Signal Description
2.4
DDR2 DRAM Reference and Compensation
Signal Name
Type
Description
SRCOMP[3:0]
I
A
I
System Memory RCOMP
SVREF
SDRAM Reference Voltage: Reference voltage input for DQ,
DQS, and DQS# input signals.
A
I
SMRCOMPVOL
SMRCOMPVOH
System Memory RCOMP reference
System Memory RCOMP reference
A
I
A
2.5
PCI Express* Interface Signals
Signal Name
Type
Description
EXP_RXN[15:0]
EXP_RXP[15:0]
I
PCI Express Receive Differential Pair (RX)
PCI
EXPRESS
EXP_TXN[15:0]
EXP_TXP[15:0]
O
PCI Express Graphics Transmit Differential Pair (TX)
PCI
EXPRESS
EXP_COMPO
EXP_COMPI
I
A
I
PCI Express Graphics Output Current Compensation
PCI Express Graphics Input Current Compensation
A
2.6
Analog Display Signals
Signal Name
Type
Description
RED
O
A
RED Analog Video Output: This signal is a CRT Analog video
output from the internal color palette DAC. The DAC is designed
for a 37.5 ohm routing impedance, but the terminating resistor
to ground will be 75 ohms (e.g., 75 ohm resistor on the board,
in parallel with a 75 ohm CRT load).
RED#
O
A
RED# Analog Output: This signal is an analog video output
from the internal color palette DAC. It should be shorted to the
ground plane.
36
Datasheet
INTEL [ INTEL ]
