JPS5693195A - Memory control system - Google Patents

Memory control system

Info

Publication number
JPS5693195A
JPS5693195A JP17008279A JP17008279A JPS5693195A JP S5693195 A JPS5693195 A JP S5693195A JP 17008279 A JP17008279 A JP 17008279A JP 17008279 A JP17008279 A JP 17008279A JP S5693195 A JPS5693195 A JP S5693195A
Authority
JP
Japan
Prior art keywords
data
error
parity
case
memory
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
JP17008279A
Other languages
Japanese (ja)
Inventor
Shigemi Uemoto
Nobuyoshi Tate
Matsuaki Tasai
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 JP17008279A priority Critical patent/JPS5693195A/en
Publication of JPS5693195A publication Critical patent/JPS5693195A/en
Pending legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To increase using efficiency of a memory module, by performing an error check by identifying the addition of a error correcting code or the parity for reading data given from a memory part.
CONSTITUTION: The device is provided with the data memory part 2; data writing control part 3; data memory device control part 4; and data correction/output part 6 respectively. The output part 6 checks the presence or absence of the error based on the control signal supplied from the parity identifying part 5 as well as the error correcting code ECC in case the data read out of the part 2 contains the parity, and at the same time delivers the reading data. On the other hand, the presence or absence of the error is checked in case the readout data contains ECC. Then the data is corrected when the 1-bit error exists to be delivered, and the presence of the 2-bit error is detected in the case of the 2-bit error.
COPYRIGHT: (C)1981,JPO&Japio
JP17008279A 1979-12-26 1979-12-26 Memory control system Pending JPS5693195A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17008279A JPS5693195A (en) 1979-12-26 1979-12-26 Memory control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17008279A JPS5693195A (en) 1979-12-26 1979-12-26 Memory control system

Publications (1)

Publication Number Publication Date
JPS5693195A true JPS5693195A (en) 1981-07-28

Family

ID=15898300

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17008279A Pending JPS5693195A (en) 1979-12-26 1979-12-26 Memory control system

Country Status (1)

Country Link
JP (1) JPS5693195A (en)

Similar Documents

Publication Publication Date Title
JPS55105900A (en) Error correction/detection system
ES8700462A1 (en) Error recovery system in a data processor having a control storage.
EP0278415A3 (en) Memory system and related error detection and correction apparatus
JPS57127207A (en) Numerical controlling system
JPS55157042A (en) Information processor
JPS5693195A (en) Memory control system
JPS5360123A (en) Searching system for memory content
JPS5324735A (en) Detection and correction system for data error
JPS5744294A (en) Alternating memory control system
JPS558617A (en) Storage system
JPS5694597A (en) Memory data control system
JPS54111725A (en) Error processing system in memory unit
JPS57162188A (en) Error detecting system for storage device
JPS54152832A (en) Loading system
JPS5436916A (en) Error correcting system
JPS57180000A (en) Main storage device
JPS5577097A (en) Memory unit
JPS55135396A (en) Error correction/detection system of memory unit
JPS5668997A (en) Error correction system
JPS53122340A (en) Check system for read-in data
JPS57150196A (en) Storage device
JPS57147199A (en) Memory device
JPS6426952A (en) Soft error correcting circuit
JPS55115148A (en) Error detection and correction system
JPS5323241A (en) Microprogram control processi ng system