JPS52153633A - Memory correcting system - Google Patents

Memory correcting system

Info

Publication number
JPS52153633A
JPS52153633A JP6970576A JP6970576A JPS52153633A JP S52153633 A JPS52153633 A JP S52153633A JP 6970576 A JP6970576 A JP 6970576A JP 6970576 A JP6970576 A JP 6970576A JP S52153633 A JPS52153633 A JP S52153633A
Authority
JP
Japan
Prior art keywords
memory
corrective
correcting system
content
memory correcting
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
JP6970576A
Other languages
Japanese (ja)
Inventor
Shunji Kitamura
Masaki Murayama
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP6970576A priority Critical patent/JPS52153633A/en
Publication of JPS52153633A publication Critical patent/JPS52153633A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C7/00—Arrangements for writing information into, or reading information out from, a digital store
    • G11C7/24—Memory cell safety or protection circuits, e.g. arrangements for preventing inadvertent reading or writing; Status cells; Test cells

Landscapes

  • For Increasing The Reliability Of Semiconductor Memories (AREA)
  • Read Only Memory (AREA)

Abstract

PURPOSE:To increase the utilizing efficiency of the corrective memory, by providing the corrective control RAM to alterate the content of ROM or to countermeasure the defection and by quickly performing the alteration of the content for all the addressed of control memory with this corrective memory of slight capacity.
JP6970576A 1976-06-16 1976-06-16 Memory correcting system Pending JPS52153633A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6970576A JPS52153633A (en) 1976-06-16 1976-06-16 Memory correcting system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6970576A JPS52153633A (en) 1976-06-16 1976-06-16 Memory correcting system

Publications (1)

Publication Number Publication Date
JPS52153633A true JPS52153633A (en) 1977-12-20

Family

ID=13410516

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6970576A Pending JPS52153633A (en) 1976-06-16 1976-06-16 Memory correcting system

Country Status (1)

Country Link
JP (1) JPS52153633A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5760591A (en) * 1980-09-30 1982-04-12 Nec Corp Temporary correction system of stationary storage device
JPS5985545A (en) * 1982-11-09 1984-05-17 Fujitsu Ltd Correcting and processing system for contents of system rom
JPS59171093A (en) * 1983-03-18 1984-09-27 Fujitsu Ltd Stored data changing system of storing circuit
JPS60169938A (en) * 1984-02-14 1985-09-03 Fuji Xerox Co Ltd Microprogram control device
JPS60171537A (en) * 1984-02-15 1985-09-05 Fuji Xerox Co Ltd Microprogram controller

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5760591A (en) * 1980-09-30 1982-04-12 Nec Corp Temporary correction system of stationary storage device
JPS5985545A (en) * 1982-11-09 1984-05-17 Fujitsu Ltd Correcting and processing system for contents of system rom
JPS59171093A (en) * 1983-03-18 1984-09-27 Fujitsu Ltd Stored data changing system of storing circuit
JPS6322380B2 (en) * 1983-03-18 1988-05-11 Fujitsu Ltd
JPS60169938A (en) * 1984-02-14 1985-09-03 Fuji Xerox Co Ltd Microprogram control device
JPS60171537A (en) * 1984-02-15 1985-09-05 Fuji Xerox Co Ltd Microprogram controller

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