Signal Description
74
Datasheet
6.4
PCI Express Graphics Interface Signals
PRDY#
PRDY#
: A processor output used by debug
tools to determine processor debug
readiness.
O
Asynchronous GTL
PREQ#
PREQ#:
Used by debug tools to request
debug operation of the processor.
I
Asynchronous GTL
RSVD
RSVD_TP
RSVD_NCTF
RESERVED.
All signals that are RSVD and
RSVD_NCTF must be left unconnected on the
board. However, Intel recommends that all
RSVD_TP signals have via test points.
No Connect
Test Point
Non-Critical to
Function
Table 6-26.PCI Express Graphics Interface Signals
Signal Name
Description
Direction/Buffer
Type
PEG_RX[15:0]
PEG_RX#[15:0]
PCI Express Graphics Receive
Differential Pair
I
PCI Express
PEG_TX[15:0]
PEG_TX#[15:0]
PCI Express Graphics Transmit
Differential Pair
O
PCI Express
PEG_ICOMPI
PCI Express Graphics Input Current
Compensation
I
A
PEG_ICOMPO
PCI Express Graphics Output Current
Compensation
I
A
PEG_RCOMPO
PCI Express Graphics Resistance
Compensation
I
A
PEG_RBIAS
PCI Express Resistor Bias Control
I
A
Table 6-25.Reset and Miscellaneous Signals (Sheet 2 of 2)
Signal Name
Description
Direction/Buffer
Type