JPS5588115A - Input-output subsystem - Google Patents
Input-output subsystemInfo
- Publication number
- JPS5588115A JPS5588115A JP16274178A JP16274178A JPS5588115A JP S5588115 A JPS5588115 A JP S5588115A JP 16274178 A JP16274178 A JP 16274178A JP 16274178 A JP16274178 A JP 16274178A JP S5588115 A JPS5588115 A JP S5588115A
- Authority
- JP
- Japan
- Prior art keywords
- input
- command
- output unit
- microprogram
- control memory
- 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 reduce the capacity of the control memory of an input-output device by storing a microprogram controlling the input-output unit in the memroy unit of the input-output unit, and then by supplying the microprogram in the operation of the input-output unit.
CONSTITUTION: Input-output controller 2 receives a command from main-body system unit 1, and decoding part 4 decodes it. On the basis of the decoding result, selection part 6 selects a micro-program in microprogram storage part 5 and sends and stores it in control memory 9 by way of driver 7, bus 13 and receiver 8. After the microprogram corresponding to the command is stored in control memory 9, input-output controller 2 sends an operation command to input-output unit 3. On receiving the operation command, input-output unit 3 reads the microinstruction from control memory 9 to perform a process corresponding to the command.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16274178A JPS5588115A (en) | 1978-12-27 | 1978-12-27 | Input-output subsystem |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16274178A JPS5588115A (en) | 1978-12-27 | 1978-12-27 | Input-output subsystem |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5588115A true JPS5588115A (en) | 1980-07-03 |
Family
ID=15760367
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16274178A Pending JPS5588115A (en) | 1978-12-27 | 1978-12-27 | Input-output subsystem |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5588115A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60167035A (en) * | 1984-02-10 | 1985-08-30 | Hitachi Ltd | Input and output controller |
JPH0633915U (en) * | 1992-10-08 | 1994-05-06 | 株式会社ウエルファン | pants |
-
1978
- 1978-12-27 JP JP16274178A patent/JPS5588115A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60167035A (en) * | 1984-02-10 | 1985-08-30 | Hitachi Ltd | Input and output controller |
JPH0633915U (en) * | 1992-10-08 | 1994-05-06 | 株式会社ウエルファン | pants |
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