Page 1
ATI TECHNOLOGIES, INC.
P 6
P1
D
R
A
M
VID EO
CIRCUITRY
P6-P9
BIOS
SW1
J3
E G A W O N D E R 8 0 0
Card Type
Video Chip Set
Highest Resolution Supported
Maximum Video Memory
Data Bus
Video Types Supported
Video card
ATi + C&T
800 x 600
256KB
8-bit ISA
Monochrome, CGA, EGA
CONNECTIONS
LabelFunctionLabelFunction
P1Light pen
J39-pin digital video port
USER CONFIGURABLE SETTINGS
PositionLabelFunction
OnSW1/8Enhanced features, enable
OffSW1/8Enhanced features, disabled
Pins 2 & 3 closedP6í Port address 3xx
Pins 1 & 2 closedP6Port address 2xx
Pins 1 & 2 closedP7í Video Clock- on board oscillator
Pins 2 & 3 closedP7Feature Connector ‘EXTOSC’ signal
Pins 1 & 2 closedP8í Sync selection- horizontal
Pins 2 & 3 closedP8Sync selection- composite
Pins 2 & 3 closedP9í J1 connected to composite sync
Pins 1 & 2 closedP9J1 connected with J4 pin4
DISPLAY CONFIGURATION
SW1/4SW1/3SW1/2SW1/1Type
OffOnOffOffMDA
OnOffOffOnCGA (40x25)
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OnOffOffOffCGA (80x25)
OffOnOnOní EGA (normal)
OffOnOnOffEGA (enhanced)
Page 2
ATI TECHNOLOGIES, INC.
E G A W O N D E R 8 0 0
MONITOR SELECTION
DISPLAY MODE SELECTION (EGA WONDER PRIMARY)
DISPLAY MODE SELECTION (EGA WONDER SECONDARY)
MISCELLANEOUS TECHNICAL NOTES
Note: DRAM bank identified for location only. Chip size is unidentified.
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SW1/7SW1/6SW1/5Type
OnOffOnMultisync
OffOffOnEnhanced graphics
OffOnOnRGB Color
OffOnOffMonochrome
OnOffOff25KHz (color 1)
OffOnOnComposite
OffOffOffNot used
SW1/4SW1/3SW1/2SW1/1MonitorSecondaryPrimary
OffOnOffOffMDCGA, 80x25MDA
OffOnOnOffECDMDAEGA, 80x25
OffOnOnOnCDMDACGA, 80x25
OnOffOffOffCDMDACGA, 80x25
OnOffOffOnCDMDACGA, 40x25
SW1/4SW1/3SW1/2SW1/1MonitorSecondaryPrimary
OnOffOnOffMDMDACGA, 80x25
OnOffOnOnMDMDACGA, 40x25
OnOnOffOffECDEGA, 80x25MDA
OnOnOffOnCDCGA, 80x25MDA
OnOnOnOffCDCGA, 80x25MDA
OnOnOnOnCDCGA, 40x25MDA
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