JPS5617442A - Parity error processing system - Google Patents

Parity error processing system

Info

Publication number
JPS5617442A
JPS5617442A JP9213479A JP9213479A JPS5617442A JP S5617442 A JPS5617442 A JP S5617442A JP 9213479 A JP9213479 A JP 9213479A JP 9213479 A JP9213479 A JP 9213479A JP S5617442 A JPS5617442 A JP S5617442A
Authority
JP
Japan
Prior art keywords
parity
error
processor
processing
information
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
JP9213479A
Other languages
Japanese (ja)
Other versions
JPS6042496B2 (en
Inventor
Motoharu Asano
Takashi Kawade
Naoaki Adachi
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone Corp
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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP54092134A priority Critical patent/JPS6042496B2/en
Publication of JPS5617442A publication Critical patent/JPS5617442A/en
Publication of JPS6042496B2 publication Critical patent/JPS6042496B2/en
Expired legal-status Critical Current

Links

Abstract

PURPOSE: To attain economical program constitution by making the processing of a processor different in accordance with the importance of data in which a parity error occurs.
CONSTITUTION: Parity-error adding and checking circuit 3 adds a parity bit when storing main memory 2 with information and makes a parity check when leading the information out of main memory 2. If a parity error is detected, an error detection signal is sent to parity-error processing circuit 7 through information line (q). Parity-error processing circuit 7 discriminates whether the parity error has been made in memory access from processor 1 or in the operation of DMA transfer circuit 6 and then reports the result to state display register 4. Processor 1 performs needed processing by looking in the contents of state display register 4.
COPYRIGHT: (C)1981,JPO&Japio
JP54092134A 1979-07-21 1979-07-21 Parity error processing method Expired JPS6042496B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54092134A JPS6042496B2 (en) 1979-07-21 1979-07-21 Parity error processing method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54092134A JPS6042496B2 (en) 1979-07-21 1979-07-21 Parity error processing method

Publications (2)

Publication Number Publication Date
JPS5617442A true JPS5617442A (en) 1981-02-19
JPS6042496B2 JPS6042496B2 (en) 1985-09-24

Family

ID=14045954

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54092134A Expired JPS6042496B2 (en) 1979-07-21 1979-07-21 Parity error processing method

Country Status (1)

Country Link
JP (1) JPS6042496B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63282872A (en) * 1987-05-15 1988-11-18 Fujitsu Ltd Data processor
JPH06337820A (en) * 1993-05-28 1994-12-06 Internatl Business Mach Corp <Ibm> Mechanism and method for detection and recovery of error in multiple bus system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63282872A (en) * 1987-05-15 1988-11-18 Fujitsu Ltd Data processor
JPH06337820A (en) * 1993-05-28 1994-12-06 Internatl Business Mach Corp <Ibm> Mechanism and method for detection and recovery of error in multiple bus system

Also Published As

Publication number Publication date
JPS6042496B2 (en) 1985-09-24

Similar Documents

Publication Publication Date Title
JPS56140452A (en) Memory protection system
JPS5539994A (en) Multiprocessor system
JPS5617442A (en) Parity error processing system
JPS5570997A (en) Error bit check system for read only memory
JPS5619593A (en) Parity check processing system for memory
JPS5495144A (en) Malfunction detection system in data processing unit
JPS5593596A (en) Memory unit
JPS5736500A (en) Memory check system
JPS5617417A (en) Common bus supervisory system
JPS54129948A (en) Data processor
JPS5663652A (en) Information processing unit
JPS57143654A (en) Memory sequence extending circuit
JPS54142022A (en) Information processor
JPS5697164A (en) Test and set and test and reset system
JPS5683900A (en) Buffer recording device
JPS5353932A (en) Fault detection system for memory address line
JPS5650427A (en) Data transfer unit
JPS55150047A (en) Test unit for information processor
JPS5680895A (en) Erroneous action detection system
JPS5619596A (en) Parity error processing system
JPS56117400A (en) Buffer memory control system
JPS5557962A (en) Error detection system
JPS5652451A (en) Interruption display system
JPS5651096A (en) Error detection system
JPS5619597A (en) Diagnostic and processing system for memory unit