JPS5760598A - Microprogram controller - Google Patents

Microprogram controller

Info

Publication number
JPS5760598A
JPS5760598A JP13645280A JP13645280A JPS5760598A JP S5760598 A JPS5760598 A JP S5760598A JP 13645280 A JP13645280 A JP 13645280A JP 13645280 A JP13645280 A JP 13645280A JP S5760598 A JPS5760598 A JP S5760598A
Authority
JP
Japan
Prior art keywords
storage
microprogram
fault
controller
address
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
JP13645280A
Other languages
Japanese (ja)
Inventor
Fumiaki Ishibashi
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
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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP13645280A priority Critical patent/JPS5760598A/en
Publication of JPS5760598A publication Critical patent/JPS5760598A/en
Pending 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)
  • Detection And Correction Of Errors (AREA)
  • Techniques For Improving Reliability Of Storages (AREA)
  • For Increasing The Reliability Of Semiconductor Memories (AREA)
  • Read Only Memory (AREA)

Abstract

PURPOSE:To increase the reliability of a microprogram controller, by carrying out the conversion of address in accordance with the faulty area of a control storage. CONSTITUTION:A microprogram 50 is successively written in a control storage 400, and the written data is successively readout. Then an address that gives an access to the storage 500 is converted 300 by the address converting rule in case when a faulty bit exists in the readout data, and the writing and reading is carried out again with the storage 400 with the checking 600 given to the readout data. Then the microprogram is loaded repetitively until the write bit pattern coincides with the fault bit pattern of the storage 400 and the checking means 600 does not detect the fault any more. Thus a controller itself functions to avoid the fault, and accordingly the controller has no breakdown.
JP13645280A 1980-09-30 1980-09-30 Microprogram controller Pending JPS5760598A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13645280A JPS5760598A (en) 1980-09-30 1980-09-30 Microprogram controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13645280A JPS5760598A (en) 1980-09-30 1980-09-30 Microprogram controller

Publications (1)

Publication Number Publication Date
JPS5760598A true JPS5760598A (en) 1982-04-12

Family

ID=15175434

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13645280A Pending JPS5760598A (en) 1980-09-30 1980-09-30 Microprogram controller

Country Status (1)

Country Link
JP (1) JPS5760598A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5355551U (en) * 1977-11-07 1978-05-12

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5226092U (en) * 1975-08-15 1977-02-23
JPS54101826U (en) * 1977-12-28 1979-07-18

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5226092U (en) * 1975-08-15 1977-02-23
JPS54101826U (en) * 1977-12-28 1979-07-18

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5355551U (en) * 1977-11-07 1978-05-12

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