JPS5873657U - Communication control device - Google Patents
Communication control deviceInfo
- Publication number
- JPS5873657U JPS5873657U JP16701681U JP16701681U JPS5873657U JP S5873657 U JPS5873657 U JP S5873657U JP 16701681 U JP16701681 U JP 16701681U JP 16701681 U JP16701681 U JP 16701681U JP S5873657 U JPS5873657 U JP S5873657U
- Authority
- JP
- Japan
- Prior art keywords
- register
- data
- memory
- control device
- communication 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
- Computer And Data Communications (AREA)
- Communication 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
第１図は本考案を通信制御装置の回線走査機構に適用し
た例のブロック図、第２図はデータ送信時の第１図にお
けるＳＤ線およびＣＤ線の状態を示す図である。第３図
および第４図はＣＤオフと監視してデータ送信を行なう
必要性の説明に用いる図である。
１・・・・・・主制御ユニット、２−・・・・・・デー
タ格納メモリ、３・・・・・・第１送信レジスタ、４・
・・・・・第２送信レジスタ、５・・・・・・１キャラ
クタ送信完了検出回路、６・・・・・・ＣＤオフ監視回
路、７・・・・・・アドレス発生回路、訃・・・・・第
２送信レジスタセツト信号、９・・・・・・第１送信レ
ジスタセツト信号、１０・・・・・・アドレス更新指示
信号、１１・・・・・・送信データ書込みバス、１２・
・・・・・データ書込み指示信号、１３・・・・・・ア
ドレスバス、１−４・・・・・−３Ｄ線（送信データ）
、１５・・・・・・ＣＤ線（キャリア検出）。
７７′１
１ ／／
図FIG. 1 is a block diagram of an example in which the present invention is applied to a line scanning mechanism of a communication control device, and FIG. 2 is a diagram showing the states of the SD line and CD line in FIG. 1 during data transmission. FIGS. 3 and 4 are diagrams used to explain the necessity of monitoring the CD off and transmitting data. DESCRIPTION OF SYMBOLS 1... Main control unit, 2... Data storage memory, 3... First transmission register, 4...
...Second transmission register, 5...1 character transmission completion detection circuit, 6...CD off monitoring circuit, 7...address generation circuit, death... ...Second transmission register set signal, 9...First transmission register set signal, 10...Address update instruction signal, 11...Transmission data write bus, 12.
...Data write instruction signal, 13...Address bus, 1-4...-3D line (transmission data)
, 15...CD line (carrier detection). 77'1 1 // Figure
Claims (1)
、データの送受信を行なう通信制御装置において、送信
データを格納す乞メモリと、該メモリから読み出した送
信データを格納する第１めレジスタと、該第１のレジス
タ内の送信データを取り込んで回線へビット直列に送出
するために用いる第２のレジスタを有し、モデムインタ
フェースのＣＤ信号を監視してＣＤ信号がオフとなるま
では、第１のレジスタに置かれたデータを繰り返し送出
する手段と、ＣＤ信号がオフになるとメモリに格納され
ているデータを第１のレジスタに読み出し送信し、それ
以降は、順次メモリからデータを読み出して第１のレジ
スタにセットしてデータ送信を行なう手段とを有するこ
とを特徴とする通、信制御装置。A communication control device connected to a terminal device or the like via a modem and a communication line to transmit and receive data includes a memory for storing transmission data, a first register for storing transmission data read from the memory; It has a second register used to take in the transmission data in the first register and send it out in bit series to the line, and monitors the CD signal of the modem interface until the CD signal is turned off. means for repeatedly sending the data stored in the register, and when the CD signal is turned off, the data stored in the memory is read and sent to the first register, and after that, the data is sequentially read from the memory and sent to the first register. 1. A communication control device comprising means for setting data in a register and transmitting data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16701681U JPS5873657U (en) | 1981-11-11 | 1981-11-11 | Communication control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16701681U JPS5873657U (en) | 1981-11-11 | 1981-11-11 | Communication control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5873657U true JPS5873657U (en) | 1983-05-18 |
Family
ID=29959139
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16701681U Pending JPS5873657U (en) | 1981-11-11 | 1981-11-11 | Communication control device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5873657U (en) |
-
1981
- 1981-11-11 JP JP16701681U patent/JPS5873657U/en active Pending
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