AT&T PC 6300 - Display Enhancement Board (Optional)

SYSTEM OVERVIEW
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DISPLAY ENHANCEMENT BOARD
(OPTIONAL)
The optional Display Enhancement Board provides additional
operating modes when used with the Display Controller Board.
The main features provided by the Display Enhancement Board
are:
1. Three additional 640 x 400 pixel bit planes—higher resolution
with 16 colors.
2. Two new graphic modes that support up to 16,536
colors/patterns:
• 640 X 400 pixels color graphics—16 colors on screen (16 shades
of green on monochrome display)
• 640 X 200 pixels color graphics—16 colors on screen (16 shades
of green on monochrome display).
3. Software-controlled color look-up table:
• Maps bit planes to 16-color palettes—allowing color cycling
• .Supports 4 blink rates in hardware
• Supports dithering in hardware
• Supports pattern and texture fills for adding dimension to
mechanical drawings.
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