Service manual

8224 N/B Maintenance
8224 N/B Maintenance
89
5.1 Intel 945G/945P North Bridge (6)
Intel® Serial DVO (SDVO) Interface (Intel® 82945G GMCH Only)
Signal Name Type Description
SDVOB_CLK- O
PCIE
Serial Digital Video Channel B Clock Complement:
This signal is multiplexed with EXP_TXN12.
SDVOB_CLK+ O
PCIE
Serial Digital Video Channel B Clock Clock:
This signal is multiplexed with EXP_TXP12.
SDVOB_RED- O
PCIE
Serial Digital Video Channel C Red Complement:
This signal is multiplexed with EXP_TXN15.
SDVOB_RED+ O
PCIE
Serial Digital Video Channel C Red:
This signal is multiplexed with EXP_TXP15.
SDVOB_GREEN
-
O
PCIE
Serial Digital Video Channel B Green Complement:
This signal is multiplexed with EXP_TXN14.
SDVOB_GREEN
+
O
PCIE
Serial Digital Video Channel B Green:
This signal is multiplexed with EXP_TXP14.
SDVOB_BLUE- O
PCIE
Serial Digital Video Channel B Blue Complement:
This signal is multiplexed with EXP_TXN13.
SDVOB_BLUE+ O
PCIE
Serial Digital Video Channel B Blue:
This signal is multiplexed with EXP_TXP13.
SDVOC_RED-/
SDVOB_ALPHA
-
O
PCIE
Serial Digital Video Channel C Red Complement Channel B
Alpha Complement:
This signal is multiplexed with EXP_TXN11.
SDVOC_RED+/
SDVOB_ALPHA
+
O
PCIE
Serial Digital Video Channel C Red Complement Channel B
Alpha:
This signal is multiplexed with EXP_TXP11.
SDVOC_GREEN
-
O
PCIE
Serial Digital Video Channel C Green Complement:
This signal is multiplexed with EXP_TXN10.
SDVOC_GREEN
+
O
PCIE
Serial Digital Video Channel C Green:
This signal is multiplexed with EXP_TXP10.
SDVOC_BLUE- O
PCIE
Serial Digital Video Channel C Blue Complement:
This signal is multiplexed with EXP_TXN9.
SDVOC_BLUE+ O
PCIE
Serial Digital Video Channel C Blue:
This signal is multiplexed with EXP_TXP9.
SDVOC_CLK- O
PCIE
Serial Digital Video Channel C Clock Complement:
This signal is multiplexed with EXP_TXN8.
SDVOC_CLK+ O
PCIE
Serial Digital Video Channel C Clock:
This signal is multiplexed with EXP_TXP8.
SDVO_TVCLKI
N-
I
PCIE
Serial Digital Video TV-OUT Synchronization Clock
Complement:
This signal is multiplexed with EXP_RXN15.
SDVO_TVCLKI
N+
I
PCIE
Serial Digital Video TV-OUT Synchronization Clock:
This signal is multiplexed with EXP_RXP15.
SDVOB_INT- I
PCIE
Serial Digital Video Input Interrupt Complement:
This signal is multiplexed with EXP_RXN14.
Power and Ground
Name Voltage Description
VCC 1.5V Core Power
VTT 1.2V Processor System Bus Power
VCC_EXP 1.5V PCI Express* and DMI Power
VCCSM 1.8V System Memory Power
VCC2 2.5V 2.5V COMS Power
VCCA_EXPPL
L
1.5V PCI Express PLL Analog Power
VCCA_DPLLA
(GMCH
ONLY)
1.5V Display PLL A Analog Power
VCCA_DPLLB
(GMCH
ONLY)
1.5V Display PLL B Analog Power
VCCA_HPLL 1.5V Host PLL Analog Power
VCCA_SMPLL 1.5V System Memory PLL Analog Power
VCCA_DAC 2.5V Display DAC Analog Power
VSS 0V Ground
VSSA_DAC 0V Ground
Intel® Serial DVO (SDVO) Interface (Intel® 82945G GMCH Only)
(Continued)
Signal Name Voltage Description
SDVOB_INT+ I
PCIE
Serial Digital Video Input Interrupt:
This signal is multiplexed with EXP_RXP14.
SDVOC_INT- I
PCIE
Serial Digital Video Input Interrupt Complement:
This signal is multiplexed with EXP_RXN10.
SDVOC_INT+ I
PCIE
Serial Digital Video Input Interrupt:
This signal is multiplexed with EXP_RXP10.
SDVO_STALL- I
PCIE
Serial Digital Video Filed Stall Complement:
This signal is multiplexed with EXP_RXN13.
SDVO_STALL+ I
PCIE
Serial Digital Video Filed Stall:
This signal is multiplexed with EXP_RXP13.
SDVO_CTRLCL
K
I/O
COD
Serial Digital Video Device Control Clock.
SDVO_CTRLDA
TA
I/O
COD
Serial Digital Video Device Control Data.
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