JPS61161563A - Storage device - Google Patents

Storage device

Info

Publication number
JPS61161563A
JPS61161563A JP60002847A JP284785A JPS61161563A JP S61161563 A JPS61161563 A JP S61161563A JP 60002847 A JP60002847 A JP 60002847A JP 284785 A JP284785 A JP 284785A JP S61161563 A JPS61161563 A JP S61161563A
Authority
JP
Japan
Prior art keywords
generating circuit
syndrome
storage device
error
decoder
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
JP60002847A
Other languages
Japanese (ja)
Inventor
Toru Takishima
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
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 filed Critical NEC Corp
Priority to JP60002847A priority Critical patent/JPS61161563A/en
Publication of JPS61161563A publication Critical patent/JPS61161563A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To detect an error during the system is operating by fetching an error check signal together with data into the SEC-DED code which a storage device has.
CONSTITUTION: The storage device is provided with a parity checker 15, an error generating circuit 14, a NOR gate 40, a check bit generating circuit 2, a memory matrix circuit 6, a syndrome generating circuit 8, and a decoder 9. The syndrome generating circuit 8 uses read data, which is read out from a storage position determined by the address of the memory matrix circuit 6, and a check bit corresponding to read data to generate a syndrome. The decoder 9 decodes the syndrome from the syndrome generating circuit 8 to detect whether the parity checker 15 is faulty or not during the system is operating.
COPYRIGHT: (C)1986,JPO&Japio
JP60002847A 1985-01-11 1985-01-11 Storage device Pending JPS61161563A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP60002847A JPS61161563A (en) 1985-01-11 1985-01-11 Storage device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60002847A JPS61161563A (en) 1985-01-11 1985-01-11 Storage device

Publications (1)

Publication Number Publication Date
JPS61161563A true JPS61161563A (en) 1986-07-22

Family

ID=11540789

Family Applications (1)

Application Number Title Priority Date Filing Date
JP60002847A Pending JPS61161563A (en) 1985-01-11 1985-01-11 Storage device

Country Status (1)

Country Link
JP (1) JPS61161563A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5315725A (en) * 1976-07-28 1978-02-14 Fujitsu Ltd Check system for hardware
JPS5525812A (en) * 1978-08-08 1980-02-23 Panafacom Ltd Writing system for error correction code

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5315725A (en) * 1976-07-28 1978-02-14 Fujitsu Ltd Check system for hardware
JPS5525812A (en) * 1978-08-08 1980-02-23 Panafacom Ltd Writing system for error correction code

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