JPS5611369A - Diagnostic system of lsi - Google Patents
Diagnostic system of lsiInfo
- Publication number
- JPS5611369A JPS5611369A JP8669279A JP8669279A JPS5611369A JP S5611369 A JPS5611369 A JP S5611369A JP 8669279 A JP8669279 A JP 8669279A JP 8669279 A JP8669279 A JP 8669279A JP S5611369 A JPS5611369 A JP S5611369A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- diagnosis
- input
- diagnosing
- diagnostic information
- 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
Landscapes
- Tests Of Electronic Circuits (AREA)
Abstract
PURPOSE: To make it possible to perform complete diagnosis in a short time at an arbitrary time, by sealing a diagnosing circuit in the package of an LSI and by making it possible to provide diagnostic information lines so that the number of them is not restricted by I/O terminals.
CONSTITUTION: A material where function circuit 3 and diagnosing circuit 8 are formed on the same chip or plural chips is mounted on the same package 1. When a signal is input to signal terminal 11 for diagnosis, data for diagnosis is input to function circuit 3 through information line 4 for diagnosis and input switching circuit 10 or through diagnostic information line 5. Response data for data for diagnosis is input from function circuit 3 to diagnosing circuit 8 through diagnostic information line 6. Response data is compared with an expected value by diagnosing circuit 8, and the result is output from diagnosing circuit 8 to output terminal 7 through switching circuit 9. Thus, complete diagnosis can be performed in a short time at an arbitrary time.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8669279A JPS5611369A (en) | 1979-07-09 | 1979-07-09 | Diagnostic system of lsi |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8669279A JPS5611369A (en) | 1979-07-09 | 1979-07-09 | Diagnostic system of lsi |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5611369A true JPS5611369A (en) | 1981-02-04 |
Family
ID=13894012
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8669279A Pending JPS5611369A (en) | 1979-07-09 | 1979-07-09 | Diagnostic system of lsi |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5611369A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006080111A1 (en) * | 2005-01-27 | 2006-08-03 | Matsushita Electric Industrial Co., Ltd. | Semiconductor integrated circuit and system lsi |
-
1979
- 1979-07-09 JP JP8669279A patent/JPS5611369A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006080111A1 (en) * | 2005-01-27 | 2006-08-03 | Matsushita Electric Industrial Co., Ltd. | Semiconductor integrated circuit and system lsi |
US7739571B2 (en) | 2005-01-27 | 2010-06-15 | Panasonic Corporation | Semiconductor integrated circuit and system LSI having a test expected value programming circuit |
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