JPS57113478A - Magnetic bubble memory controlling system - Google Patents

Magnetic bubble memory controlling system

Info

Publication number
JPS57113478A
JPS57113478A JP18906080A JP18906080A JPS57113478A JP S57113478 A JPS57113478 A JP S57113478A JP 18906080 A JP18906080 A JP 18906080A JP 18906080 A JP18906080 A JP 18906080A JP S57113478 A JPS57113478 A JP S57113478A
Authority
JP
Japan
Prior art keywords
address
loop
marker
register
minor loop
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
JP18906080A
Other languages
Japanese (ja)
Inventor
Shigeru Takai
Takenori Iida
Keiichi Kaneko
Koei Kamishiro
Harumi Maekawa
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 JP18906080A priority Critical patent/JPS57113478A/en
Publication of JPS57113478A publication Critical patent/JPS57113478A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C19/00—Digital stores in which the information is moved stepwise, e.g. shift registers
    • G11C19/02—Digital stores in which the information is moved stepwise, e.g. shift registers using magnetic elements
    • G11C19/08—Digital stores in which the information is moved stepwise, e.g. shift registers using magnetic elements using thin films in plane structure
    • G11C19/0866—Detecting magnetic domains

Abstract

PURPOSE:To shorten an access time in case of setting an address, by writing in advance plural groups of marker codes in a minor loop which is used for a marker loop for detecting an address of the minor loop. CONSTITUTION:1 group of marker codes M1- written in a minor loop 3-1 for marker loop which is used for detecting a minor loop address is read out by a bubble detector 6 for a minor loop, and is set to a shift register 12. Subsequently, when said code coincides with a code of a register 8 for a marker code, which is set by a bubble address register of a controller 9, a flag 1 is set to the controller 9 by a comparator 13 and an FF7. As a result, a period by the controller 9 is started, an error of the text codes M1- set to the register 12 is checked through a buffer 15, address control is executed without passing through a major loop, and an access time in case of setting an address is shortened.
JP18906080A 1980-12-29 1980-12-29 Magnetic bubble memory controlling system Pending JPS57113478A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18906080A JPS57113478A (en) 1980-12-29 1980-12-29 Magnetic bubble memory controlling system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18906080A JPS57113478A (en) 1980-12-29 1980-12-29 Magnetic bubble memory controlling system

Publications (1)

Publication Number Publication Date
JPS57113478A true JPS57113478A (en) 1982-07-14

Family

ID=16234615

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18906080A Pending JPS57113478A (en) 1980-12-29 1980-12-29 Magnetic bubble memory controlling system

Country Status (1)

Country Link
JP (1) JPS57113478A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58211389A (en) * 1982-06-01 1983-12-08 Fujitsu Ltd Controlling system of magnetic bubble memory
JPS59221886A (en) * 1983-05-31 1984-12-13 Fujitsu Ltd Defective loop information storing system of magnetic bubble memory element

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58211389A (en) * 1982-06-01 1983-12-08 Fujitsu Ltd Controlling system of magnetic bubble memory
JPS59221886A (en) * 1983-05-31 1984-12-13 Fujitsu Ltd Defective loop information storing system of magnetic bubble memory element
JPS623510B2 (en) * 1983-05-31 1987-01-26 Fujitsu Ltd

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