JPS6433649A - Address error detecting system - Google Patents

Address error detecting system

Info

Publication number
JPS6433649A
JPS6433649A JP62190848A JP19084887A JPS6433649A JP S6433649 A JPS6433649 A JP S6433649A JP 62190848 A JP62190848 A JP 62190848A JP 19084887 A JP19084887 A JP 19084887A JP S6433649 A JPS6433649 A JP S6433649A
Authority
JP
Japan
Prior art keywords
line
parity
data
lsi
address
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
JP62190848A
Other languages
Japanese (ja)
Inventor
Jun Kanatsu
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
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 filed Critical NEC Corp
Priority to JP62190848A priority Critical patent/JPS6433649A/en
Publication of JPS6433649A publication Critical patent/JPS6433649A/en
Pending legal-status Critical Current

Links

Landscapes

  • Techniques For Improving Reliability Of Storages (AREA)

Abstract

PURPOSE:To decrease the number of input/output signals of an LSI by using an address parity to give correction to the write and read data parities of a control memory inside the LSI so that no output of parity is required to an address line from the LSI. CONSTITUTION:A write data line is inverted by an inverting circuit 6 if an address parity line 104 is kept at '1' when data are written into a control memory 8. Then data are written into the memory 8 with an address line 103 defined as an address. In a data read mode a read data parity line 105 is inverted by an inverting circuit 7 as long as the line 104 is kept at '1'. Thus the data are inputted to a control memory reading register 4. The contents of the register 4 undergo the parity check via a parity checking circuit 5. Thus an error of the line 103 is checked by the circuit 5 so that no output of parity is required to the line 103 from an LSI 1. Therefore the number of input/output lines of the LSI 1 can be decreased.
JP62190848A 1987-07-29 1987-07-29 Address error detecting system Pending JPS6433649A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62190848A JPS6433649A (en) 1987-07-29 1987-07-29 Address error detecting system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62190848A JPS6433649A (en) 1987-07-29 1987-07-29 Address error detecting system

Publications (1)

Publication Number Publication Date
JPS6433649A true JPS6433649A (en) 1989-02-03

Family

ID=16264782

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62190848A Pending JPS6433649A (en) 1987-07-29 1987-07-29 Address error detecting system

Country Status (1)

Country Link
JP (1) JPS6433649A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5038739A (en) * 1989-09-07 1991-08-13 Nissan Motor Company, Ltd. Control arrangement for multi-cylinder two cycle engine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5038739A (en) * 1989-09-07 1991-08-13 Nissan Motor Company, Ltd. Control arrangement for multi-cylinder two cycle engine

Similar Documents

Publication Publication Date Title
JPS6433649A (en) Address error detecting system
JPS56127262A (en) Peripheral storage controller
JPS5570997A (en) Error bit check system for read only memory
JPS5744294A (en) Alternating memory control system
JPS57169857A (en) Control storage device
JPS5750308A (en) Time base correcting device
JPS5736500A (en) Memory check system
JPS5782298A (en) Diagnostic system for storage device
JPS6432359A (en) Memory device
JPS5677985A (en) Semiconductor memory device
JPS5677999A (en) Ecc circuit diagnosing system for memory device
JPH0421221B2 (en)
JPS5746400A (en) Memory device
JPS62250563A (en) Magnetic disk storage device
JPS6454557A (en) Address parity checking circuit
JPS6465651A (en) Error correcting system for storage device
JPS5712498A (en) Integrated circuit device for memory
JPH0272455A (en) Memory having error detecting circuit
JPS5557962A (en) Error detection system
JP2597484B2 (en) Data transfer method
JPS57100536A (en) Data buffer device
JPS55115148A (en) Error detection and correction system
JPS554757A (en) Error control system of memory unit
JPS5733496A (en) Data processor
JPS6415844A (en) Memory device