TOP SEGA 800 video card Settings and Configuration

Card Type	Video card
Video Chip Set	Unidentified
Maximum Video Memory	256KB
Video Types Supported	Monochrome, EGA, CGA
Highest Resolution Supported	800 x 600
Data Bus	8-bit ISA

CONNECTIONS
Function	Label	Function	Label
Feature connector	J1	Audio in	J4
Light pen connector	J2	9-pin digital video port	J5
Audio in	J3

USER CONFIGURABLE SETTINGS
Function	Label	Position
Color or Monochrome display mode	JMP3	Pins 2 & 3 closed
Enhanced color display mode	JMP3	Pins 1 & 2 closed

MONITER CONFIGURATION SELECTION
SW1/1	SW1/2	SW1/3	SW1/4	Enhanced	Monochrome	Color/Graphics
On	Off	Off	On	Color 40 x 25	Secondary	Disabled
Off	Off	Off	On	Color 80 x 25	Secondary	Disabled
On	On	On	Off	Enhanced	Secondary	Disabled
Off	On	On	Off	Enhanced hi res	Secondary	Disabled
On	Off	On	Off	Monochrome	Disabled	Secondary 40 x 25
Off	Off	On	Off	Monochrome	Disabled	Secondary 80 x 25
On	On	On	On	Color 40 x 25	Primary	Disabled
Off	On	On	On	Color 80 x 25	Primary	Disabled
On	Off	On	On	Enhanced	Primary	Disabled
Off	Off	On	On	Enhanced hi res	Primary	Disabled
On	On	Off	On	Monochrome	Disabled	Primary 40 x 25
Off	On	Off	On	Monochrome	Disabled	Primary 80 x 25

GRAPHICS COMPATIBILITY SELECTION
Configuration	SW1/5	SW1/6
Standard or advanced EGA	On	On
Downward CGA	Off	On
Downward MDA, Hercules	Off	Off

BIOS SELECTION
Setting	JMP1
27128 Eprom	Pins 1 & 2, 4 & 5 closed
27256 Eprom	Pins 2 & 3, 5 & 6 closed

BASE I/O ADDRESS SELECTION
Setting	JMP2
3xxh	Pins 2 & 3 closed
2xxh	Pins 1 & 2 closed