JPH045213B2 - - Google Patents

Info

Publication number
JPH045213B2
JPH045213B2 JP57110404A JP11040482A JPH045213B2 JP H045213 B2 JPH045213 B2 JP H045213B2 JP 57110404 A JP57110404 A JP 57110404A JP 11040482 A JP11040482 A JP 11040482A JP H045213 B2 JPH045213 B2 JP H045213B2
Authority
JP
Japan
Prior art keywords
word
memory
ecc
bit
ecc circuit
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.)
Expired - Lifetime
Application number
JP57110404A
Other languages
English (en)
Japanese (ja)
Other versions
JPS59743A (ja
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 filed Critical
Priority to JP57110404A priority Critical patent/JPS59743A/ja
Publication of JPS59743A publication Critical patent/JPS59743A/ja
Publication of JPH045213B2 publication Critical patent/JPH045213B2/ja
Granted 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
    • G06F11/22—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing
    • G06F11/2205—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing using arrangements specific to the hardware being tested
    • G06F11/2215—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing using arrangements specific to the hardware being tested to test error correction or detection circuits
    • 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
    • G06F11/10—Adding special bits or symbols to the coded information, e.g. parity check, casting out 9's or 11's
    • G06F11/1008—Adding special bits or symbols to the coded information, e.g. parity check, casting out 9's or 11's in individual solid state devices
    • 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
    • G06F11/10—Adding special bits or symbols to the coded information, e.g. parity check, casting out 9's or 11's
    • G06F11/1076—Parity data used in redundant arrays of independent storages, e.g. in RAID systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Detection And Correction Of Errors (AREA)
  • Techniques For Improving Reliability Of Storages (AREA)
  • Test And Diagnosis Of Digital Computers (AREA)
JP57110404A 1982-06-26 1982-06-26 Ｅｃｃ回路診断方式 Granted JPS59743A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57110404A JPS59743A (ja) 1982-06-26 1982-06-26 Ｅｃｃ回路診断方式

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57110404A JPS59743A (ja) 1982-06-26 1982-06-26 Ｅｃｃ回路診断方式

Publications (2)

Publication Number Publication Date
JPS59743A JPS59743A (ja) 1984-01-05
JPH045213B2 true JPH045213B2 (ru) 1992-01-30

Family

ID=14534931

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57110404A Granted JPS59743A (ja) 1982-06-26 1982-06-26 Ｅｃｃ回路診断方式

Country Status (1)

Country Link
JP (1) JPS59743A (ru)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE70136T1 (de) * 1985-07-01 1991-12-15 Unisys Corp Fehlererkennung und -korrektur mit integriertem schaltkreis und automatischer selbstkontrolleund verfahren dazu.
JPS6296744U (ru) * 1985-12-05 1987-06-20
US4827478A (en) * 1987-11-30 1989-05-02 Tandem Computers Incorporated Data integrity checking with fault tolerance
FR2642883B1 (ru) * 1989-02-09 1995-06-02 Asahi Optical Co Ltd

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5298434A (en) * 1976-02-14 1977-08-18 Hitachi Ltd Correction for memory error

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5298434A (en) * 1976-02-14 1977-08-18 Hitachi Ltd Correction for memory error

Also Published As

Publication number Publication date
JPS59743A (ja) 1984-01-05

Similar Documents

Publication Publication Date Title
US5959914A (en) Memory controller with error correction memory test application
US6018817A (en) Error correcting code retrofit method and apparatus for multiple memory configurations
US5663969A (en) Parity-based error detection in a memory controller
US4686621A (en) Test apparatus for testing a multilevel cache system with graceful degradation capability
US5142540A (en) Multipart memory apparatus with error detection
US4926426A (en) Error correction check during write cycles
JPH0719232B2 (ja) メモリアレイのアドレスと中味とをチェックする装置及び方法
US5357521A (en) Address sensitive memory testing
US4928281A (en) Semiconductor memory
EP0383899B1 (en) Failure detection for partial write operations for memories
US3992702A (en) Code conversion arrangements for addresses to faulty memory locations
US4761783A (en) Apparatus and method for reporting occurrences of errors in signals stored in a data processor
US5838892A (en) Method and apparatus for calculating an error detecting code block in a disk drive controller
JPH045213B2 (ru)
WO1989009471A2 (en) Memory selftest method and apparatus
JP3170145B2 (ja) メモリ制御システム
JP2513615B2 (ja) Ｅｃｃ回路付記憶装置
JP2806856B2 (ja) 誤り検出訂正回路の診断装置
JPH0756640B2 (ja) 記憶装置
JP3150571B2 (ja) 二重系切替方式
JP3182834B2 (ja) メモリ装置
JPH05165734A (ja) 主記憶装置の固定障害診断装置
SU783795A2 (ru) Процессор
JP2998282B2 (ja) メモリ装置
SU1249592A1 (ru) Запоминающее устройство с самоконтролем