JPS63103151U - - Google Patents
Info
- 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
Links
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Image Input (AREA)
Description
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)
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.
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5819949A (en) * | 1981-07-28 | 1983-02-05 | Fujitsu Ltd | Data write and read system |
-
1986
- 1986-12-24 JP JP20397886U patent/JPS63103151U/ja active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5819949A (en) * | 1981-07-28 | 1983-02-05 | Fujitsu Ltd | Data write and read system |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS63103151U (en) | ||
JPS62175499U (en) | ||
JPS62135257U (en) | ||
JPH03111013U (en) | ||
JPS59161185U (en) | Digital image display circuit | |
JPH0166697U (en) | ||
JPH0358737U (en) | ||
JPH0210633U (en) | ||
JPS62164693U (en) | ||
JPS62120500U (en) | ||
JPS60164244U (en) | analog input device | |
JPS6356451U (en) | ||
JPH02123799U (en) | ||
JPS6271747U (en) | ||
JPH0394698U (en) | ||
JPH0191959U (en) | ||
JPH03124248U (en) | ||
JPH02123640U (en) | ||
JPS62101195U (en) | ||
JPS6251598U (en) | ||
JPH022751U (en) | ||
JPS62187500U (en) | ||
JPS61167100U (en) | ||
JPS6335146U (en) | ||
JPS61163400U (en) |