JPH02226349A - Data processor - Google Patents

Data processor

Info

Publication number
JPH02226349A
JPH02226349A JP1047172A JP4717289A JPH02226349A JP H02226349 A JPH02226349 A JP H02226349A JP 1047172 A JP1047172 A JP 1047172A JP 4717289 A JP4717289 A JP 4717289A JP H02226349 A JPH02226349 A JP H02226349A
Authority
JP
Japan
Prior art keywords
error
code
memory
battery backup
data processing
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
JP1047172A
Other languages
Japanese (ja)
Inventor
Yuuko Nishikawa
西川　愉子
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 JP1047172A priority Critical patent/JPH02226349A/en
Publication of JPH02226349A publication Critical patent/JPH02226349A/en
Pending legal-status Critical Current

Links

Landscapes

  • Techniques For Improving Reliability Of Storages (AREA)
  • Debugging And Monitoring (AREA)

Abstract

PURPOSE:To clearly recognize contents of error by writing a code of the error in a battery backup memory at the time of the occurrence of this error and reading out the code of the error from the battery backup memory at the time of turning on a power source again after turning off it. CONSTITUTION:A data processing part 11, a writable non-volatile battery backup memory 13 which is backed up by a battery, and a memory read/write part 12 which writes and reads out information in and from the battery backup memory 13 are provided. When error occurs in a data processor 10, the data processing part 11 writes the code of this error in the battery backup memory 13 by the memory read/write part 12. When the power source is turned on again after being turned off, the memory read/write part 12 reads out the code of the error from the battery backup memory 13. Thus, the code of the error is recognized.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明はデータ処理装置に関し、特に、バッテリによっ
てバックアップされた書込み可能な不揮発性メモリを有
するデータ処理装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a data processing device, and more particularly to a data processing device having a writable non-volatile memory backed up by a battery.

〔従来の技術〕[Conventional technology]

従来のデータ処理装置は、致命的なエラーが発生したと
き、電源を切断して再投入すると、発生したエラーの内
容が消滅してしまうため、エラーの内容が不明となって
しまっている。In conventional data processing devices, when a fatal error occurs, when the power is turned off and then on again, the content of the error that has occurred disappears, making the content of the error unknown.

〔発明が解決しようとする課題〕[Problem to be solved by the invention]

上述したように、従来のデータ処理装置は、致命的なエ
ラーが発生したとき、電源を切断して再投入すると、発
生したエラーの内容が消滅するため、発生したエラーの
内容を正確に知ることができないという欠点を有してい
る。As mentioned above, in conventional data processing devices, when a fatal error occurs, if the power is turned off and then turned on again, the content of the error that occurred disappears, so it is difficult to accurately know the content of the error that has occurred. It has the disadvantage that it cannot be used.

〔課題を解決するための手段〕[Means to solve the problem]

本発明のデータ処理装置は、バッテリによってバックア
ップされた書込み可能な不揮発性メモリを有するデータ
処理装置において、致命的なエラーが発生したとき、そ
の不揮発性メモリにその発生したエラーの内容を格納し
、電源を切断して再投入したのちにおいても、当該エラ
ーの内容を読出すことができるようにしたものである。When a fatal error occurs in a data processing device having a writable nonvolatile memory backed up by a battery, the data processing device of the present invention stores the content of the error that has occurred in the nonvolatile memory, The contents of the error can be read out even after the power is turned off and then turned on again.

すなわち、本発明のデータ処理装置は、バッテリによっ
てバックアップされた書込み可能な不揮発性メモリと、
前記不揮発性メモリに対して情報の書込みおよび読出し
を行うメモリ書込み読出し部と、エラーが発生したとき
当該エラーのコードを前記不揮発性メモリに書込ませ電
源を切断して再投入したとき前記コードを前記不揮発性
メモリから読出すように前記メモリ書込み読出し部に指
示を与えるデータ処理部とを備えている。That is, the data processing device of the present invention includes a writable nonvolatile memory backed up by a battery,
a memory write/read unit that writes and reads information to and from the nonvolatile memory; and a memory write/read unit that writes an error code to the nonvolatile memory when an error occurs, and writes the code when the power is turned off and then turned on again. and a data processing section that gives an instruction to the memory write/read section to read from the nonvolatile memory.

〔実施例〕〔Example〕

次に、本発明の実施例について図面を参照して説明する
。Next, embodiments of the present invention will be described with reference to the drawings.

第１図は本発明の一実施例を示すブロック図である。FIG. 1 is a block diagram showing one embodiment of the present invention.

第１図のデータ処理装置１０は、データ処理部１１と、
バッテリによってバックアップされた書込み可能な不揮
発性のバッテリバックアップメモリ１３と、このバッテ
リバックアップメモリ１３に対して情報の書込み読出し
を行うメモリ書込み読出し部１２とを備えている。The data processing device 10 in FIG. 1 includes a data processing section 11,
It includes a writable, nonvolatile battery backup memory 13 backed up by a battery, and a memory write/read unit 12 that writes and reads information to and from the battery backup memory 13.

データ処理装置１０にエラーが発生すると、データ処理
部１１は、その発生したエラーのコードをメモリ書込み
読出し部１２によってバッテリバックアップメモリ１３
に書込む。電源を切断して再投入のとき、メモリ書込み
読出し部１２は、発生したエラーのコードをバッテリバ
ックアップメモリ１３から読出す。これによって当該発
生エラーのコードを認知することができる。When an error occurs in the data processing device 10, the data processing section 11 writes the code of the error that has occurred to the battery backup memory 13 by the memory writing/reading section 12.
write to. When the power is turned off and then turned on again, the memory write/read section 12 reads the code of the error that has occurred from the battery backup memory 13. This allows the code of the error to be recognized.

〔発明の効果〕〔Effect of the invention〕

以上説明したように、本発明のデータ処理装置は、エラ
ー発生時に、発生したエラーのコードをバッテリバック
アップメモリに書込んでおき、電源を切断して再投入し
たとき、バッテリバックアップメモリから発生したエラ
ーのコードを読出すことによって発生エラーの内容を明
確に認知することができるという効果がある。As explained above, in the data processing device of the present invention, when an error occurs, the code of the error that has occurred is written in the battery backup memory, and when the power is turned off and then turned on again, the data processing device of the present invention stores the code of the error that has occurred from the battery backup memory. By reading the code, the content of the error that has occurred can be clearly recognized.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本発明の一実施例を示すブロック図である。 １０・・・データ処理装置、１１・・・データ処理部、
１２・・・バッテリバックアップメモリ書込み読出し部
、１３・・・バッテリバックアップメモリ部。FIG. 1 is a block diagram showing one embodiment of the present invention. 10... data processing device, 11... data processing unit,
12...Battery backup memory write/read section, 13...Battery backup memory section.

Claims (1)

【特許請求の範囲】[Claims] バッテリによってバックアップされた書込み可能な不揮
発性メモリと、前記不揮発性メモリに対して情報の書込
みおよび読出しを行うメモリ書込み読出し部と、エラー
が発生したとき当該エラーのコードを前記不揮発性メモ
リに書込ませ電源を切断して再投入したとき前記コード
を前記不揮発性メモリから読出すように前記メモリ書込
み読出し部に指示を与えるデータ処理部とを備えること
を特徴とするデータ処理装置。a writable nonvolatile memory backed up by a battery; a memory write/read unit that writes and reads information to and from the nonvolatile memory; and when an error occurs, writes a code of the error to the nonvolatile memory. a data processing unit that instructs the memory write/read unit to read the code from the nonvolatile memory when power is turned off and then turned on again.
JP1047172A 1989-02-27 1989-02-27 Data processor Pending JPH02226349A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1047172A JPH02226349A (en) 1989-02-27 1989-02-27 Data processor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1047172A JPH02226349A (en) 1989-02-27 1989-02-27 Data processor

Publications (1)

Publication Number Publication Date
JPH02226349A true JPH02226349A (en) 1990-09-07

Family

ID=12767646

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1047172A Pending JPH02226349A (en) 1989-02-27 1989-02-27 Data processor

Country Status (1)

Country Link
JP (1) JPH02226349A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06348605A (en) * 1993-06-10 1994-12-22 Nec Corp Memory controller
JPH09179786A (en) * 1995-12-26 1997-07-11 Kofu Nippon Denki Kk Fault information reporting circuit for memory element

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06348605A (en) * 1993-06-10 1994-12-22 Nec Corp Memory controller
JPH09179786A (en) * 1995-12-26 1997-07-11 Kofu Nippon Denki Kk Fault information reporting circuit for memory element

Similar Documents

Publication Publication Date Title
JPH02226349A (en) Data processor
JPS62125452A (en) Data back-up system for storage device
JPS63170752A (en) Trace circuit
JPH04105110A (en) Power controller
KR19980072967A (en) How to save / restore computer work environment using save-to-disk method
JPS63177243A (en) Compact computer
JPH04296954A (en) memory system
JPH039442A (en) Automatic tracing mechanism
JPH0388053A (en) Method for writing/reading out data in/from recording medium
JPH04130976A (en) Microcomputer
JPH04175936A (en) Tracing circuit
JPS626341A (en) Information processor
JPS62191951A (en) Memory back-up circuit
JPS62108333A (en) Semiconductor device
JPS6332642A (en) Information processor
JPH02302997A (en) Prom to prevent miswrite
JPH05250203A (en) In-circuit emulator
JPS62272815A (en) Digital protective relay
JPH0548093U (en) Cash register machine
JPH0749801A (en) Error analysis support circuit
JPH02226422A (en) Information processor
JPS63254529A (en) Microprogram controlled data processing device
JPH03127115A (en) Floppy disk write data securing system
JPH0480860A (en) Program loading system
JPS6053875A (en) Time information control system