JPS57195398A - Substitute gate control system - Google Patents

Substitute gate control system

Info

Publication number
JPS57195398A
JPS57195398A JP56080632A JP8063281A JPS57195398A JP S57195398 A JPS57195398 A JP S57195398A JP 56080632 A JP56080632 A JP 56080632A JP 8063281 A JP8063281 A JP 8063281A JP S57195398 A JPS57195398 A JP S57195398A
Authority
JP
Japan
Prior art keywords
register
substitute
inhal
inputted
registers
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.)
Granted
Application number
JP56080632A
Other languages
Japanese (ja)
Other versions
JPS6321933B2 (en
Inventor
Koichi Aida
Toyoshi Yamada
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 JP56080632A priority Critical patent/JPS57195398A/en
Publication of JPS57195398A publication Critical patent/JPS57195398A/en
Publication of JPS6321933B2 publication Critical patent/JPS6321933B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Techniques For Improving Reliability Of Storages (AREA)
  • Hardware Redundancy (AREA)
  • Detection And Correction Of Errors (AREA)

Abstract

PURPOSE: To realize a high-reliability substitute gate control system by controlling registers by a substitute information transmission indication signal, detecting the states of the registers, and setting substitute information in a different register.
CONSTITUTION: Signals INHAL-1 and INHAL-2 for indicating errors of parity checks on registers 2-1 and 2-2 respectively are inputted to flip-flops (FF) 40 and 41. If a parity check error occurs on the side of the register 2-1, the signal INHAL has a level (0) to hold a Q-terminal output to be inputted to the FF circuit 40 at (1). NAND circuits 42, 43, and 46 outputs signals (0), (1), and (1), and NAND circuits 44, 45, and 46 output signals (1), (1), and (1); and output signals J and K are inputted to NAND circuits 47 and 48 to output signals (1) and (0). Therefore, a substitute switching circuit composed of an FF22 switches the register 2-1 over to the register 2-2.
COPYRIGHT: (C)1982,JPO&Japio
JP56080632A 1981-05-26 1981-05-26 Substitute gate control system Granted JPS57195398A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56080632A JPS57195398A (en) 1981-05-26 1981-05-26 Substitute gate control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56080632A JPS57195398A (en) 1981-05-26 1981-05-26 Substitute gate control system

Publications (2)

Publication Number Publication Date
JPS57195398A true JPS57195398A (en) 1982-12-01
JPS6321933B2 JPS6321933B2 (en) 1988-05-10

Family

ID=13723732

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56080632A Granted JPS57195398A (en) 1981-05-26 1981-05-26 Substitute gate control system

Country Status (1)

Country Link
JP (1) JPS57195398A (en)

Also Published As

Publication number Publication date
JPS6321933B2 (en) 1988-05-10

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