JPS6226738B2 - - Google Patents

Info

Publication number
JPS6226738B2
JPS6226738B2 JP56177406A JP17740681A JPS6226738B2 JP S6226738 B2 JPS6226738 B2 JP S6226738B2 JP 56177406 A JP56177406 A JP 56177406A JP 17740681 A JP17740681 A JP 17740681A JP S6226738 B2 JPS6226738 B2 JP S6226738B2
Authority
JP
Japan
Prior art keywords
signal
memory
terminal
cpu
gate circuit
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.)
Expired
Application number
JP56177406A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5880200A (ja
Inventor
Hirohisa Mizuhara
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP56177406A priority Critical patent/JPS5880200A/ja
Publication of JPS5880200A publication Critical patent/JPS5880200A/ja
Publication of JPS6226738B2 publication Critical patent/JPS6226738B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Storage Device Security (AREA)
JP56177406A 1981-11-04 1981-11-04 メモリ保護回路 Granted JPS5880200A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56177406A JPS5880200A (ja) 1981-11-04 1981-11-04 メモリ保護回路

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56177406A JPS5880200A (ja) 1981-11-04 1981-11-04 メモリ保護回路

Publications (2)

Publication Number Publication Date
JPS5880200A JPS5880200A (ja) 1983-05-14
JPS6226738B2 true JPS6226738B2 (OSRAM) 1987-06-10

Family

ID=16030369

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56177406A Granted JPS5880200A (ja) 1981-11-04 1981-11-04 メモリ保護回路

Country Status (1)

Country Link
JP (1) JPS5880200A (OSRAM)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6266301U (OSRAM) * 1985-10-14 1987-04-24
JPS62138258U (OSRAM) * 1986-02-26 1987-08-31

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5297032U (OSRAM) * 1976-01-19 1977-07-20
JPS5379417A (en) * 1976-12-24 1978-07-13 Nec Corp Protection system for memory content

Also Published As

Publication number Publication date
JPS5880200A (ja) 1983-05-14

Similar Documents

Publication Publication Date Title
JPS6122828B2 (OSRAM)
GB888732A (OSRAM)
US4460972A (en) Single chip microcomputer selectively operable in response to instructions stored on the computer chip or in response to instructions stored external to the chip
JPS61182160A (ja) デ−タ処理装置
US4649476A (en) Microcomputer having an internal address mapper
US3480917A (en) Arrangement for transferring between program sequences in a data processor
JPS6042966B2 (ja) デ−タ処理システム
JPS6226738B2 (OSRAM)
JPS6362778B2 (OSRAM)
JPS62286143A (ja) 半導体記憶装置
JPH01232452A (ja) ワンチッププロセッサ
JPH0227596A (ja) 半導体メモリ
JPS595496A (ja) メモリプロテクト方式
JPH08185360A (ja) 内蔵ｒｏｍ読み出し禁止装置
JPS6140652A (ja) メモリの書込み保護方法及び回路
JPS60193046A (ja) 命令例外検出方式
KR940006823B1 (ko) 메모리 라이트 보호회로
JP2619671B2 (ja) メモリ制御回路
JPS6117474Y2 (OSRAM)
JPS6320631A (ja) レジスタ選択方式
JPS60189043A (ja) プロセツサ
JPH02178836A (ja) 中央演算処理装置
JPH03273349A (ja) アクセス制御方式
JPH0512175A (ja) 周辺制御装置
JPH04112233A (ja) マイクロコンピュータ