JPH0168531U - - Google Patents

Info

Publication number
JPH0168531U
JPH0168531U JP1987162059U JP16205987U JPH0168531U JP H0168531 U JPH0168531 U JP H0168531U JP 1987162059 U JP1987162059 U JP 1987162059U JP 16205987 U JP16205987 U JP 16205987U JP H0168531 U JPH0168531 U JP H0168531U
Authority
JP
Japan
Prior art keywords
chip microcomputer
state
key
keyboard
initializing
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.)
Granted
Application number
JP1987162059U
Other languages
English (en)
Other versions
JPH054032Y2 (ja
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP16205987U priority Critical patent/JPH054032Y2/ja
Publication of JPH0168531U publication Critical patent/JPH0168531U/ja
Application granted granted Critical
Publication of JPH054032Y2 publication Critical patent/JPH054032Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Input From Keyboards Or The Like (AREA)
  • Debugging And Monitoring (AREA)

Description

【図面の簡単な説明】
第１図は本考案の一実施例のブロツク図、第２
図は第１図における動作の概要を説明する図、第
３図は第２図におけるタイマ割込リセツト処理ル
ーチンの概要フローチヤートである。 １……キーマトリクス、２……ワンチツプマイ
コン、３……インタフエース回路、４……コネク
タ。

Claims (1)

    【実用新案登録請求の範囲】
  1. 制御用のワンチツプマイクロコンピユータを有
    するキーボードにおいて、一定周期ごとにキーマ
    トリクスの各キースイツチの状態を検出しすべて
    のキースイツチがオフの状態のときには前記ワン
    チツプマイクロコンピユータの初期化処理を行う
    手段を備えたことを特徴とするキーボード。
JP16205987U 1987-10-22 1987-10-22 Expired - Lifetime JPH054032Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16205987U JPH054032Y2 (ja) 1987-10-22 1987-10-22

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16205987U JPH054032Y2 (ja) 1987-10-22 1987-10-22

Publications (2)

Publication Number Publication Date
JPH0168531U true JPH0168531U (ja) 1989-05-02
JPH054032Y2 JPH054032Y2 (ja) 1993-02-01

Family

ID=31445545

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16205987U Expired - Lifetime JPH054032Y2 (ja) 1987-10-22 1987-10-22

Country Status (1)

Country Link
JP (1) JPH054032Y2 (ja)

Also Published As

Publication number Publication date
JPH054032Y2 (ja) 1993-02-01

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