JPS6020659U - input/output control device - Google Patents
input/output control deviceInfo
- Publication number
- JPS6020659U JPS6020659U JP9269684U JP9269684U JPS6020659U JP S6020659 U JPS6020659 U JP S6020659U JP 9269684 U JP9269684 U JP 9269684U JP 9269684 U JP9269684 U JP 9269684U JP S6020659 U JPS6020659 U JP S6020659U
- Authority
- JP
- Japan
- Prior art keywords
- input
- request
- processor
- bus
- output
- 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
- Multi Processors (AREA)
- Bus Control (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
図は本考案の一実施例を示す構成図である。
１０：＃０プロセッサ、１１ ：＃１プロセッサ、２０
：入力制御装置、２１：要求検出回路、２２：バス回路
、２３：シーケンシャルカウンタ、２４：マイクゴ制御
部、２５：内部バス、２６：入出力制御部、３１．３２
：起動要求信号線、３３．３４：入出力バス線。The figure is a configuration diagram showing an embodiment of the present invention. 10: #0 processor, 11: #1 processor, 20
: input control device, 21: request detection circuit, 22: bus circuit, 23: sequential counter, 24: microphone control section, 25: internal bus, 26: input/output control section, 31.32
: Start request signal line, 33.34: Input/output bus line.
Claims (1)
アクセスする場合に生ずる起動要求の競合および入出力
のバスの接続を制御するバス選択方式において、プロセ
ッサの番号を指定するシーケンシャルカウンタと、該シ
ーケンシャルカウンタの値で示されるプロセッサ番号と
該プロセッサよりの起動要求信号の有無により起動要求
の検出を行なう要求検出回路と、前記シーケンシャルカ
ウンタのＩｆＦｌ’示されるプロセッサの入出力バスを
選択し、入出力制御装置の内部バスと接続するバス回路
と、前記要求検出回路の信号をテストし、また前記シー
ケンシャルカウンタの歩進を行なわせるマイクロプログ
ラム制御部とを備え、該マイクロプログラム制御部は入
出力制御を実行していない時にプロセッサからの起動要
求検出を行ない、要求有りの場合は前記シーケンシャル
カウンタの値に従って該当する入出力バスを内部ハスに
接続し、また要求無しの場合は前記シーケンシャルカウ
ンタを順次歩進させてプロセッサからの起動要求検出を
行なうことを特徴とする入出力制御装置。In a bus selection method that controls startup request conflicts and input/output bus connections that occur when multiple processors access one input/output control device, a sequential counter that specifies the processor number and a sequential A request detection circuit detects a startup request based on the processor number indicated by the counter value and the presence or absence of a startup request signal from the processor, selects the input/output bus of the processor indicated by IfFl' of the sequential counter, and controls the input/output. The device includes a bus circuit connected to an internal bus of the device, and a microprogram control unit that tests the signal of the request detection circuit and increments the sequential counter, and the microprogram control unit executes input/output control. When there is no request, a startup request from the processor is detected, and if there is a request, the corresponding input/output bus is connected to the internal bus according to the value of the sequential counter, and if there is no request, the sequential counter is sequentially incremented. An input/output control device that detects a startup request from a processor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9269684U JPS6020659U (en) | 1984-06-21 | 1984-06-21 | input/output control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9269684U JPS6020659U (en) | 1984-06-21 | 1984-06-21 | input/output control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6020659U true JPS6020659U (en) | 1985-02-13 |
Family
ID=30223034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9269684U Pending JPS6020659U (en) | 1984-06-21 | 1984-06-21 | input/output control device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6020659U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63191264A (en) * | 1987-02-04 | 1988-08-08 | Hitachi Ltd | Parallel processing computer |
-
1984
- 1984-06-21 JP JP9269684U patent/JPS6020659U/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63191264A (en) * | 1987-02-04 | 1988-08-08 | Hitachi Ltd | Parallel processing computer |
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