JPS644975A - Magnetic disk controller - Google Patents
Magnetic disk controllerInfo
- 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
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.
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)
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 |
-
1987
- 1987-06-29 JP JP62161524A patent/JP2562605B2/en not_active Expired - Lifetime
Patent Citations (3)
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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