JPS6421653A - Erroneous writing preventing method to backup memory in power source turning-off time - Google Patents

Erroneous writing preventing method to backup memory in power source turning-off time

Info

Publication number
JPS6421653A
JPS6421653A JP62179512A JP17951287A JPS6421653A JP S6421653 A JPS6421653 A JP S6421653A JP 62179512 A JP62179512 A JP 62179512A JP 17951287 A JP17951287 A JP 17951287A JP S6421653 A JPS6421653 A JP S6421653A
Authority
JP
Japan
Prior art keywords
power source
erroneous writing
backup memory
time
cpu
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
JP62179512A
Other languages
English (en)
Inventor
Hiroyuki Matsumoto
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP62179512A priority Critical patent/JPS6421653A/ja
Publication of JPS6421653A publication Critical patent/JPS6421653A/ja
Pending legal-status Critical Current

Links

Landscapes

  • Techniques For Improving Reliability Of Storages (AREA)
  • Power Sources (AREA)
JP62179512A 1987-07-17 1987-07-17 Erroneous writing preventing method to backup memory in power source turning-off time Pending JPS6421653A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62179512A JPS6421653A (en) 1987-07-17 1987-07-17 Erroneous writing preventing method to backup memory in power source turning-off time

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62179512A JPS6421653A (en) 1987-07-17 1987-07-17 Erroneous writing preventing method to backup memory in power source turning-off time

Publications (1)

Publication Number Publication Date
JPS6421653A true JPS6421653A (en) 1989-01-25

Family

ID=16067090

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62179512A Pending JPS6421653A (en) 1987-07-17 1987-07-17 Erroneous writing preventing method to backup memory in power source turning-off time

Country Status (1)

Country Link
JP (1) JPS6421653A (ja)

Similar Documents

Publication Publication Date Title
JPS573164A (en) Microcomputer control device
EP0608967A3 (en) Memory devices
KR910010534A (ko) 반도체 기억장치의 용장회로
JPS57141097A (en) Storage circuit
EP0316902A3 (en) Semiconductor memory circuit having an improved restoring scheme
JPS5798171A (en) Portable type storage device
KR920005169A (ko) 테스트 모드를 지시하기 위한 플래그를 가지는 반도체 메모리
JPS6421653A (en) Erroneous writing preventing method to backup memory in power source turning-off time
EP0357502A3 (en) Programmable semiconductor memory circuit
JPS6465633A (en) Microprogram controller
JPS5341958A (en) Trip sequence memory unit
JPS5613585A (en) Semiconductor memory circuit
JPS58114B2 (ja) メモリ装置
JPS60140413A (ja) メモリバツクアツプ回路
KR890001224B1 (ko) 마이크로프로세서를 이용한 시스템에 있어서 리세트 및 데이타 보호회로
KR910008222Y1 (ko) 정보 보관 회로
RU1791849C (ru) Элемент пам ти
SU842975A1 (ru) Запоминающее устройство с сохранениемиНфОРМАции пРи ОТКлючЕНии пиТАНи
KR890002549Y1 (ko) 기록데이타 보존회로
KR0151776B1 (ko) 키보드 콘트롤러를 이용한 씨피유 전압검출장치
JPS56143591A (en) Semiconductor memory device
SU1278975A1 (ru) Устройство дл сбора и хранени геофизической информации
JPS5560353A (en) Position information memory used for moving communication system
JPS6419585A (en) Semiconductor memory device
JPH03286215A (ja) メモリバックアップ回路