JPS5449040A - Check unit for logic circuit - Google Patents
Check unit for logic circuitInfo
- Publication number
- JPS5449040A JPS5449040A JP11583877A JP11583877A JPS5449040A JP S5449040 A JPS5449040 A JP S5449040A JP 11583877 A JP11583877 A JP 11583877A JP 11583877 A JP11583877 A JP 11583877A JP S5449040 A JPS5449040 A JP S5449040A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- signal
- logic circuit
- difference
- time
- 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.)
- Pending
Links
Abstract
PURPOSE: To check a logic circuit strictly, by detecting not only the difference in output signal in a steady state between a checked logic circuit and reference logic circuit but also the difference in output signal in a transient state.
CONSTITUTION: The delay time of data set signal generating circuit 1 is set to the time when quality decision circuits 5 and 7 are reset by clock pulse C. Then, the delay time of sampling signal generating circuit 6 is set to a time much longer than that check input signal group 1 is set to data register 2 synchronizing with data set signal C1 and checked logic circuit 3 and reference logic circuit 4 answer to output signal 1' of circuit 2 and are steady. Next, circuit 5 detects the difference between signal groups X1 and X2 of circuits 3 and 4 at a time preset by signal C, and circuit 7 detected an undesired pulse signal generated transiently in the output of circuit 3
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11583877A JPS5449040A (en) | 1977-09-26 | 1977-09-26 | Check unit for logic circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11583877A JPS5449040A (en) | 1977-09-26 | 1977-09-26 | Check unit for logic circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5449040A true JPS5449040A (en) | 1979-04-18 |
Family
ID=14672361
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11583877A Pending JPS5449040A (en) | 1977-09-26 | 1977-09-26 | Check unit for logic circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5449040A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5933561A (en) * | 1982-08-20 | 1984-02-23 | Fujitsu Ltd | Diagnostic system of computer |
-
1977
- 1977-09-26 JP JP11583877A patent/JPS5449040A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5933561A (en) * | 1982-08-20 | 1984-02-23 | Fujitsu Ltd | Diagnostic system of computer |
JPH0410100B2 (en) * | 1982-08-20 | 1992-02-24 |
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