JPS55157023A - Input and output control unit - Google Patents
Input and output control unitInfo
- Publication number
- JPS55157023A JPS55157023A JP6546979A JP6546979A JPS55157023A JP S55157023 A JPS55157023 A JP S55157023A JP 6546979 A JP6546979 A JP 6546979A JP 6546979 A JP6546979 A JP 6546979A JP S55157023 A JPS55157023 A JP S55157023A
- Authority
- JP
- Japan
- Prior art keywords
- input
- unit
- ioc2
- control unit
- output control
- 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
- Debugging And Monitoring (AREA)
Abstract
PURPOSE: To speed up the response of status information to open a central processing unit from the input and output unit, by providing the unit status buffer corresponding to each input and output unit in the input and output control unit.
CONSTITUTION: When the command instruction from a CPU1 is received with an input and output control unit IOC2, the IOC2 performs the pickup and analysis of status information related to the IOC2 including the command check immediately and stores the result in a controller status buffer CSB4. After that, the pickup and analysis for the status information of the input and putput unit I/O requiring much time are not directly made, and the content of the unit status buffer USB#K7 fetching in advance the information relating to the designated input and output unit I/O#K11 is read out, and after this and the content of CSB4 are edited into the format designated at an edition circuit 3, response is made to the CPU1.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6546979A JPS55157023A (en) | 1979-05-25 | 1979-05-25 | Input and output control unit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6546979A JPS55157023A (en) | 1979-05-25 | 1979-05-25 | Input and output control unit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55157023A true JPS55157023A (en) | 1980-12-06 |
Family
ID=13287998
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6546979A Pending JPS55157023A (en) | 1979-05-25 | 1979-05-25 | Input and output control unit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55157023A (en) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4978452A (en) * | 1972-11-29 | 1974-07-29 | ||
JPS5243333A (en) * | 1975-10-01 | 1977-04-05 | Hitachi Ltd | Information processing device |
JPS52119135A (en) * | 1976-03-31 | 1977-10-06 | Toshiba Corp | Transferring of status |
JPS5495133A (en) * | 1978-01-13 | 1979-07-27 | Mitsubishi Electric Corp | Input/output processing control system |
-
1979
- 1979-05-25 JP JP6546979A patent/JPS55157023A/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4978452A (en) * | 1972-11-29 | 1974-07-29 | ||
JPS5243333A (en) * | 1975-10-01 | 1977-04-05 | Hitachi Ltd | Information processing device |
JPS52119135A (en) * | 1976-03-31 | 1977-10-06 | Toshiba Corp | Transferring of status |
JPS5495133A (en) * | 1978-01-13 | 1979-07-27 | Mitsubishi Electric Corp | Input/output processing control system |
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