Data What to define | Related registers | Data to set |
Pattern name
Table | Character pattern head
Head address | Pattern name control register
(180030H to 180038H) | Pattern name data size
Character number auxiliary mode
Pattern name auxiliary data |
| Plane size register (18003AH) | Plane size for displaying in cell format | |
Normal scroll screen map register
data (180040H ~ 18004EH) | Pattern name table placed on each plane
Start address of table |
Rotary scroll screen map register
(180050H ~ 18006EH) | Pattern name table to be placed on each plane
Start address of table |
Map offset register (18003CH,
18003EH) | 3-bit
map offset value to be added to the upper part of the map register |
Character
Pattern | Cell dot data | Character control register
(180028H, 18002AH) | Character color number and character size |
Bitmap
Pattern | Bitmap pattern
Data | Character control register
(180028H, 18002AH) | Character color depth (bitmap color depth),
bitmap size, bitmap enable
table |
Map offset register (18003CH,
18003EH) | Bitmap pattern boundary address
Address |
Line Scroll
Table | | Horizontal and vertical screen
Screen scroll value, Horizontal
Directional increment | Line scroll table address address
Distor (1800A0H to 1800A6H) | Line scroll table start address
Address |
Line & vertical cell scroll control
Rule register (18009AH) | Scroll function control data |
Vertical cell scrolling
Rule table | Vertical screen scrolling
Value | Vertical cell scrolling table address register
Dister (18009CH , 18009EH) | First address of vertical cell scroll table
S |
Line & vertical cell scroll control
Rule register (18009AH) | Scroll function control data |
Rotation parameter
Table | Register of rotation parameter, coefficient table | | RAM control register (18000EH) | VRAM usage for rotating scroll screen
Target |
Rotation parameter table address register
Star (1800BCH, 1800BEH) | Start address of parameter table |
Rotation parameter mode register
(1800B0H) | Specify rotation parameter mode |
| Coefficient table | Coefficient table data
(Scale factor kx, ky,
Start point coordinates after rotation conversion
Xp) | RAM control register (18000EH) | VRAM usage on rotating scroll screen
Target |
Coefficient table control register
(1800B4H) | Coefficient data mode, coefficient data data
size, coefficient table enable |
Coefficient table address offset register
Star (1800B6H) | Coefficient table start address offset
Value |
Line Color
Screen Table | Color RAM Address | Line Color Screen Table Address Address
Distor (1800A8H, 1800AAH) | Line Color screen color mode, start address of line color screen table |
Back screen
Table | RGB color data | Back screen table address register
(1800ACH, 1800AEH) | Back screen color Mode, back screen
Top address of table |
Line window
Wtable | Horizontal start point coordinate, Horizontal
Direction end point coordinate | Line window table address register
Distor (1800D8H to 1800DEH) | Line window enable, Line
Window table start address |