JPS5771599A - Address error detection system - Google Patents

Address error detection system

Info

Publication number
JPS5771599A
JPS5771599A JP55147822A JP14782280A JPS5771599A JP S5771599 A JPS5771599 A JP S5771599A JP 55147822 A JP55147822 A JP 55147822A JP 14782280 A JP14782280 A JP 14782280A JP S5771599 A JPS5771599 A JP S5771599A
Authority
JP
Japan
Prior art keywords
syndrome
circuit
data
inputted
generating 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.)
Pending
Application number
JP55147822A
Other languages
Japanese (ja)
Inventor
Toshihiro Sakai
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 JP55147822A priority Critical patent/JPS5771599A/en
Publication of JPS5771599A publication Critical patent/JPS5771599A/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
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Detection And Correction Of Errors (AREA)
  • Techniques For Improving Reliability Of Storages (AREA)

Abstract

PURPOSE:To detect a fulat of address information without increasing the capacity of a storage device, by inputting an address parity bit to a check bit generating circuit and a syndrome generating circuit, respectively. CONSTITUTION:A write-in data and an address parity bit are inputted to a check bit generating circuit 4, and a check bit is generated from the circuit 4. The data and the check bit are written in a storage device 1. The data bit, the check bit and a parity bit of a readout address, which have been read out from the device 1 are inputted to a syndrome generating circuit 5. A generated syndrome is inputted to a syndrome generating circuit 5. A generated syndrome is inputted to a syndrome generating circuit 5. A generated syndrome is inputted to a syndrome decoding circuit 6, and in the circuit 6, an error is decided. In case of an error which can be corrected, a correction position instructing information is sent out to a data correction circuit 7 from the circuit 6, the circuit 7 corrects a data in accordance with this informatuon, and sends it out to a data line 11. In this way, it is decided by the syndrome pattern that the address line is faulty.
JP55147822A 1980-10-22 1980-10-22 Address error detection system Pending JPS5771599A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55147822A JPS5771599A (en) 1980-10-22 1980-10-22 Address error detection system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55147822A JPS5771599A (en) 1980-10-22 1980-10-22 Address error detection system

Publications (1)

Publication Number Publication Date
JPS5771599A true JPS5771599A (en) 1982-05-04

Family

ID=15439007

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55147822A Pending JPS5771599A (en) 1980-10-22 1980-10-22 Address error detection system

Country Status (1)

Country Link
JP (1) JPS5771599A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6054059A (en) * 1983-09-02 1985-03-28 Hitachi Ltd Storage device
JPH03186954A (en) * 1989-12-15 1991-08-14 Fujitsu Ltd Address error detection system
JP2020194357A (en) * 2019-05-28 2020-12-03 株式会社東芝 Information processing circuit and information processing method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6054059A (en) * 1983-09-02 1985-03-28 Hitachi Ltd Storage device
JPH03186954A (en) * 1989-12-15 1991-08-14 Fujitsu Ltd Address error detection system
JP2020194357A (en) * 2019-05-28 2020-12-03 株式会社東芝 Information processing circuit and information processing method

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