JPS63103151U - - Google Patents

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Publication number
JPS63103151U
JPS63103151U JP20397886U JP20397886U JPS63103151U JP S63103151 U JPS63103151 U JP S63103151U JP 20397886 U JP20397886 U JP 20397886U JP 20397886 U JP20397886 U JP 20397886U JP S63103151 U JPS63103151 U JP S63103151U
Authority
JP
Japan
Prior art keywords
input
flop
flip
output
signal
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
JP20397886U
Other languages
Japanese (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 JP20397886U priority Critical patent/JPS63103151U/ja
Publication of JPS63103151U publication Critical patent/JPS63103151U/ja
Pending legal-status Critical Current

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  • Image Input (AREA)

Description

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

第1図は本考案の一実施例を示す回路図、第2
図は、第1図に示すメモリ制御回路のタイミング
チヤートである。 1,2……フリツプフロツプ、3……マルチプ
レクサ、4……メモリ、5……アドレス発生回路
、a……クロツク信号、b……データ終了信号、
c……書き込み/読みだし選択信号、d……アウ
トプツトイネーブル信号、e……第一フリツプフ
ロツプ第一出力、f……第一フリツプフロツプ第
二出力、g……第二フリツプフロツプ第一出力、
h……メモリ制御信号、i……メモリ制御信号、
j……アドレス選択信号。
Figure 1 is a circuit diagram showing one embodiment of the present invention;
The figure is a timing chart of the memory control circuit shown in FIG. 1, 2...Flip-flop, 3...Multiplexer, 4...Memory, 5...Address generation circuit, a...Clock signal, b...Data end signal,
c...Write/read selection signal, d...Output enable signal, e...First output of the first flip-flop, f...Second output of the first flip-flop, g...First output of the second flip-flop,
h...Memory control signal, i...Memory control signal,
j...Address selection signal.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] データ終了信号が第一フリツプフロツプのクロ
ツク端子に入力される度に、第一出力と第二出力
のレベルが反転する第一のフリツプフロツプと、
前記第一のフリツプフロツプからの第二出力が入
力され、書き込み読みだし制御信号がクロツク端
子に入力されるとその時の入力レベルと同じレベ
ルの信号を第一出力に出力する第二のフリツプフ
ロツプと、前記第一のフリツプフロツプの第一出
力からの入力と第二のフリツプフロツプの第一出
力からの入力を前記書込み読みだし制御信号によ
つて切り替えるマルチプレクサとマルチプレクサ
からの出力がアドレスの最上位ビツトに入力され
る一つのメモリを含む事を特徴とする画像用メモ
リ制御回路。
a first flip-flop in which the levels of the first and second outputs are inverted each time a data end signal is input to the clock terminal of the first flip-flop;
a second flip-flop to which a second output from the first flip-flop is input, and outputs a signal at the same level as the input level at that time to the first output when a write/read control signal is input to the clock terminal; A multiplexer switches the input from the first output of the first flip-flop and the input from the first output of the second flip-flop by the write/read control signal, and the output from the multiplexer is input to the most significant bit of the address. An image memory control circuit characterized by including one memory.
JP20397886U 1986-12-24 1986-12-24 Pending JPS63103151U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP20397886U JPS63103151U (en) 1986-12-24 1986-12-24

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP20397886U JPS63103151U (en) 1986-12-24 1986-12-24

Publications (1)

Publication Number Publication Date
JPS63103151U true JPS63103151U (en) 1988-07-04

Family

ID=31169813

Family Applications (1)

Application Number Title Priority Date Filing Date
JP20397886U Pending JPS63103151U (en) 1986-12-24 1986-12-24

Country Status (1)

Country Link
JP (1) JPS63103151U (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5819949A (en) * 1981-07-28 1983-02-05 Fujitsu Ltd Data write and read system

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5819949A (en) * 1981-07-28 1983-02-05 Fujitsu Ltd Data write and read system

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