JPS5556264A - Error detection circuit - Google Patents

Error detection circuit

Info

Publication number
JPS5556264A
JPS5556264A JP12879078A JP12879078A JPS5556264A JP S5556264 A JPS5556264 A JP S5556264A JP 12879078 A JP12879078 A JP 12879078A JP 12879078 A JP12879078 A JP 12879078A JP S5556264 A JPS5556264 A JP S5556264A
Authority
JP
Japan
Prior art keywords
signal
circuit
selector circuit
error
parity
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
JP12879078A
Other languages
Japanese (ja)
Inventor
Tadao Kondo
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP12879078A priority Critical patent/JPS5556264A/en
Publication of JPS5556264A publication Critical patent/JPS5556264A/en
Pending legal-status Critical Current

Links

Landscapes

  • Detection And Correction Of Errors (AREA)

Abstract

PURPOSE: To suppress an increase in hardware by detecting an error of a selective assignment signal of a selector circuit by regarding it as a parity error of output data of the selector circuit.
CONSTITUTION: A selective assignement signal is sent out through signal lines 51W 54 to indicate signal selection by logic "1". An exclusive-OR circuit makes a check on whether two selection indications exist at the same time to control selector circuit 1. Then, gate 6 generate the parity of a signal generated by coding the selective assignment signal by gates 4 and 5. by coded signals from signal lines 63 and 64 and a parity signal from signal line 65, exclusive-OR circuit 3 makes a parity check to output logic "0" where an error is found, thereby putting selector circuit 1 in an unselected state. At this time, since selector circuit 1 outputs data of all logic "0", it is found that selective assignment of circuit 1 is incorrect. An error report circuit of a register, etc., at the post stage of the selector circuit serves as that for the selective assignment signal, so that only small hardware will be required.
COPYRIGHT: (C)1980,JPO&Japio
JP12879078A 1978-10-19 1978-10-19 Error detection circuit Pending JPS5556264A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12879078A JPS5556264A (en) 1978-10-19 1978-10-19 Error detection circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12879078A JPS5556264A (en) 1978-10-19 1978-10-19 Error detection circuit

Publications (1)

Publication Number Publication Date
JPS5556264A true JPS5556264A (en) 1980-04-24

Family

ID=14993510

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12879078A Pending JPS5556264A (en) 1978-10-19 1978-10-19 Error detection circuit

Country Status (1)

Country Link
JP (1) JPS5556264A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007099288A (en) * 2005-09-30 2007-04-19 Risu Pack Co Ltd Container for packaging

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007099288A (en) * 2005-09-30 2007-04-19 Risu Pack Co Ltd Container for packaging

Similar Documents

Publication Publication Date Title
JPS5556264A (en) Error detection circuit
JPS57197961A (en) Conversion system for image data
JPS55166749A (en) Decoder circuit
ES8405174A1 (en) A timing control system in a data processor.
JPS5672744A (en) Interruption control circuit
JPS5694596A (en) Memory control system
JPS5299029A (en) Input/output interface control system
JPS51138340A (en) Memory system
JPS52106080A (en) Failure diagnosis system
JPS5731057A (en) Information processing equipment
SU473180A1 (en) Device for testing comparison circuits
SU907847A1 (en) Device for preventing fractionation of telegraph signals being received
JPS56153592A (en) Output memory device
JPS57202153A (en) Pattern detecting circuit
JPS5353932A (en) Fault detection system for memory address line
JPS52128004A (en) Magnetic input type jumper checking circuit
JPS5587254A (en) Parity check system for two-way bus
JPS5762646A (en) Error detection system
JPS55139699A (en) Error detection system of memory unit
JPS54101630A (en) Input/output information check system
JPS55115757A (en) Fixed pattern suppression system
JPS5452938A (en) Channel control system
JPS56112149A (en) Condensing method for transmission circuit trace information
JPS54120548A (en) Interruption detection system
JPS56112148A (en) Storing method for trace information of transmission line