JPH0314768U - - Google Patents
Info
- Publication number
- JPH0314768U JPH0314768U JP7211289U JP7211289U JPH0314768U JP H0314768 U JPH0314768 U JP H0314768U JP 7211289 U JP7211289 U JP 7211289U JP 7211289 U JP7211289 U JP 7211289U JP H0314768 U JPH0314768 U JP H0314768U
- Authority
- JP
- Japan
- Prior art keywords
- magnetic disk
- disk device
- outputting
- diagram showing
- utility
- 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
Links
- 238000010586 diagram Methods 0.000 description 6
Description
第１図はこの考案の一実施例における磁気デイ
スク装置のインデツクス位置、及びフオーマツト
形式を示した図、第２図はこの考案の一実施例に
おけるデイスクアクセスの実施例を示す図、第３
図は磁気デイスク装置の一般的な構成図、第４図
は一般的なデイスクアクセスの際のコントローラ
の処理を示すフローチヤート、第５図は第４図に
対応したデイスクの状態図、第６図は従来の磁気
デイスク装置における１トラツクのフオーマツト
形式を表す図、また第７図は従来の磁気デイスク
装置のデータアクセスの一実施例を示す図である
。
図において、１９……インデツクスパルス、２
１……セクターＮ、２２……インデツクス２、で
ある。なお、図中、同一符号は同一、または相当
部分を示す。
FIG. 1 is a diagram showing the index position and format of a magnetic disk device in one embodiment of this invention, FIG. 2 is a diagram showing an example of disk access in one embodiment of this invention, and FIG.
Figure 4 is a general configuration diagram of a magnetic disk device, Figure 4 is a flowchart showing controller processing during general disk access, Figure 5 is a disk state diagram corresponding to Figure 4, and Figure 6. 7 is a diagram showing the format of one track in a conventional magnetic disk device, and FIG. 7 is a diagram showing an example of data access in the conventional magnetic disk device. In the figure, 19...index pulse, 2
1... Sector N, 22... Index 2. In addition, in the figures, the same reference numerals indicate the same or corresponding parts.
Claims (1)
の基準位置を示すインデツクス信号を１回転につ
き２回、出力する機能を備えたことを特徴とする
磁気デイスク装置。 1. A rotary magnetic disk device comprising a function of outputting an index signal indicating a reference position of the disk twice per rotation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7211289U JPH0314768U (en) | 1989-06-20 | 1989-06-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7211289U JPH0314768U (en) | 1989-06-20 | 1989-06-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0314768U true JPH0314768U (en) | 1991-02-14 |
Family
ID=31609757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7211289U Pending JPH0314768U (en) | 1989-06-20 | 1989-06-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0314768U (en) |
-
1989
- 1989-06-20 JP JP7211289U patent/JPH0314768U/ja active Pending
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