JPH0156480B2 - - Google Patents

Info

Publication number
JPH0156480B2
JPH0156480B2 JP58203986A JP20398683A JPH0156480B2 JP H0156480 B2 JPH0156480 B2 JP H0156480B2 JP 58203986 A JP58203986 A JP 58203986A JP 20398683 A JP20398683 A JP 20398683A JP H0156480 B2 JPH0156480 B2 JP H0156480B2
Authority
JP
Japan
Prior art keywords
information
signal
comparison
address
rom
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
JP58203986A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6097449A (ja
Inventor
Koichi Karya
Mineo Akashi
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
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 Nippon Electric Co Ltd filed Critical Nippon Electric Co Ltd
Priority to JP58203986A priority Critical patent/JPS6097449A/ja
Publication of JPS6097449A publication Critical patent/JPS6097449A/ja
Publication of JPH0156480B2 publication Critical patent/JPH0156480B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/70—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer
    • G06F21/78—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure storage of data
    • G06F21/79—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure storage of data in semiconductor storage media, e.g. directly-addressable memories

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Hardware Design (AREA)
  • Theoretical Computer Science (AREA)
  • Software Systems (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • For Increasing The Reliability Of Semiconductor Memories (AREA)
  • Storage Device Security (AREA)
  • Techniques For Improving Reliability Of Storages (AREA)
  • Test And Diagnosis Of Digital Computers (AREA)
JP58203986A 1983-10-31 1983-10-31 読み出し専用メモリを有する情報処理装置 Granted JPS6097449A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58203986A JPS6097449A (ja) 1983-10-31 1983-10-31 読み出し専用メモリを有する情報処理装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58203986A JPS6097449A (ja) 1983-10-31 1983-10-31 読み出し専用メモリを有する情報処理装置

Publications (2)

Publication Number Publication Date
JPS6097449A JPS6097449A (ja) 1985-05-31
JPH0156480B2 true JPH0156480B2 (cg-RX-API-DMAC7.html) 1989-11-30

Family

ID=16482890

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58203986A Granted JPS6097449A (ja) 1983-10-31 1983-10-31 読み出し専用メモリを有する情報処理装置

Country Status (1)

Country Link
JP (1) JPS6097449A (cg-RX-API-DMAC7.html)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01118933A (ja) * 1987-10-31 1989-05-11 Nec Corp シングルチップマイクロコンピュータ
KR0146067B1 (ko) * 1990-03-09 1998-09-15 문정환 롬 데이타 보호방법 및 장치
JP2613674B2 (ja) * 1990-10-31 1997-05-28 シャープ株式会社 集積回路装置

Also Published As

Publication number Publication date
JPS6097449A (ja) 1985-05-31

Similar Documents

Publication Publication Date Title
US7526709B2 (en) Error detection and correction in a CAM
JPS63133238A (ja) デジタルデータ処理システム
JPH03104097A (ja) 半導体記憶装置
JPS61267846A (ja) メモリを有する集積回路装置
JPH0156480B2 (cg-RX-API-DMAC7.html)
JPH07169298A (ja) 冗長性半導体メモリの不良エレメントの検出方法
JPH048838B2 (cg-RX-API-DMAC7.html)
JPS6130301B2 (cg-RX-API-DMAC7.html)
JPS6019080B2 (ja) 記憶装置のチェック方法
TWI750073B (zh) 具有保全功能的半導體裝置及其保全方法
JPWO2005010760A1 (ja) Ｃａｍ装置およびｃａｍ制御方法
JPS6329859A (ja) 記憶保護装置
JP3224946B2 (ja) 半導体集積回路
JP2613674B2 (ja) 集積回路装置
JPH04359320A (ja) 電子機器
JPH04257030A (ja) 読み出し専用メモリパッチ方式
JPS62233867A (ja) リ−ドオンリメモリ
CN116186789A (zh) 一种校验和计算顺序确定方法、装置、设备及存储介质
JPS59113600A (ja) 高信頼記憶回路装置
JPS6035694B2 (ja) 主記憶保護方式
JPH11120800A (ja) フラッシュメモリ内蔵情報処理システム
JPS62212748A (ja) 情報処理システム
JPS63181052A (ja) メモリ書込み保護方式
KR19990061865A (ko) 입출력 디바이스의 어드레스 변경방법
JPS6075949A (ja) 記憶装置