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JPS5545110A - Error detection system - Google Patents

Error detection system

Info

Publication number
JPS5545110A
JPS5545110A JP11671378A JP11671378A JPS5545110A JP S5545110 A JPS5545110 A JP S5545110A JP 11671378 A JP11671378 A JP 11671378A JP 11671378 A JP11671378 A JP 11671378A JP S5545110 A JPS5545110 A JP S5545110A
Authority
JP
Japan
Prior art keywords
data
error
error detection
memory
detection system
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
JP11671378A
Other languages
Japanese (ja)
Inventor
Toshikatsu Watabe
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP11671378A priority Critical patent/JPS5545110A/en
Publication of JPS5545110A publication Critical patent/JPS5545110A/en
Pending legal-status Critical Current

Links

Landscapes

  • Detection And Correction Of Errors (AREA)
  • Techniques For Improving Reliability Of Storages (AREA)

Abstract

PURPOSE: To obtain an easy-to-operate error detection system by eliminating the need of an excessive memory cycle by providing 1st memories stored with data and a 2nd memory with error codes.
CONSTITUTION: Data of one block are written in 1st memories FM1 to FMn and from those written data, an error code is generated by 1st generating circuit 12 and then stored in 2nd memory SM. When the data are read out, data is read out from 1st memories FM and at the same time, an error code for a read is generated by the 2nd generating circuit 14 from those data. Next, error detection circuit 15 makes a comparison between this read error code and the write error code stored in the 2nd memory SM to detect an error. In this way, an easily-operated error detection system is realized.
COPYRIGHT: (C)1980,JPO&Japio
JP11671378A 1978-09-25 1978-09-25 Error detection system Pending JPS5545110A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11671378A JPS5545110A (en) 1978-09-25 1978-09-25 Error detection system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11671378A JPS5545110A (en) 1978-09-25 1978-09-25 Error detection system

Publications (1)

Publication Number Publication Date
JPS5545110A true JPS5545110A (en) 1980-03-29

Family

ID=14693962

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11671378A Pending JPS5545110A (en) 1978-09-25 1978-09-25 Error detection system

Country Status (1)

Country Link
JP (1) JPS5545110A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59217685A (en) * 1983-05-25 1984-12-07 株式会社イナックス Manufacture of floor tile
JPH02195457A (en) * 1989-01-24 1990-08-02 Fujitsu Ltd Error detection device for semiconductor storage devices
JPH06282449A (en) * 1993-03-29 1994-10-07 Nec Corp Memory controller

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50130331A (en) * 1974-04-01 1975-10-15
JPS5392633A (en) * 1977-01-25 1978-08-14 Mitsubishi Electric Corp Read only memory unit

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50130331A (en) * 1974-04-01 1975-10-15
JPS5392633A (en) * 1977-01-25 1978-08-14 Mitsubishi Electric Corp Read only memory unit

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59217685A (en) * 1983-05-25 1984-12-07 株式会社イナックス Manufacture of floor tile
JPH02195457A (en) * 1989-01-24 1990-08-02 Fujitsu Ltd Error detection device for semiconductor storage devices
JPH06282449A (en) * 1993-03-29 1994-10-07 Nec Corp Memory controller

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