JPS54154952A - Diagnosis system for information converting device - Google Patents

Diagnosis system for information converting device

Info

Publication number
JPS54154952A
JPS54154952A JP6325778A JP6325778A JPS54154952A JP S54154952 A JPS54154952 A JP S54154952A JP 6325778 A JP6325778 A JP 6325778A JP 6325778 A JP6325778 A JP 6325778A JP S54154952 A JPS54154952 A JP S54154952A
Authority
JP
Japan
Prior art keywords
register
output
circuit
conversion
information converting
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
Application number
JP6325778A
Other languages
Japanese (ja)
Inventor
Takeo Tsunoda
Yoshihiro Sato
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co Ltd
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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP6325778A priority Critical patent/JPS54154952A/en
Publication of JPS54154952A publication Critical patent/JPS54154952A/en
Pending legal-status Critical Current

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  • Test And Diagnosis Of Digital Computers (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)

Abstract

PURPOSE: To ensure the self-diagnosis for the information processor containing both forward and backward conversion means by comparing the input of one side with the output of the other side.
CONSTITUTION: At the forward conversion time, input (a) is stored in register 6-2 via register 2 and then OR circuit 6-1. Output (c) underwent the forward conversion undergoes the backward conversion through backward conversion circuit 1-2 via register 3 and 4 to be supplied to register 5. Output (h) of register 5 is supplied to exclusive logic sum circuit 6-4 via OR gate 6-3 to secure the exclusive logic sum with output (j) of register 6-2. In case no coincidence is obtained, the fact that some fault has occurred at either one of register groups 2W5 including information converting part 1 is reported to the central process unit. The same operation is given also at the backward conversion time with the difference only in the direction.
COPYRIGHT: (C)1979,JPO&Japio
JP6325778A 1978-05-29 1978-05-29 Diagnosis system for information converting device Pending JPS54154952A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6325778A JPS54154952A (en) 1978-05-29 1978-05-29 Diagnosis system for information converting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6325778A JPS54154952A (en) 1978-05-29 1978-05-29 Diagnosis system for information converting device

Publications (1)

Publication Number Publication Date
JPS54154952A true JPS54154952A (en) 1979-12-06

Family

ID=13224020

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6325778A Pending JPS54154952A (en) 1978-05-29 1978-05-29 Diagnosis system for information converting device

Country Status (1)

Country Link
JP (1) JPS54154952A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6247215A (en) * 1985-08-24 1987-02-28 Nippon Telegr & Teleph Corp <Ntt> Trouble monitoring device
JP2020149425A (en) * 2019-03-14 2020-09-17 ルネサスエレクトロニクス株式会社 Semiconductor device, calculation function diagnostic method, and program

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6247215A (en) * 1985-08-24 1987-02-28 Nippon Telegr & Teleph Corp <Ntt> Trouble monitoring device
JP2020149425A (en) * 2019-03-14 2020-09-17 ルネサスエレクトロニクス株式会社 Semiconductor device, calculation function diagnostic method, and program

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