JPS59186893U - cathode ray tube display device - Google Patents

cathode ray tube display device

Info

Publication number
JPS59186893U
JPS59186893U JP8120283U JP8120283U JPS59186893U JP S59186893 U JPS59186893 U JP S59186893U JP 8120283 U JP8120283 U JP 8120283U JP 8120283 U JP8120283 U JP 8120283U JP S59186893 U JPS59186893 U JP S59186893U
Authority
JP
Japan
Prior art keywords
erase
display device
ray tube
cathode ray
tube display
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
Application number
JP8120283U
Other languages
Japanese (ja)
Inventor
内海　良成
Original Assignee
日本電気ホームエレクトロニクス株式会社
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 by 日本電気ホームエレクトロニクス株式会社 filed Critical 日本電気ホームエレクトロニクス株式会社
Priority to JP8120283U priority Critical patent/JPS59186893U/en
Publication of JPS59186893U publication Critical patent/JPS59186893U/en
Pending legal-status Critical Current

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  • Digital Computer Display Output (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) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は従来のイレーズ回路を備えた陰極線管ディスプ
レイ装置の表示用ＲＡＭ周辺の回路図、第２図はそのイ
レーズ動作を示すフローチャート１、第３図は本考案の
一実施例に係るイレーズ回路を備えた陰極線管ディスプ
レイ装置の概略ブロック図、第４図はその画面データの
フォーマットを示す図、第５図はそのタイミングチャー
トである。 １１・・・表示用ＲＡＭ１１２・・・ＣＲＴコントロー
ラ、１３・・・ＣＲＴ、１４・・・ＣＰＵ、１５．１７
・・・バスコントローラ、１６・・・イレーズレジスタ
、１８・・・デーコーダ。FIG. 1 is a circuit diagram around a display RAM of a cathode ray tube display device equipped with a conventional erase circuit, FIG. 2 is a flowchart 1 showing the erase operation, and FIG. 3 is an erase circuit according to an embodiment of the present invention. FIG. 4 is a schematic block diagram of a cathode ray tube display device equipped with the same, FIG. 4 is a diagram showing the format of its screen data, and FIG. 5 is its timing chart. 11... Display RAM 112... CRT controller, 13... CRT, 14... CPU, 15.17
...Bus controller, 16.Erase register, 18.Decoder.

Claims (1)

【実用新案登録請求の範囲】 マイクロコンピュータによって制御される陰極線管ディ
スプレイ装置において、 イレーズ指令信号とイレーズデータをＣＰＵに入力する
手段と、前記イレーズ指令信号がｃｐｕに入力したとき
前記イレーズデータが書きこまれるイレーズレジスタと
、前記イレーズ指令信号カ入力したときデータ入力端子
がＣＰＵ側から前記イレーズレジスタ側に切り換わり前
記イレーズレジスタのイレーズデータを所定の時間、画
面表示用メモリに書きこむバスコントローラを設けたこ
とを特徴とする陰極線管ディスプレイ装置。[Claims for Utility Model Registration] In a cathode ray tube display device controlled by a microcomputer, there is provided a means for inputting an erase command signal and erase data to a CPU, and a means for inputting the erase data to the CPU when the erase command signal is input to the CPU. and a bus controller that switches the data input terminal from the CPU side to the erase register side when the erase command signal is input, and writes the erase data of the erase register to the screen display memory for a predetermined period of time. A cathode ray tube display device characterized by:
JP8120283U 1983-05-31 1983-05-31 cathode ray tube display device Pending JPS59186893U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8120283U JPS59186893U (en) 1983-05-31 1983-05-31 cathode ray tube display device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8120283U JPS59186893U (en) 1983-05-31 1983-05-31 cathode ray tube display device

Publications (1)

Publication Number Publication Date
JPS59186893U true JPS59186893U (en) 1984-12-11

Family

ID=30211170

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8120283U Pending JPS59186893U (en) 1983-05-31 1983-05-31 cathode ray tube display device

Country Status (1)

Country Link
JP (1) JPS59186893U (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5468121A (en) * 1977-11-11 1979-06-01 Hitachi Ltd Display unit

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5468121A (en) * 1977-11-11 1979-06-01 Hitachi Ltd Display unit

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