Service manual

98
8575
8575
A N/B Maintenance
A N/B Maintenance
VGA Interface
Name Pin Attr Signal Description
VOSCI
I
3.3V - M
14.318 Reference Clock Input
HSYNC
O
3.3V - M
Horizontal Sync
VSYNC
O
3.3V - M
Vertical Sync
INTA#
O
3.3V - M
Internal VGA Interrupt Pin
VGPIO[1:0]
I/O
3.3V - M
Internal VGA GPIO pins
VCOMP
AI
Analog - M
Compensation Pin
VRSET
AI
Analog - M
Reference Resistor
VVBWN
AI
Analog - M
Voltage Reference
ROUT
AO
Analog - M
Red Signal Output
GOUT
AO
Analog - M
Green Signal Output
BOUT
AO
Analog - M
Blue Signal Output
Power and Ground Signals
Name Tolerance Power Plane Type Attribute
A1XAVDD
3.3V MAIN Analog
A1XAVSS
0V GROUND Analog
A4XAVDD
3.3V MAIN Analog
A4XAVSS
0V GROUND Analog
AGPVSSREF
0V GROUND Analog
AUX1.8
1.8V AUX Digital
AUX3.3
3.3V AUX Digital
C1XAVDD
3.3V MAIN Analog
C1XAVSS
0V GROUND Analog
Name Tolerance Power Plane Type Attribute
C4XAVDD
3.3V MAIN Analog
C4XAVSS
0V GROUND Analog
DACAVDD1
1.8V MAIN Analog
DACAVDD2
1.8V MAIN Analog
DACAVSS1
0V GROUND Analog
DACAVSS2
0V GROUND Digital
DCLKAVDD
3.3V MAIN Digital
DCLKAVSS
0V GROUND Analog
DDRAVDD
3.3V MAIN Analog
DDRAVSS
0V GROUND Analog
ECLKAVDD
3.3 MAIN Analog
ECLKAVSS
0V GROUND Analog
IVDD
1.8V MAIN Digital
OVDD
3.3V MAIN Digital
PVDD
3.3V MAIN Digital
PVDDM
3.3V AUX Digital
PVDDP
1.8V MAIN Digital
PVDDZ
1.8V MAIN Digital
SDAVDD
3.3V MAIN Analog
SDAVSS
0V GROUND Analog
VDDM
2.5/3.3V MAIN(AUX) Digital
VDDQ
1.5/1.8/3.3V MAIN Digitalv
VDDZ
1.8V MAIN Digital
VDDMCMP
1.8V MAIN Analog
VTT
1.2~1.85V MAIN Digital
Z1XAVDD
3.3V MAIN Analog
Z1XAVSS
0V GROUND Analog
Z4XAVDD
3.3V MAIN Analog
Z4XAVSS
0V GROUND Analog
5.2 SiS650 IGUI Host/Memory Controller