JPS5426630A - Inspection system of rom - Google Patents
Inspection system of romInfo
- Publication number
- JPS5426630A JPS5426630A JP9190877A JP9190877A JPS5426630A JP S5426630 A JPS5426630 A JP S5426630A JP 9190877 A JP9190877 A JP 9190877A JP 9190877 A JP9190877 A JP 9190877A JP S5426630 A JPS5426630 A JP S5426630A
- Authority
- JP
- Japan
- Prior art keywords
- rom
- inspection system
- output
- decoder
- counter
- 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
- Techniques For Improving Reliability Of Storages (AREA)
- Read Only Memory (AREA)
- For Increasing The Reliability Of Semiconductor Memories (AREA)
Abstract
PURPOSE: To enable to inspect ROM's with accuracy in a short time, by releasing the inhibit of the output of the instruction decoder with the trailing edge of the final step of a program counter and by picking up the content of ROM with the advancement of the counter while the output of the decoder is inhibited.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9190877A JPS5426630A (en) | 1977-07-29 | 1977-07-29 | Inspection system of rom |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9190877A JPS5426630A (en) | 1977-07-29 | 1977-07-29 | Inspection system of rom |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5426630A true JPS5426630A (en) | 1979-02-28 |
Family
ID=14039669
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9190877A Pending JPS5426630A (en) | 1977-07-29 | 1977-07-29 | Inspection system of rom |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5426630A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5525868A (en) * | 1978-08-14 | 1980-02-23 | Nec Corp | Diagnostic system for control memory |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3831148A (en) * | 1973-01-02 | 1974-08-20 | Honeywell Inf Systems | Nonexecute test apparatus |
-
1977
- 1977-07-29 JP JP9190877A patent/JPS5426630A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3831148A (en) * | 1973-01-02 | 1974-08-20 | Honeywell Inf Systems | Nonexecute test apparatus |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5525868A (en) * | 1978-08-14 | 1980-02-23 | Nec Corp | Diagnostic system for control memory |
JPS5931800B2 (en) * | 1978-08-14 | 1984-08-04 | 日本電気株式会社 | Control memory diagnostic method |
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