JPS5839633U

JPS5839633U - Microcomputer input/output control device

Info

Publication number: JPS5839633U
Application number: JP13383981U
Authority: JP
Inventors: 美津男小林
Original assignee: 日本電気株式会社
Priority date: 1981-09-09
Filing date: 1981-09-09
Publication date: 1983-03-15

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

[Brief explanation of drawings]

第１図は本考案および従来のマイクロコンピュータの入
出力制御装置を含むシステム構成図、第２図は従来の一
例を示すブロック図、第３図は本考案の一実施例を示す
ブロック図である。１・・・・・・マイクロコンピュータ、２；　　２Ａ、
　　２Ｂ・・・・・・入出力制御装置、３・・・・・・
被制御装置、５・・・・・・入力バッファ、６・・・・
・・出力バッファ、７．　７’・・・・・・入力用命令
デコーダ、８，８′・・・・・・出力用命令デコーダ、
９・・・・・・データ入力制御信号線、１０・・・・・
・コントロール入力制御信号線、１１・・・・・・デー
タ人力ライン、１２・・・・・・データ出力制御信号線
、１３・・・・・・コントロール出力制御信号線、１４
・・・・・・データ出力ライン、１５・・・・・・デー
タ入力制御信号線、１６・・・・・・コントロール入力
制御信号線、１７・・・・・・入出力データライン、１
８・・・・・・出力表示線。FIG. 1 is a system configuration diagram including the present invention and a conventional microcomputer input/output control device, FIG. 2 is a block diagram showing an example of the conventional method, and FIG. 3 is a block diagram showing an embodiment of the present invention. . 1...Microcomputer, 2; 2A,
2B...Input/output control device, 3...
Controlled device, 5... Input buffer, 6...
...output buffer, 7. 7'...Input instruction decoder, 8,8'...Output instruction decoder,
9... Data input control signal line, 10...
・Control input control signal line, 11... Data human power line, 12... Data output control signal line, 13... Control output control signal line, 14
......Data output line, 15...Data input control signal line, 16...Control input control signal line, 17...Input/output data line, 1
8...Output display line.

Claims

[Scope of utility model registration request]

an output instruction decoder that outputs a control output control signal when outputting control information, outputs a data output control signal when outputting data information, and outputs an output display signal when outputting the control information and the data information;
an output buffer that outputs first control information when outputting the control information and outputs first data information when outputting the data information; and a control output control signal line for transmitting the control output control signal to a controlled device. , a data output control signal line for transmitting the data output control signal to the controlled device, and a control input control signal that transmits the control information and the data information to the controlled device and is supplied from the controlled device. and a second control information and data input control signal provided subsequent to the control input control signal and a second control information and data input control signal provided subsequent to the data input control signal.
an input/output data line for transmitting data information;
an input command decoder into which the control input control signal is input when control information is input when the output display signal is not present, and the data input control signal can be input when data information is input; and the second control decoder when the control information is input. An input/output control device for a microcomputer, comprising an input buffer into which information is input and into which the second data information is input when the data information is input.