81
Prestigio Cavaliere 141
Technical Service Manual
5. Pin Descriptions of Major Components
Power and Gr ound Signals Continue
Name
Toler ance
Power Plane
Type Attr ibute
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
VGA Inter face
Name
Pin Attr
Signal Descr iption
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
SiS M u T IO L In ter fa ce
Sign a l Na m e
P in Attr
Sign a l Descr ip tion
ZCLK I
3.3V-M
SiS MuTIOL Connect
ZUREQ/ZQREQ I/O
1.8-M
SiS MuTIOL Connect Control pins
ZSTB[1:0] I/O
1.8-M
SiS MuTIOL Connect Strobe
ZSTB[1:0]# I/O
1.8-M
Strobe Compliment
ZAD[15:0] I/O
1.8-M
I/O
1.8V - M
ZVREF I
M
SiS MuTIOL Connect Reference Voltage
ZCMP_N I
M
N-MOS Compensation Input
ZCMP_N I
M
P-MOS Compensation Input
AGPCLK I
3.3V – M
AGP Clock
AFRAME# I/O
1.5V/3.3V - M
AGP Frame#
AIRDY# I/O
1.5V/3.3V - M
AGP Initiator Ready
ATRDY# I/O
1.5V/3.3V - M
AGP Target Ready
ASTOP# I/O
1.5V/3.3V - M
AGP Stop#
ADEVSEL# I/O
1.5V/3.3V - M
AGP Device Select
ASERR# I/O
1.5V/3.3V - M
AGP System Error
AREQ# I/O
1.5V/3.3V - M
AGP Bus Request
AGNT# I/O
1.5V/3.3V - M
AGP Bus Grant
AAD[31:0] I/O
1.5V/3.3V - M
AGP Address/Data Bus
AC/BE[3:0 I/O
1.5V/3.3V - M
AGP Command/Byte Enable
APAR I/O
1.5V/3.3V - M
AGP Parity
ST[2:0] O
1.5V/3.3V - M
AGP Status Bus
5.2 SiS650 (IGUI Host Memory Controller )
