JPS56101261A - Disc device - Google Patents

Disc device

Info

Publication number
JPS56101261A
JPS56101261A JP327180A JP327180A JPS56101261A JP S56101261 A JPS56101261 A JP S56101261A JP 327180 A JP327180 A JP 327180A JP 327180 A JP327180 A JP 327180A JP S56101261 A JPS56101261 A JP S56101261A
Authority
JP
Japan
Prior art keywords
write
disc
buffer memory
parallel
finished
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
JP327180A
Other languages
Japanese (ja)
Inventor
Masayoshi Kamo
Ichiro Araki
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP327180A priority Critical patent/JPS56101261A/en
Publication of JPS56101261A publication Critical patent/JPS56101261A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F5/00—Methods or arrangements for data conversion without changing the order or content of the data handled
    • G06F5/06—Methods or arrangements for data conversion without changing the order or content of the data handled for changing the speed of data flow, i.e. speed regularising or timing, e.g. delay lines, FIFO buffers; over- or underrun control therefor
    • G06F5/16—Multiplexed systems, i.e. using two or more similar devices which are alternately accessed for enqueue and dequeue operations, e.g. ping-pong buffers

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)

Abstract

PURPOSE:To enable to transfer the information from the disc externally in parallel with the write-in operation from the disc to the buffer memory, by providing the buffer memory of the first-in and first-out with the disc controller. CONSTITUTION:The buffer memory is sectioned into blocks of M1-Mn and the output of the disc buffer memory is converted into parallel information with the serial/parallel data conversion circuit 7, and write-in is sequentially made to the block M1 first under the control of the timing generating circuit 8 controlled with the disc controller. When the write-in to M1 is finished, write-in is sequentially made from the block M2 to M3 on and after. When the write-in to the block M1 is finished, the memory content is sequentially read out and converted into serial information at the parallel/serial conversion circuit 16 and transmitted externally. When the readout of M1 is finished, readout is moved to M2, M3.
JP327180A 1980-01-16 1980-01-16 Disc device Pending JPS56101261A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP327180A JPS56101261A (en) 1980-01-16 1980-01-16 Disc device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP327180A JPS56101261A (en) 1980-01-16 1980-01-16 Disc device

Publications (1)

Publication Number Publication Date
JPS56101261A true JPS56101261A (en) 1981-08-13

Family

ID=11552777

Family Applications (1)

Application Number Title Priority Date Filing Date
JP327180A Pending JPS56101261A (en) 1980-01-16 1980-01-16 Disc device

Country Status (1)

Country Link
JP (1) JPS56101261A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60156159A (en) * 1984-01-25 1985-08-16 Hitachi Ltd magnetic bubble memory device
US5274589A (en) * 1990-11-21 1993-12-28 Nippon Steel Corporation Method and apparatus for writing and reading data to/from a memory

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60156159A (en) * 1984-01-25 1985-08-16 Hitachi Ltd magnetic bubble memory device
US5274589A (en) * 1990-11-21 1993-12-28 Nippon Steel Corporation Method and apparatus for writing and reading data to/from a memory

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