JPS6288044A - Memory control system - Google Patents

Memory control system

Info

Publication number
JPS6288044A
JPS6288044A JP60226895A JP22689585A JPS6288044A JP S6288044 A JPS6288044 A JP S6288044A JP 60226895 A JP60226895 A JP 60226895A JP 22689585 A JP22689585 A JP 22689585A JP S6288044 A JPS6288044 A JP S6288044A
Authority
JP
Japan
Prior art keywords
read out
out data
memory part
parity
error
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
JP60226895A
Other languages
Japanese (ja)
Inventor
Mitsunori Maeda
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 JP60226895A priority Critical patent/JPS6288044A/en
Publication of JPS6288044A publication Critical patent/JPS6288044A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To output a read out data having no errors and to rewrite the read out data in which the error is detected with the data having no errors by writing the same adding an parity bit on two memories.
CONSTITUTION: When a parity error is detected in the read out data on a memory part 11a, the memory part 11a and a parity memory part 11b are switched to a write mode, and also, the read out data on a memory part 12a is outputted. The read out data is added on the memory part 11a and is rewritten automatically to the read out data having no parity error. Also, when the error is detected at the read out data on the memory 12a, an output from an OR circuit 21 becomes '0', and consequently, the memory part 12a and a parity memory part 12b are switched to the write mode, the data being rewritten automatically to the read out data of the memory part 11a.
COPYRIGHT: (C)1987,JPO&Japio
JP60226895A 1985-10-14 1985-10-14 Memory control system Pending JPS6288044A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP60226895A JPS6288044A (en) 1985-10-14 1985-10-14 Memory control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60226895A JPS6288044A (en) 1985-10-14 1985-10-14 Memory control system

Publications (1)

Publication Number Publication Date
JPS6288044A true JPS6288044A (en) 1987-04-22

Family

ID=16852265

Family Applications (1)

Application Number Title Priority Date Filing Date
JP60226895A Pending JPS6288044A (en) 1985-10-14 1985-10-14 Memory control system

Country Status (1)

Country Link
JP (1) JPS6288044A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02224044A (en) * 1988-11-10 1990-09-06 Nec Corp Program storage device
JPH02278354A (en) * 1989-04-20 1990-11-14 Nec Corp Storage device
JPH03256149A (en) * 1990-03-07 1991-11-14 Zexel Corp Failure information storage device
JPH04114637U (en) * 1991-03-26 1992-10-09
JPH04332998A (en) * 1991-05-08 1992-11-19 Koufu Nippon Denki Kk Troubleshooting system
WO2012169114A1 (en) * 2011-06-10 2012-12-13 日本電気株式会社 Semiconductor storage device, control method for same, and non-transitory computer readable medium in which control program is stored
JP2014191409A (en) * 2013-03-26 2014-10-06 Nec Engineering Ltd State control device and state control method

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02224044A (en) * 1988-11-10 1990-09-06 Nec Corp Program storage device
JPH02278354A (en) * 1989-04-20 1990-11-14 Nec Corp Storage device
JPH03256149A (en) * 1990-03-07 1991-11-14 Zexel Corp Failure information storage device
JPH04114637U (en) * 1991-03-26 1992-10-09
JPH04332998A (en) * 1991-05-08 1992-11-19 Koufu Nippon Denki Kk Troubleshooting system
WO2012169114A1 (en) * 2011-06-10 2012-12-13 日本電気株式会社 Semiconductor storage device, control method for same, and non-transitory computer readable medium in which control program is stored
JP2014191409A (en) * 2013-03-26 2014-10-06 Nec Engineering Ltd State control device and state control method

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