JPS644975A - Magnetic disk controller - Google Patents

Magnetic disk controller

Info

Publication number
JPS644975A
JPS644975A JP16152487A JP16152487A JPS644975A JP S644975 A JPS644975 A JP S644975A JP 16152487 A JP16152487 A JP 16152487A JP 16152487 A JP16152487 A JP 16152487A JP S644975 A JPS644975 A JP S644975A
Authority
JP
Japan
Prior art keywords
sector
address
track buffer
control
constitution
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
JP16152487A
Other languages
Japanese (ja)
Other versions
JP2562605B2 (en
Inventor
Noboru Hayasaka
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.)
Sanyo Electric Co Ltd
Original Assignee
Sanyo 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 Sanyo Electric Co Ltd filed Critical Sanyo Electric Co Ltd
Priority to JP62161524A priority Critical patent/JP2562605B2/en
Publication of JPS644975A publication Critical patent/JPS644975A/en
Application granted granted Critical
Publication of JP2562605B2 publication Critical patent/JP2562605B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Signal Processing For Digital Recording And Reproducing (AREA)

Abstract

PURPOSE:To simplify the constitution and control of hardware and to make the control memory of a table, etc., unnecessary, by performing the processing of a defective sector in which a track buffer is used effectively. CONSTITUTION:When the defective sector is detected, the content of a sector address counter 15 is stored in a sector address storage part 17, and also, when an alternate sector is detected, the address of the track buffer 11 is switched from an address corresponding to the sector address of the sector address counter 15 to the address corresponding to that of the sector address storage part 17. Since the address designation of the track buffer 11 is performed based on the sector address of a stored defective sector, the write and the readout of data can be executed between a storage area corresponding to the defective sector of the track buffer 11 and the alternate sector of a magnetic disk device. In such a way, it is possible to simplify the constitution and the control of the hardware, and to make a memory capacity for the table for control, etc., unnecessary.
JP62161524A 1987-06-29 1987-06-29 Magnetic disk controller Expired - Lifetime JP2562605B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62161524A JP2562605B2 (en) 1987-06-29 1987-06-29 Magnetic disk controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62161524A JP2562605B2 (en) 1987-06-29 1987-06-29 Magnetic disk controller

Publications (2)

Publication Number Publication Date
JPS644975A true JPS644975A (en) 1989-01-10
JP2562605B2 JP2562605B2 (en) 1996-12-11

Family

ID=15736721

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62161524A Expired - Lifetime JP2562605B2 (en) 1987-06-29 1987-06-29 Magnetic disk controller

Country Status (1)

Country Link
JP (1) JP2562605B2 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4944725A (en) * 1972-06-01 1974-04-27
JPS53102719A (en) * 1977-02-21 1978-09-07 Yokogawa Hokushin Electric Corp Auxiliary track switching system for magnetic disc
JPS583104A (en) * 1981-06-30 1983-01-08 Toshiba Corp Magnetic disc device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4944725A (en) * 1972-06-01 1974-04-27
JPS53102719A (en) * 1977-02-21 1978-09-07 Yokogawa Hokushin Electric Corp Auxiliary track switching system for magnetic disc
JPS583104A (en) * 1981-06-30 1983-01-08 Toshiba Corp Magnetic disc device

Also Published As

Publication number Publication date
JP2562605B2 (en) 1996-12-11

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