MAGNAVOX
VGA VIDEO ADAPTER
|
Category |
Video |
|
Video Types Supported |
VGA |
|
Video Processor |
82C451 |
|
Highest Resolution Supported |
640 x 480 |
|
Data Bus Type |
16-bit ISA |
|
Memory Type |
VRAM |
|
Maximum Onboard Memory |
Unidentified |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
15-pin analog video port |
CN1 |
VGA Feature Connector |
CN3 |
|
9-pin digital video port |
CN2 | ||
|
SINGLE VGA CARD CONFIGURATION | ||||
|
Setting |
SW1/1 |
SW1/2 |
SW1/3 |
SW1/4 |
|
MD |
Off |
Off |
On |
Off |
|
ED 350 Lines |
Off |
On |
On |
Off |
|
ED 200 Lines |
On |
On |
On |
Off |
|
CD 80x25 |
Off |
Off |
Off |
On |
|
CD 40x25 |
On |
Off |
Off |
On |
|
Note: MD = Monochrome Display, ED = Enhanced Color Display, CD = Color Display. | ||||
|
DUAL VIDEO CARD COFIGURATION | |||||
|
Primary Adapter |
Secondary Adapter |
SW1/1 |
SW1/2 |
SW1/3 |
SW1/4 |
|
EGA with MD |
CGA 80X25 or none |
Off |
Off |
On |
Off |
|
EGA with MD |
CGA 40 X 25 |
On |
Off |
On |
Off |
|
EGA with ED 350 Lines |
MDA or none |
Off |
On |
On |
Off |
|
EGA with ED 200 Lines |
MDA or none |
On |
On |
On |
Off |
|
EGA with CD 80x25 |
MDA or none |
Off |
Off |
Off |
On |
|
EGA with CD 40X25 |
MDA or none |
On |
Off |
Off |
On |
|
CGA 80X25 |
EGA with MD |
Off |
On |
Off |
On |
|
CGA 40X25 |
EGA with MD |
On |
On |
Off |
On |
|
MDA |
EGA with ED 350 Lines |
Off |
Off |
On |
On |
|
MDA |
EGA with ED 200 Lines |
On |
Off |
On |
On |
|
MDA |
EGA CD 80X25 |
Off |
On |
On |
On |
|
MDA |
EGA CD 40X25 |
On |
On |
On |
On |
|
MONITOR TYPE | |
|
Setting |
SW1/5 |
|
Analog Monitor |
On |
|
Digital Monitor |
Off |
|
FACTORY CONFIGURED SETTING | |
|
Setting |
SW1/6 |
|
Reserved for new version of software. |
N/A |
|
BIOS JUMPERS | ||
|
Setting |
W2 |
W3 |
|
16 bit BIOS for AT system or 8 bit BIOS for XT system |
Closed |
Closed |
|
8 bit BIOS for AT system |
Open |
Open |
|
VERTICAL INTERRUPT SETTING | ||
|
Setting |
W1 | |
|
Disables interrupts for each vertical sync pulse |
Open | |
|
Enables interrupts for each vertical sync pulse |
Closed | |