JPS5776624A - Input and output control adapter - Google Patents
Input and output control adapterInfo
- Publication number
- JPS5776624A JPS5776624A JP55153095A JP15309580A JPS5776624A JP S5776624 A JPS5776624 A JP S5776624A JP 55153095 A JP55153095 A JP 55153095A JP 15309580 A JP15309580 A JP 15309580A JP S5776624 A JPS5776624 A JP S5776624A
- Authority
- JP
- Japan
- Prior art keywords
- information
- adapter
- magnetic disk
- cross
- control adapter
- 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
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/40—Bus structure
- G06F13/4004—Coupling between buses
- G06F13/4022—Coupling between buses using switching circuits, e.g. switching matrix, connection or expansion network
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Mathematical Physics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
Abstract
PURPOSE:To prevent data from being destroyed by providing every adapter with a storage means of storing the state of coupling between an input-output device and a host device which performs transfer through all buses. CONSTITUTION:An information transfer control means updates reserve information and in-use display information, set from either one of magnetic disk controllers DC#0 and DC#1, in both cross-call information memories M#0 and M#1 simultaneously. When a power source S#0 or S#1 for one magnetic disk control adapter is put to work and when the adapter disconnected from a magnetic disk controller is enabled to be coupled, necessary cross information in a cross call information memory in the other magnetic control adapter in operation is written in a cross call information in the former magnetic disk control adapter right after the power source is put to work or when its coupling operation operation is enabled.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55153095A JPS5776624A (en) | 1980-10-31 | 1980-10-31 | Input and output control adapter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55153095A JPS5776624A (en) | 1980-10-31 | 1980-10-31 | Input and output control adapter |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5776624A true JPS5776624A (en) | 1982-05-13 |
JPS617663B2 JPS617663B2 (en) | 1986-03-07 |
Family
ID=15554858
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP55153095A Granted JPS5776624A (en) | 1980-10-31 | 1980-10-31 | Input and output control adapter |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5776624A (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6389455U (en) * | 1986-12-01 | 1988-06-10 | ||
JPH053729U (en) * | 1991-02-20 | 1993-01-22 | 三菱自動車エンジニアリング株式会社 | Mechanism to prevent simultaneous meshing of transmissions |
-
1980
- 1980-10-31 JP JP55153095A patent/JPS5776624A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS617663B2 (en) | 1986-03-07 |
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