JPS57181500A - Rom check system - Google Patents

Rom check system

Info

Publication number
JPS57181500A
JPS57181500A JP6632981A JP6632981A JPS57181500A JP S57181500 A JPS57181500 A JP S57181500A JP 6632981 A JP6632981 A JP 6632981A JP 6632981 A JP6632981 A JP 6632981A JP S57181500 A JPS57181500 A JP S57181500A
Authority
JP
Japan
Prior art keywords
check
rom
constitution
total value
address group
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
JP6632981A
Other languages
Japanese (ja)
Inventor
Kiyoshi Washida
Akira Ina
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP6632981A priority Critical patent/JPS57181500A/en
Publication of JPS57181500A publication Critical patent/JPS57181500A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/08—Error detection or correction by redundancy in data representation, e.g. by using checking codes

Abstract

PURPOSE:To check an ROM with a simple constitution without parity check, by the checking based on a total value adding the contents of recording sections of respective ROMs at each address group to be blocked. CONSTITUTION:Contents a1-d1 of ROMs corresponding to an address group 1 are summed, a total value Sum 1 is determined and compared with a total value SUM1 corresponding registered in advance. If the result of comparison is discident, it is discriminated that there is an ROM causing an error to this address group. Similarly, the similar check is executed sequentially as to address groups 2... without parity check and the constitution of the hardware is simple for the ROM check system.
JP6632981A 1981-04-30 1981-04-30 Rom check system Pending JPS57181500A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6632981A JPS57181500A (en) 1981-04-30 1981-04-30 Rom check system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6632981A JPS57181500A (en) 1981-04-30 1981-04-30 Rom check system

Publications (1)

Publication Number Publication Date
JPS57181500A true JPS57181500A (en) 1982-11-08

Family

ID=13312690

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6632981A Pending JPS57181500A (en) 1981-04-30 1981-04-30 Rom check system

Country Status (1)

Country Link
JP (1) JPS57181500A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60230250A (en) * 1984-04-27 1985-11-15 Meidensha Electric Mfg Co Ltd Data processing system of nonvolatile memory
JPH0344898A (en) * 1989-07-12 1991-02-26 Ando Electric Co Ltd Prom writer to collate check sum value

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60230250A (en) * 1984-04-27 1985-11-15 Meidensha Electric Mfg Co Ltd Data processing system of nonvolatile memory
JPH0344898A (en) * 1989-07-12 1991-02-26 Ando Electric Co Ltd Prom writer to collate check sum value

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