JPS6479794A - Memory address controller - Google Patents
Memory address controllerInfo
- Publication number
- JPS6479794A JPS6479794A JP62236765A JP23676587A JPS6479794A JP S6479794 A JPS6479794 A JP S6479794A JP 62236765 A JP62236765 A JP 62236765A JP 23676587 A JP23676587 A JP 23676587A JP S6479794 A JPS6479794 A JP S6479794A
- Authority
- JP
- Japan
- Prior art keywords
- data
- address
- control
- display mode
- memory
- 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
Links
Landscapes
- Image Input (AREA)
- Image Processing (AREA)
- Digital Computer Display Output (AREA)
- Color Television Systems (AREA)
- Controls And Circuits For Display Device (AREA)
Abstract
PURPOSE: To attain address control by hardware, to speed up address calculation and to reduce the load of a CPU by providing the memory address controller with two address data generation means for successively specifying respective addresses of a picture memory. CONSTITUTION: The controller executes the address control of a normal display mode, a PIP display mode, an enlarged display mode, and a multi-picture display mode based upon data set up in latch circuits 18, 20, 26, 28 and control data CD1 to CD4 outputted from a control circuit 29. The controller for executing the address control is provided with counters 12, 14 for generating the horizontal address data of the picture memory 11, counters 13, 15 for generating the vertical address data of the memory 11, data subtracting circuits 17, 19, count value selecting circuits 21, 22, shift circuits 23, 24 for changing the inclinations of selected outputs, and data adders 25, 27 and respective control functions can be driven only by setting up data from a CPU 16.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62236765A JP2609629B2 (en) | 1987-09-21 | 1987-09-21 | Memory address controller |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62236765A JP2609629B2 (en) | 1987-09-21 | 1987-09-21 | Memory address controller |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6479794A true JPS6479794A (en) | 1989-03-24 |
JP2609629B2 JP2609629B2 (en) | 1997-05-14 |
Family
ID=17005460
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62236765A Expired - Lifetime JP2609629B2 (en) | 1987-09-21 | 1987-09-21 | Memory address controller |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2609629B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013225909A (en) * | 2013-06-21 | 2013-10-31 | Mega Chips Corp | Image processing system |
-
1987
- 1987-09-21 JP JP62236765A patent/JP2609629B2/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013225909A (en) * | 2013-06-21 | 2013-10-31 | Mega Chips Corp | Image processing system |
Also Published As
Publication number | Publication date |
---|---|
JP2609629B2 (en) | 1997-05-14 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS6479794A (en) | Memory address controller | |
JPS52134330A (en) | Picture display unit | |
JPS5439524A (en) | Display unit with next screen display function | |
JPS6472197A (en) | Lookup table | |
JPS5425630A (en) | Crt diaplay system | |
JPS54128225A (en) | Crt multiple screen display system | |
KR910006338Y1 (en) | Extended character display circuits by character generator | |
JPS53105191A (en) | Electrode construction of liquid crystal display panel | |
JPS6465672A (en) | Display device for three-dimensional scene | |
JPS6479793A (en) | Memory address controller | |
JPS5513412A (en) | Display unit | |
JPS54155728A (en) | Display method | |
JPS5461845A (en) | Refresh control system | |
JPS5487126A (en) | Character display unit enabling picture display | |
KR910003677Y1 (en) | Blanking signal processing circuit for crt | |
JPS6478377A (en) | Picture forming device | |
JPS52106635A (en) | Display unit of program progression state | |
JPS567129A (en) | Device selection circuit | |
JPS6465592A (en) | Density image display device | |
JPS5298428A (en) | Displaying and display unit | |
JPS6486950A (en) | Image display apparatus | |
JPS53148298A (en) | Diode display device | |
KR850005109A (en) | Apparatus for changing the scanning line per row of a specific row in a cathode ray tube terminal | |
JPS5275232A (en) | Letter display unit | |
JPH023510B2 (en) |