BOCA RESEARCH, INC.

DUAL GRAPHICS ADAPTER

Card Type

Video card

Video Chip Set

Unidentified

Highest Resolution Supported

720 x 348

Maximum Video Memory

Unidentified

Data Bus

8-bit ISA/16-bit ISA

Video Types Supported

MDA, CGA

CONNECTIONS

Function

Label

Function

Label

Parallel port

CN1

Video port

CN2

DISPLAY CONFIGURATION

Display

Printer

J1

ยป

Auto switching dual graphics configuration

3BCh

Pins 2 & 3, 5 & 6 closed

 

Monochrome configuration

3BCh

Pins 1 & 2, 5 & 6 closed

 

Fixed color graphics configuration

378h

Pins 2 & 3, 4 & 5 closed

 

Fixed color graphics configuration

Disabled

Pins 1 & 2, 4 & 5 closed

MISCELLANEOUS TECHNICAL NOTES

Note: The purpose of JP1 is unidentified.