JPS5426631A - Inspection system of rom - Google Patents

Inspection system of rom

Info

Publication number
JPS5426631A
JPS5426631A JP9190977A JP9190977A JPS5426631A JP S5426631 A JPS5426631 A JP S5426631A JP 9190977 A JP9190977 A JP 9190977A JP 9190977 A JP9190977 A JP 9190977A JP S5426631 A JPS5426631 A JP S5426631A
Authority
JP
Japan
Prior art keywords
rom
inspection system
content
external
inspection instruction
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
Application number
JP9190977A
Other languages
Japanese (ja)
Other versions
JPS5713959B2 (en
Inventor
Akira Nagano
Kazuaki Urasaki
Kenji Yoshimoto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Omron Corp
Original Assignee
Omron Tateisi Electronics Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Omron Tateisi Electronics Co filed Critical Omron Tateisi Electronics Co
Priority to JP9190977A priority Critical patent/JPS5426631A/en
Publication of JPS5426631A publication Critical patent/JPS5426631A/en
Publication of JPS5713959B2 publication Critical patent/JPS5713959B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To prevent the content from being fed to external with the condition that the inspection instruction is given from external terminals, by reading out the content of ROM while the output of the instruction decoder is inhibited, when the control circuit judges that the inspection instruction input is present at the application of power supply.
COPYRIGHT: (C)1979,JPO&Japio
JP9190977A 1977-07-29 1977-07-29 Inspection system of rom Granted JPS5426631A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9190977A JPS5426631A (en) 1977-07-29 1977-07-29 Inspection system of rom

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9190977A JPS5426631A (en) 1977-07-29 1977-07-29 Inspection system of rom

Publications (2)

Publication Number Publication Date
JPS5426631A true JPS5426631A (en) 1979-02-28
JPS5713959B2 JPS5713959B2 (en) 1982-03-20

Family

ID=14039698

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9190977A Granted JPS5426631A (en) 1977-07-29 1977-07-29 Inspection system of rom

Country Status (1)

Country Link
JP (1) JPS5426631A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5525868A (en) * 1978-08-14 1980-02-23 Nec Corp Diagnostic system for control memory
JPS56116156A (en) * 1980-02-20 1981-09-11 Toshiba Corp Circuit check system for information processor
JPS63153800A (en) * 1986-12-17 1988-06-27 Nec Corp Check circuit for information on inside of rom
JPH0540703A (en) * 1991-01-16 1993-02-19 Mitsubishi Electric Corp Microprocessor

Cited By (5)

* Cited by examiner, † Cited by third party
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
JPS56116156A (en) * 1980-02-20 1981-09-11 Toshiba Corp Circuit check system for information processor
JPS63153800A (en) * 1986-12-17 1988-06-27 Nec Corp Check circuit for information on inside of rom
JPH0540703A (en) * 1991-01-16 1993-02-19 Mitsubishi Electric Corp Microprocessor

Also Published As

Publication number Publication date
JPS5713959B2 (en) 1982-03-20

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