JPS6039163U

JPS6039163U - External input/output device

Info

Publication number: JPS6039163U
Application number: JP13106583U
Authority: JP
Inventors: 誠高野; 一義尾嶝
Original assignee: 株式会社日立製作所
Priority date: 1983-08-26
Filing date: 1983-08-26
Publication date: 1985-03-18

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図は従来方式の外部入力カードのブロック構成図、
第２図は従来方式め外部出力カードのブロック構成図、
第３図は本考案の一実施例を示すブロック構成図、第４
図は本考案の他の実施例を示すブロック構成図、第５図
は本考案の外部入力カニド構成図、第６図は本考案の外
部出力カード構成図、第７図ａ、　ｂおよび第８図ａ、
　ｂは本考案のカードコード説明図である。１：入力データバス、２：カード・セレクト信号、３：
外部入力信号受信回路部、４：絶縁回路、部、５：外部
入力受信端子、６：出力データパス、７：ライト・スト
ローブ信号、８：クリア信号、９：フリップフロップ、
１０：外部出力回路部、１１：外部出力端子、１２二力
−ド内制御信号生成回路、１３：カードコード生成回路
、１４：リード・ライト選択信号、’ｉ）ｓ　：外部入
出力コントロール信号、１６二人出カブロック切換回路
、１７：書き込みストローブ信号、１８：力−ド・コー
ド出力指令信号。Figure 1 is a block diagram of a conventional external input card.
Figure 2 is a block diagram of a conventional external output card.
FIG. 3 is a block diagram showing one embodiment of the present invention;
The figure is a block diagram showing another embodiment of the present invention, Figure 5 is a diagram showing the configuration of an external input card of the present invention, Figure 6 is a diagram showing the configuration of an external output card of the present invention, and Figures 7 a, b, and 8. Figure a,
b is an explanatory diagram of the card code of the present invention. 1: Input data bus, 2: Card select signal, 3:
External input signal receiving circuit section, 4: Isolation circuit section, 5: External input receiving terminal, 6: Output data path, 7: Write strobe signal, 8: Clear signal, 9: Flip-flop,
10: external output circuit section, 11: external output terminal, 12 internal control signal generation circuit, 13: card code generation circuit, 14: read/write selection signal, 'i)s: external input/output control signal, 16: Two output block switching circuit, 17: Write strobe signal, 18: Power code output command signal.

Claims

[Scope of utility model registration request]

In an external input/output device consisting of n blocks with m points for external input/output per card, select which block to read and write the input/output status of these blocks. It has a decoding circuit that generates a selection signal that specifies the output of the card code that recognizes whether the external input/output device is input or output, and how many blocks (number of cards) it has, Card code 7
An external input/output device that can share the output line with the P I/O path line and configure external input/output of 8 points, 16 points, and 32 points in the same shape.