-03-15 JP JP3025479A patent/JPS55123744A/en active Granted
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5988663A (en) * | 1982-11-08 | 1984-05-22 | インタ−ナシヨナル ビジネス マシ−ンズ コ−ポレ−シヨン | Self-test method |
JPS5988664A (en) * | 1982-11-08 | 1984-05-22 | インタ−ナシヨナル ビジネス マシ−ンズ コ−ポレ−シヨン | Self-test set |
JPH0150873B2 (en) * | 1982-11-08 | 1989-10-31 | Intaanashonaru Bijinesu Mashiinzu Corp | |
JPH0150874B2 (en) * | 1982-11-08 | 1989-10-31 | Intaanashonaru Bijinesu Mashiinzu Corp | |
WO2015008843A1 (en) * | 2013-07-17 | 2015-01-22 | 国立大学法人大分大学 | Scan bist lfsr seed generation method and memory medium for storing program for same |
JP2015038473A (en) * | 2013-07-17 | 2015-02-26 | 国立大学法人 大分大学 | Method for generating lfsr seed of scan bist and storage medium for storing program therefor |
Also Published As
Publication number | Publication date |
---|---|
JPS6153742B2 (en) | 1986-11-19 |
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