JPH0426502B2 - - Google Patents
Info
- Publication number
- JPH0426502B2 JPH0426502B2 JP60095099A JP9509985A JPH0426502B2 JP H0426502 B2 JPH0426502 B2 JP H0426502B2 JP 60095099 A JP60095099 A JP 60095099A JP 9509985 A JP9509985 A JP 9509985A JP H0426502 B2 JPH0426502 B2 JP H0426502B2
- Authority
- JP
- Japan
- Prior art keywords
- transmission
- processing
- circuit
- communication control
- post
- 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.)
- Expired
Links
- 230000005540 biological transmission Effects 0.000 claims description 134
- 238000012545 processing Methods 0.000 claims description 85
- 238000004891 communication Methods 0.000 claims description 46
- 238000007781 pre-processing Methods 0.000 claims description 32
- 230000004913 activation Effects 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 4
- 238000012805 post-processing Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 1
- 230000010365 information processing Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
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- Computer And Data Communications (AREA)
- Communication Control (AREA)
Description
【発明の詳細な説明】
産業上の利用分野
この発明は情報処理装置に於ける通信制御装置
に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention relates to a communication control device in an information processing device.
従来の技術
従来、この種の通信制御装置は通信すべきデー
タの量も少なく、比較的低速なデータの通信を制
御していた。このために、通信制御装置自体の処
理時間がデータの通信時間に比べて充分無視しう
るものであつた。BACKGROUND ART Conventionally, this type of communication control device has controlled comparatively low-speed data communication with a small amount of data to be communicated. For this reason, the processing time of the communication control device itself can be ignored compared to the data communication time.
次に第３図及び第４図により従来の通信制御装
置を説明する。第３図に於いて、中央処理装置か
ら通信制御装置に対する送信開始指示により入出
力命令解読回路９は、入出力命令を解読し、送信
前処理回路１１に対して送信前処理回路起動指示
信号１０を送出する。送信前処理回路１１はこの
信号を受けると送信前処理を行なつてから送信回
路１３に対して送信起動指示信号１２を送出す
る。送信後処理回路１５は、送信回路１３からの
送信終了通知信号１４を持ち、送信後処理を行な
い送信処理完了通知１６を送出する。従来型式の
通信制御装置はこの後で次の送信開始命令を受け
付ける。 Next, a conventional communication control device will be explained with reference to FIGS. 3 and 4. In FIG. 3, in response to a transmission start instruction from the central processing unit to the communication control device, the input/output command decoding circuit 9 decodes the input/output command and sends a transmission preprocessing circuit activation instruction signal 10 to the transmission preprocessing circuit 11. Send out. When the transmission preprocessing circuit 11 receives this signal, it performs transmission preprocessing and then sends a transmission activation instruction signal 12 to the transmission circuit 13. The post-transmission processing circuit 15 has the transmission completion notification signal 14 from the transmission circuit 13, performs post-transmission processing, and sends out a transmission processing completion notification 16. The conventional communication control device then receives the next transmission start command.
以上の動作を第４図に送信処理フローとして示
す。 The above operation is shown in FIG. 4 as a transmission processing flow.
発明が解決しようとする問題点
しかしながら、近年、通信すべきデータの絶対
量、及び通信の処理回数が著しく増加し、高速な
データ通信が必要となつてきたために、この処理
時間が問題となつた。すなわち、従来の通信制御
装置では、データの送信は前述の送信前処理を行
ないその後に送信を行ない、最後に送信後処理を
行なうという一連の送信処理の後で、次の送信を
開始していた。従つて、この制御手順で高速デー
タ通信を行なうと、高速となつた通信をしている
時間に比べて通信制御装置自体の処理時間が無視
できず、処理件数が多くなると効率の悪い通信制
御とならざるを得ないという欠点があつた。Problems to be Solved by the Invention However, in recent years, the absolute amount of data to be communicated and the number of communication processing times have increased significantly, and high-speed data communication has become necessary, so the processing time has become a problem. . In other words, in conventional communication control devices, data transmission begins after a series of transmission processes, including the above-mentioned pre-transmission processing, then transmission, and finally post-transmission processing. . Therefore, when high-speed data communication is performed using this control procedure, the processing time of the communication control device itself cannot be ignored compared to the time for high-speed communication, and as the number of processes increases, communication control becomes inefficient. There was a drawback that it had to be done.
本発明は従来の技術に内在する上記欠点を解消
する為になされたものであり、従つて本発明の目
的は、送信開始指示が連続して指示された場合に
於いて、送信処理と送信前処理及び送信処理と送
信後処理を並行して動作させることにより、従来
の通信制御装置に比べ、同一時間内により多くの
データ通信を行ない、データ通信の効率を上げる
事にある。 The present invention has been made in order to eliminate the above-mentioned drawbacks inherent in the conventional technology, and therefore, an object of the present invention is to improve the transmission process and the pre-transmission process when transmission start instructions are consecutively issued. By operating processing, transmission processing, and post-transmission processing in parallel, the present invention is capable of communicating more data in the same amount of time compared to conventional communication control devices, thereby increasing the efficiency of data communication.
問題点を解決するための手段
上記目的を達成する為に、本発明に係る通信制
御装置は、記憶装置と該記憶装置中に格納されて
いる命令に従つて情報を処理する中央処理装置
と、通信制御装置からなるデータ処理システムに
於いて、中央処理装置からの通信制御装置に対す
る入出力命令の送信開始指示による回線及び通信
制御装置の状態確認、送信データの種別確認、
DMA転送等の送信前処理を行なう送信前処理回
路と、送信後の相手装置の応答確認、中央処理装
置への完了報告等の送信後処理を行なう送信後処
理回路と、これらの回路と並行して送信を行なう
送信回路とを具備して構成され、送信回路の送信
終了通知信号により送信前処理回路が起動され、
送信前処理回路の送信後処理回路起動指示信号に
より送信後処理回路が起動されることにより、中
央処理装置から通信制御装置に対して入出力命令
の送信開始指示が連続して指示された場合に、Ｎ
回目の送信開始指示による送信処理と、（Ｎ−１）
回目の送信開始指示による送信後処理を並行して
行ない、続けて（Ｎ＋１）回目の送信開始指示に
よる送信前処理を並行して行なうことを特徴とす
る。Means for Solving the Problems In order to achieve the above object, a communication control device according to the present invention includes a storage device and a central processing unit that processes information according to instructions stored in the storage device. In a data processing system consisting of a communication control device, the central processing unit instructs the communication control device to start sending input/output commands to check the status of the line and communication control device, confirm the type of transmitted data,
In parallel with these circuits, there is a pre-transmission processing circuit that performs pre-transmission processing such as DMA transfer, and a post-transmission processing circuit that performs post-transmission processing such as checking the response of the other device after transmission and reporting completion to the central processing unit. The transmission preprocessing circuit is activated by a transmission completion notification signal from the transmission circuit.
The post-transmission processing circuit is activated by the post-transmission processing circuit activation instruction signal of the transmission pre-processing circuit, so that when the central processing unit consecutively instructs the communication control device to start transmitting input/output commands, , N
Transmission processing according to the second transmission start instruction, and (N-1)
The present invention is characterized in that post-transmission processing based on the first transmission start instruction is performed in parallel, and then pre-transmission processing based on the (N+1)th transmission start instruction is performed in parallel.
発明の実施例
次に本発明をその好ましい一実施例について図
面を参照しながら具体的に説明する。Embodiments of the Invention Next, a preferred embodiment of the present invention will be specifically described with reference to the drawings.
第１図は本発明に係る通信制御装置の一実施例
を示すブロツク構成図であり、第２図は本発明の
送信処理動作フロー例を示す図である。 FIG. 1 is a block diagram showing an embodiment of a communication control device according to the present invention, and FIG. 2 is a diagram showing an example of a transmission processing operation flow of the present invention.
第１図において、参照番号１は入出力命令解読
回路、３は送信前処理回路、５は送信回路、７は
送信後処理回路をそれぞれ示す。 In FIG. 1, reference numeral 1 indicates an input/output command decoding circuit, 3 indicates a transmission pre-processing circuit, 5 indicates a transmitting circuit, and 7 indicates a post-transmission processing circuit.
第１図に於いて、中央処理装置（図示せず）よ
り通信制御装置に対する送信開始指示Ａが入出力
命令解読回路１に入力されると、入出力命令解読
回路１は、入出力命令を解読し、送信前処理回路
３に対して送信前処理回路起動指示信号２を送出
する。送信前処理回路３は、この信号を受けると
送信前処理を行ない、送信回路５に対して送信起
動指示信号４を送出する。送信回路５が送信開始
指示Ａに基づくデータを送信中に次の送信開始指
示Ｂを受け付けた入出力命令解読回路１は、入出
力命令を解読し、送信前処理回路３に対して送信
前処理回路起動指示信号２を送出する。送信前処
理回路３は、この信号を受けると送信前処理を行
ない、送信回路５が送信開始指示Ａに基づくデー
タの送信終了するまで待つ。送信開始指示Ａによ
るデータ送信が終了すると、送信回路５より送信
終了通知信号６が送出され、送信前処理回路３を
起動し、送信前処理回路３は送信開始指示Ｂの送
信起動指示信号４を送信回路５に対して送出す
る。続いて、送信前処理回路３より送信後処理回
路起動指示信号９が送出されて送信後処理回路７
が起動される。送信後処理回路７は、送信後処理
を終了すると、送信処理完了通知信号８を送出す
る。 In FIG. 1, when a transmission start instruction A to the communication control device is input from the central processing unit (not shown) to the input/output command decoding circuit 1, the input/output command decoding circuit 1 decodes the input/output command. Then, a transmission preprocessing circuit activation instruction signal 2 is sent to the transmission preprocessing circuit 3. When the transmission preprocessing circuit 3 receives this signal, it performs transmission preprocessing and sends a transmission activation instruction signal 4 to the transmission circuit 5. When the transmission circuit 5 receives the next transmission start instruction B while transmitting data based on the transmission start instruction A, the input/output command decoding circuit 1 decodes the input/output command and sends the transmission preprocessing circuit 3 to the transmission preprocessing circuit 3. A circuit activation instruction signal 2 is sent out. When the transmission preprocessing circuit 3 receives this signal, it performs transmission preprocessing and waits until the transmission circuit 5 finishes transmitting data based on the transmission start instruction A. When the data transmission according to the transmission start instruction A is completed, the transmission end notification signal 6 is sent from the transmission circuit 5, and the transmission preprocessing circuit 3 is activated. It is sent to the transmitting circuit 5. Subsequently, a post-transmission processing circuit activation instruction signal 9 is sent from the transmission pre-processing circuit 3 and the post-transmission processing circuit 7 is activated.
is started. When the post-transmission processing circuit 7 finishes the post-transmission processing, it sends out a transmission processing completion notification signal 8.
次に送信開始指示Ｂによるデータが送信中であ
れば、送信開始指示Ｃを受け付けた入出力命令解
読回路１は、入出力命令を解読し、送信前処理回
路３に対して送信前処理回路起動指示信号２を送
出する。送信前処理回路３は、この信号を受ける
と送信開始指示Ｃに基づくデータの送信前処理を
行ない、送信回路５が送信開始指示Ｂに基づくデ
ータの送信終了をするまで待つ。送信開始指示Ｂ
によるデータが終了すると、送信回路５より送信
終了通知信号６が送出されて送信前処理回路３を
起動し、送信前処理回路３は送信開始指示Ｃの送
信起動指示信号４を送信回路５に対して送出す
る。読いて、送信前処理回路３より送信後処理回
路起動指示信号９が送出されて送信後処理回路７
が起動される。送信後処理回路７は送信後処理が
終了すると送信処理完了通知信号８を送出する。
このように送信回路５がデータ送信中に送信開始
指示の受け付けから送信前処理までの処理及び送
信後処理から送信処理完了通知信号の送出までの
処理が行なわれる。 Next, if the data according to the transmission start instruction B is being transmitted, the input/output command decoding circuit 1 that has received the transmission start instruction C decodes the input/output command and activates the transmission preprocessing circuit for the transmission preprocessing circuit 3. Send out instruction signal 2. Upon receiving this signal, the transmission preprocessing circuit 3 performs pretransmission processing of data based on the transmission start instruction C, and waits until the transmission circuit 5 finishes transmitting data based on the transmission start instruction B. Transmission start instruction B
When the data is completed, the transmission circuit 5 sends a transmission end notification signal 6 to activate the transmission preprocessing circuit 3, and the transmission preprocessing circuit 3 sends a transmission start instruction signal 4 of the transmission start instruction C to the transmission circuit 5. and send it. Then, the post-transmission processing circuit activation instruction signal 9 is sent from the transmission pre-processing circuit 3 and the post-transmission processing circuit 7 is read.
is started. The post-transmission processing circuit 7 sends out a transmission processing completion notification signal 8 when the post-transmission processing is completed.
In this way, while the transmitting circuit 5 is transmitting data, processing from receiving a transmission start instruction to pre-transmission processing, and processing from post-transmission processing to sending out a transmission processing completion notification signal are performed.
以上の動作を第２図に送信処理フローとして示
す。 The above operation is shown in FIG. 2 as a transmission processing flow.
従来の通信制御装置の送信処理フロー（第４
図）と本発明による通信制御装置の送信処理フロ
ー（第２図）に於いて、送信前処理起動指示信
号、送信起動指示信号、送信終了通知信号、送信
処理完了通知信号の時間は充分無視しうるものと
して計算を行なつた。 Transmission processing flow of conventional communication control device (4th
In the transmission processing flow (Fig. 2) of the communication control device according to the present invention, the times of the transmission preprocessing activation instruction signal, transmission activation instruction signal, transmission end notification signal, and transmission processing completion notification signal are sufficiently ignored. I did the calculations assuming that it was possible.
従来の通信制御装置の送信処理フロー（第４
図）と本発明による通信制御装置の送信処理フロ
ー（第２図）を比較すると、本発明による通信制
御装置では送信回路と送信前処理回路及び送信回
路と送信後処理回路が並行して動作するために、
Ｎ個の入出力命令による送信開始指示の実時間は
従来の通信制御装置の実時間T6×Ｎに比べ本発
明による通信制御装置の実時間T3は短かくなる。
又、本発明による通信制御装置の送信前処理時間
T1、送信後処理時間T2及び従来の通信制御装置
の送信前処理時間T4、送信後処理時間T5が全て
等しくデータの送信時間がこれらの２倍の場合に
於いて、送信の処理回数Ｎが１に比べて非常に大
きい場合、本発明は最大の効果を表わし、従来の
通信制御装置の実時間T6×Ｎに比べて本発明に
よる通信制御装置の実時間T3は1/2になる事が判
る。 Transmission processing flow of conventional communication control device (4th
Comparing the transmission processing flow (Fig. 2) of the communication control device according to the present invention with the transmission processing flow (Fig. for,
The actual time T 3 of the communication control device according to the present invention is shorter than the real time T 6 ×N of the conventional communication control device for the transmission start instruction based on N input/output commands.
Moreover, the transmission preprocessing time of the communication control device according to the present invention
T 1 , post-transmission processing time T 2 , pre-transmission processing time T 4 , and post-transmission processing time T 5 of the conventional communication control device are all equal, and when the data transmission time is twice these, the transmission processing When the number of times N is very large compared to 1, the present invention exhibits the greatest effect, and the real time T 3 of the communication control device according to the invention is 1/ compared to the real time T 6 ×N of the conventional communication control device. It turns out that it will be 2.
発明が効果
本発明によれば、以上説明したように、Ｎ回の
連続した送信開始指示が指示された場合に、送信
前処理及び送信後処理と送信処理を並行して行な
う事により、送信開始指示が指示されてから送信
が終了するまでの時間を短縮できるという効果が
得られる。Effects of the Invention According to the present invention, as explained above, when N consecutive transmission start instructions are given, transmission can be started by performing transmission pre-processing, post-transmission processing, and transmission processing in parallel. This has the effect of shortening the time from when an instruction is given until the end of transmission.
第１図は本発明による通信制御装置の一実施例
を示す送信部ブロツク構成図、第２図は本発明に
よる送信処理フロー例を示す図、第３図は従来の
通信制御装置の送信ブロツク図、第４図は従来の
送信処理フローを示す図である。
１，９…入出力命令解読回路、２，１０…送信
前処理回路起動指示信号、３，１１…送信前処理
回路、４，１２…送信起動指示信号、５，１３…
送信回路、６，１４…送信終了通知信号、７，１
５…送信後処理回路、８，１６…送信処理完了通
知信号、９…送信後処理回路起動指示信号、T1
…本発明による通信制御装置に於ける送信前処理
の実時間、T2…本発明による通信制御装置に於
ける送信後処理の実時間、T3…本発明による通
信制御装置における中央処理装置から送信開始指
示がＮ回連続指示された場合の送信処理開始から
送信処理終了までの実時間、T4…従来の通信制
御装置に於ける送信前処理の実時間、T5…従来
の通信制御装置に於ける送信後処理の実時間、
T6…従来の通信制御装置に於ける中央処理装置
から送信開始指示が１回指示された場合の送信処
理開始から送信処理終了までの実時間。
FIG. 1 is a block diagram of a transmitter block showing an embodiment of a communication control device according to the present invention, FIG. 2 is a diagram showing an example of a transmission processing flow according to the present invention, and FIG. 3 is a block diagram of a transmission section of a conventional communication control device. , FIG. 4 is a diagram showing a conventional transmission processing flow. 1, 9... I/O command decoding circuit, 2, 10... Transmission pre-processing circuit activation instruction signal, 3, 11... Transmission pre-processing circuit, 4, 12... Transmission activation instruction signal, 5, 13...
Transmission circuit, 6, 14... Transmission end notification signal, 7, 1
5... Post-transmission processing circuit, 8, 16... Transmission processing completion notification signal, 9... Post-transmission processing circuit activation instruction signal, T 1
…Real time of pre-transmission processing in the communication control device according to the present invention, T 2 …Real time of post-transmission processing in the communication control device according to the present invention, T 3 … From the central processing unit in the communication control device according to the present invention Actual time from the start of transmission processing to the end of transmission processing when transmission start instructions are given N times in succession, T 4 ...Real time of transmission pre-processing in a conventional communication control device, T5 ...Conventional communication control device The actual time of post-transmission processing in
T 6 ...Actual time from the start of transmission processing to the end of transmission processing when a transmission start instruction is issued once from the central processing unit in a conventional communication control device.
Claims (1)
令に従つて情報を処理する中央処理装置と通信制
御装置からなるデータ処理システムに於いて、中
央処理装置からの通信制御装置に対する入出力命
令の送信開始指示による回線及び通信制御装置の
状態確認、送信データの種別確認、DMA転送等
の送信前処理を行う送信前処理回路と、送信後の
相手装置の応答確認、中央処理装置への完了報告
等の送信後処理を行う送信後処理回路と、前記送
信前処理回路及び送信後処理回路と並行して送信
を行う送信回路とを具備し、 前記送信前処理回路は、送信開始指示により起
動されて送信前処理を行い、送信前処理が終了
し、前記送信回路における送信終了に応じて前記
送信回路から送出される送信終了通知信号を受け
ると、送信起動指示信号を送出し、 前記送信回路は、前記送信起動指示信号により
起動されて送信処理を行い、 前記送信後処理回路は、前記終了通知信号に応
じて起動されて後処理を行う、 ことを特徴とする通信制御装置。[Scope of Claims] 1. In a data processing system consisting of a storage device, a central processing unit that processes information according to instructions stored in the storage device, and a communication control device, communication control from the central processing unit is provided. A transmission pre-processing circuit that performs pre-transmission processing such as checking the status of the line and communication control device by instructing the device to start transmitting input/output commands, checking the type of transmitted data, and DMA transfer, and checking the response of the other device after transmission, the central The pre-transmission processing circuit includes a post-transmission processing circuit that performs post-transmission processing such as reporting completion to a processing device, and a transmission circuit that performs transmission in parallel with the pre-transmission processing circuit and the post-transmission processing circuit. It is activated by a transmission start instruction to perform transmission pre-processing, and when the transmission pre-processing is completed and receives a transmission end notification signal sent from the transmission circuit in response to the end of transmission in the transmission circuit, it sends out a transmission start instruction signal. Communication control characterized in that: the transmission circuit is activated by the transmission activation instruction signal to perform transmission processing; and the transmission post-processing circuit is activated in response to the end notification signal to perform post-processing. Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60095099A JPS61253566A (en) | 1985-05-02 | 1985-05-02 | Communication controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60095099A JPS61253566A (en) | 1985-05-02 | 1985-05-02 | Communication controller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61253566A JPS61253566A (en) | 1986-11-11 |
| JPH0426502B2 true JPH0426502B2 (en) | 1992-05-07 |
Family
ID=14128430
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60095099A Granted JPS61253566A (en) | 1985-05-02 | 1985-05-02 | Communication controller |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61253566A (en) |
-
1985
- 1985-05-02 JP JP60095099A patent/JPS61253566A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61253566A (en) | 1986-11-11 |
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