JPS55157042A - Information processor - Google Patents

Information processor

Info

Publication number
JPS55157042A
JPS55157042A JP6506879A JP6506879A JPS55157042A JP S55157042 A JPS55157042 A JP S55157042A JP 6506879 A JP6506879 A JP 6506879A JP 6506879 A JP6506879 A JP 6506879A JP S55157042 A JPS55157042 A JP S55157042A
Authority
JP
Japan
Prior art keywords
error
generator
parity bit
parity
cpu5
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
JP6506879A
Other languages
Japanese (ja)
Other versions
JPS6232813B2 (en
Inventor
Kazuhiro Iwata
Noboru Yamaguchi
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 JP54065068A priority Critical patent/JPS6232813B2/ja
Publication of JPS55157042A publication Critical patent/JPS55157042A/en
Publication of JPS6232813B2 publication Critical patent/JPS6232813B2/ja
Expired legal-status Critical Current

Links

Abstract

PURPOSE: To enable to inform the error in read data from memories to CPU simply with the parity bit, by providing an error check correction circuit, partity generator and parity bit converter.
CONSTITUTION: A memory controller 6 includes an error check correction circuit 11, parity generator 12, and parity bit converter 13, and a memory 7 is a memory with error correction code. Since the interface between CPU5 and controller 6 is of parity check system, the parity bit 16 is produced from the read data 14 at the generator 12. In this case the circuit 11 checks the data 14 and correct parity bit is fed to CPU5 from the generator 12 in case of no-error or single error, and if the circuit 11 detects uncorrectable error, an uncorrectable signal 17 is output to the converter 13, which converts the bit 16 from the generator into incorrect parity bit and feeds it to the CPU5.
COPYRIGHT: (C)1980,JPO&Japio
JP54065068A 1979-05-28 1979-05-28 Expired JPS6232813B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54065068A JPS6232813B2 (en) 1979-05-28 1979-05-28

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54065068A JPS6232813B2 (en) 1979-05-28 1979-05-28

Publications (2)

Publication Number Publication Date
JPS55157042A true JPS55157042A (en) 1980-12-06
JPS6232813B2 JPS6232813B2 (en) 1987-07-16

Family

ID=13276254

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54065068A Expired JPS6232813B2 (en) 1979-05-28 1979-05-28

Country Status (1)

Country Link
JP (1) JPS6232813B2 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5844488A (en) * 1981-09-11 1983-03-15 Nippon Telegraph & Telephone Pattern generator
JPH01145732A (en) * 1987-12-01 1989-06-07 Fujitsu Ltd Parity bit generating system
JPH03288935A (en) * 1990-04-05 1991-12-19 Nec Corp Error correcting device for information processor
JPH05225798A (en) * 1991-08-14 1993-09-03 Internatl Business Mach Corp <Ibm> Memory system
JP2009037448A (en) * 2007-08-02 2009-02-19 Nec Computertechno Ltd Fault detection device, fault detection method, and fault detection program
JP2012074057A (en) * 2003-07-11 2012-04-12 Yogitech Spa Dependable microcontroller, designing method thereof and computer program therefor

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5150581A (en) * 1991-06-24 1992-09-29 Baltimore Aircoil Company Head pressure controller for air conditioning and refrigeration systems

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5844488A (en) * 1981-09-11 1983-03-15 Nippon Telegraph & Telephone Pattern generator
JPH01145732A (en) * 1987-12-01 1989-06-07 Fujitsu Ltd Parity bit generating system
JPH03288935A (en) * 1990-04-05 1991-12-19 Nec Corp Error correcting device for information processor
JPH05225798A (en) * 1991-08-14 1993-09-03 Internatl Business Mach Corp <Ibm> Memory system
JP2012074057A (en) * 2003-07-11 2012-04-12 Yogitech Spa Dependable microcontroller, designing method thereof and computer program therefor
JP2009037448A (en) * 2007-08-02 2009-02-19 Nec Computertechno Ltd Fault detection device, fault detection method, and fault detection program

Also Published As

Publication number Publication date
JPS6232813B2 (en) 1987-07-16

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