BOCA RESEARCH, INC.

DUAL GRAPHICS ADAPTER (DGA002)

Card Type

Parallel/Video card

Video Chip Set

Unidentified

Highest Resolution Supported

720 x 348

Maximum Video Memory

None

Data Bus

8-bit ISA

Video Types Supported

Monochrome, CGA

CONNECTIONS

Function

Label

Function

Label

15-pin video analog port

CN1

25-pin parallel port

CN2

VIDEO CONFIGURATION

Type

J3/A

»

Monochrome

Pins 1 & 3, 2 & 4 closed

 

Monochrome CGA display

Pins 3 & 5, 2 & 4 closed

 

CGA

Pins 3 & 5, 4 & 6 closed

 

Disabled

Pins 1 & 3, 4 & 6 closed

PARALLEL PORT ADDRESS SELECTION

Setting

J3/B

»

LPT1 (378h)

Pins 1 & 3, 2 & 4 closed

 

LPT2 (278h)

Pins 1 & 3, 4 & 6 closed

 

LPT3 (3BCh)

Pins 3 & 5, 2 & 4 closed

 

Disabled

Pins 3 & 5, 4 & 6 closed