JPS5543655A - Input/output control system - Google Patents
Input/output control systemInfo
- Publication number
- JPS5543655A JPS5543655A JP11652078A JP11652078A JPS5543655A JP S5543655 A JPS5543655 A JP S5543655A JP 11652078 A JP11652078 A JP 11652078A JP 11652078 A JP11652078 A JP 11652078A JP S5543655 A JPS5543655 A JP S5543655A
- Authority
- JP
- Japan
- Prior art keywords
- input
- output
- control unit
- channel
- command
- 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
Landscapes
- Hardware Redundancy (AREA)
Abstract
PURPOSE: To reduce greatly the load of the software by starting the 2nd input/output channel via the input/output channel control unit while the 1st input/output channel is carrying out the preceding commond and then executing the command via the input/output control unit.
CONSTITUTION: The input/output order given from program 1 is decoded at CPU2 to start channel control unit CH3 by input/output channel control unit CHC9 and via channel 10a. Then CH3 makes the input/output unit carry out the input/output order through input/output control unit IOC-1 if its own device is operative. In case CH3 is executing the preceding command, the busy signal is sent back to CHC9 via bus 10a with no command sent to IOC5-1. Thus CHC9 carries out the command via IOC5-2 for CH4, and as a result the dual channel operation can be given with no intervention of the software. In such way, the load of the software can be reduced greatly.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11652078A JPS5543655A (en) | 1978-09-25 | 1978-09-25 | Input/output control system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11652078A JPS5543655A (en) | 1978-09-25 | 1978-09-25 | Input/output control system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5543655A true JPS5543655A (en) | 1980-03-27 |
Family
ID=14689163
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11652078A Pending JPS5543655A (en) | 1978-09-25 | 1978-09-25 | Input/output control system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5543655A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6184741A (en) * | 1984-09-29 | 1986-04-30 | Hitachi Ltd | Interruption control system |
JPH05143484A (en) * | 1992-05-13 | 1993-06-11 | Hitachi Ltd | Interrupt control method |
-
1978
- 1978-09-25 JP JP11652078A patent/JPS5543655A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6184741A (en) * | 1984-09-29 | 1986-04-30 | Hitachi Ltd | Interruption control system |
JPH05143484A (en) * | 1992-05-13 | 1993-06-11 | Hitachi Ltd | Interrupt control method |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS5543655A (en) | Input/output control system | |
JPS5730068A (en) | Data processing system | |
JPS54146541A (en) | Information process system | |
JPS5495133A (en) | Input/output processing control system | |
JPS5324743A (en) | Bus selector for electronic computer | |
JPS54137256A (en) | Multi-processor equipment | |
JPS54530A (en) | Reference control unit of memory | |
JPS5559579A (en) | Sequence controller | |
JPS5616361A (en) | Facsimile device | |
JPS5252338A (en) | Allotting device of input/output unit machine number | |
JPS52131436A (en) | Interruption control system | |
JPS55108053A (en) | Microprogram high speed control system | |
JPS55112639A (en) | Analog data processing system | |
JPS5478644A (en) | Interruption control system | |
JPS5490943A (en) | Information processing system | |
JPS55105753A (en) | Interruption waiting system | |
JPS5561837A (en) | Channel control system | |
JPS5379448A (en) | Input/output control interface system | |
JPS545340A (en) | Control system for input and output unit | |
JPS5566015A (en) | Shared line state detection system | |
JPS54534A (en) | Advance control system of instruction in information processor | |
JPS5437645A (en) | Computer system | |
JPS5292448A (en) | I/o unit control system | |
JPS5580140A (en) | Inter-channel communication system | |
JPS5674747A (en) | Parallel operation system |