JPS5455138A - Input-output control system - Google Patents
Input-output control systemInfo
- Publication number
- JPS5455138A JPS5455138A JP12139777A JP12139777A JPS5455138A JP S5455138 A JPS5455138 A JP S5455138A JP 12139777 A JP12139777 A JP 12139777A JP 12139777 A JP12139777 A JP 12139777A JP S5455138 A JPS5455138 A JP S5455138A
- Authority
- JP
- Japan
- Prior art keywords
- data
- control data
- flag
- processed
- input
- 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
Abstract
PURPOSE: To ignore unneeded data by providing a disregard code flag to any bit position of a channel control word.
CONSTITUTION: Eight-bit control part has a continuation assignment flat at its head, which determines whether the next control data is processed or not after the data process in the control part. When this flag is set, the process assigned by the control data is interrupted and its restart depends on interruption signal ATN on the next channel dedicated bus. Namely, the next control data is processed after the reception of interruption signal ATN from an apparatus. In an OFF time with the flag reset, the process of the next control data is done continuously
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12139777A JPS5455138A (en) | 1977-10-12 | 1977-10-12 | Input-output control system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12139777A JPS5455138A (en) | 1977-10-12 | 1977-10-12 | Input-output control system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5455138A true JPS5455138A (en) | 1979-05-02 |
Family
ID=14810168
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12139777A Pending JPS5455138A (en) | 1977-10-12 | 1977-10-12 | Input-output control system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5455138A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5624626A (en) * | 1979-08-02 | 1981-03-09 | Nec Corp | Data processing system |
JPS62296258A (en) * | 1986-06-16 | 1987-12-23 | Fujitsu Ltd | Storage system for subchannel command word |
-
1977
- 1977-10-12 JP JP12139777A patent/JPS5455138A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5624626A (en) * | 1979-08-02 | 1981-03-09 | Nec Corp | Data processing system |
JPS62296258A (en) * | 1986-06-16 | 1987-12-23 | Fujitsu Ltd | Storage system for subchannel command word |
JPH0531778B2 (en) * | 1986-06-16 | 1993-05-13 | Fujitsu Kk |
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