JPS5727342A - Error checking system for error detecting correcting circuit - Google Patents

Error checking system for error detecting correcting circuit

Info

Publication number
JPS5727342A
JPS5727342A JP10153180A JP10153180A JPS5727342A JP S5727342 A JPS5727342 A JP S5727342A JP 10153180 A JP10153180 A JP 10153180A JP 10153180 A JP10153180 A JP 10153180A JP S5727342 A JPS5727342 A JP S5727342A
Authority
JP
Japan
Prior art keywords
check bit
correcting circuit
error
circuit
error detecting
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.)
Granted
Application number
JP10153180A
Other languages
Japanese (ja)
Other versions
JPS61654B2 (en
Inventor
Hidekiyo Ozawa
Shigeru Fujii
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 JP10153180A priority Critical patent/JPS5727342A/en
Publication of JPS5727342A publication Critical patent/JPS5727342A/en
Publication of JPS61654B2 publication Critical patent/JPS61654B2/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
    • G06F11/07—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

Abstract

PURPOSE:To perform checking of the justness of an error detecting and correcting circuit very simply by having the data read from the same address checked by the error detecting and correcting circuit. CONSTITUTION:A check bit is formed by a check bit generating and correcting circuit 6. Next, pure data and the check bit are written into a memory. A mode latch 11 is set and a signal bus l2 are selected, The pure data and the check bit are set in an input register 1, and are inputted to a syndrome bit making circuit 3. The circuit 3 makes the check bit, and compares this and the check bit applied to the read data, thereby making a syndrome.
JP10153180A 1980-07-24 1980-07-24 Error checking system for error detecting correcting circuit Granted JPS5727342A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10153180A JPS5727342A (en) 1980-07-24 1980-07-24 Error checking system for error detecting correcting circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10153180A JPS5727342A (en) 1980-07-24 1980-07-24 Error checking system for error detecting correcting circuit

Publications (2)

Publication Number Publication Date
JPS5727342A true JPS5727342A (en) 1982-02-13
JPS61654B2 JPS61654B2 (en) 1986-01-10

Family

ID=14303035

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10153180A Granted JPS5727342A (en) 1980-07-24 1980-07-24 Error checking system for error detecting correcting circuit

Country Status (1)

Country Link
JP (1) JPS5727342A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0474353U (en) * 1990-11-11 1992-06-29

Also Published As

Publication number Publication date
JPS61654B2 (en) 1986-01-10

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