EXPERT COMPUTER INTERNATIONAL, INC

TOP SEGA 800

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

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