Intel 855GME Design Manual page 284

®
Intel 855GME Chipset and Intel
Schematic Checklist Summary
Table 132. PCI-X Interface Checklist
Checklist Items
PXPCIXCAP
PXREQ64#
PXREQ[0:1]#
PXREQ[2]# /
GPIO[0]
PXREQ[3]# /
GPIO[1]
PXGNT[0:1]#
PXGNT[2]# /
GPIO[16]
PXGNT[3]# /
GPIO[17]
PXDEVSEL#
PXFRAME#
PXIRDY#
PXPAR
PXPAR64
PXPERR#
PXSERR#
PXSTOP#
PXTRDY#
RASERR#
PXC/BE#[4:7]
PXC/BE#[0:3]
PXPCLKI
284
®
6300ESB ICH Embedded Platform Design Guide
Recommendations
4.7 K Ω pull-up resistor to VCC3.3
For three slot configurations
8.2 K Ω pull-up resistor to VCC3.3
For all other configurations
8.2 K Ω pull-up resistor to VCC3.3
8.2 K Ω pull-up resistors to VCC3.3
No extra pull-ups needed
8.2 K Ω pull-up resistor to VCC3.3
8.2 K Ω pull-up resistor to VCC3.3
8.2 K Ω pull-up resistor to VCC3.3
No extra pull-ups needed
8.2 K Ω pull-up resistor to VCC3.3
8.2 K Ω pull-up resistor to VCC3.3
8.2 K Ω pull-up resistor to VCC3.3
8.2 K Ω pull-up resistor to VCC3.3
8.2 K Ω pull-up resistor to VCC3.3
8.2 K Ω pull-up resistor to VCC3.3
8.2 K Ω pull-up resistors to VCC3.3
No extra pull-ups needed
No extra pull-ups needed
Ensure this is connected to
PXPCLK04 through a 33 Ω resistor
Interface not used
When the signal is
read as a logic high
there is no effect.
(Does not support
PCI-X 133 MHz).
May leave as no connect
See PCI-X
Specification 1.0a for
more
recommendations on
PXPCIXCAP
connections
8.2 K Ω pull-up resistor to
VCC3.3
8.2 K Ω pull-up resistors to
VCC3.3
These signals are
May leave as no connect actively driven by the
6300ESB
8.2 K Ω pull-up resistor to
VCC3.3
8.2 K Ω pull-up resistor to
VCC3.3
8.2 K Ω pull-up resistor to
VCC3.3
May leave as no connect
May leave as no connect
8.2 K Ω pull-up resistor to
VCC3.3
8.2 K Ω pull-up resistor to
See PCI-X
VCC3.3 specification rev 1.0a
8.2 K Ω pull-up resistor to
VCC3.3
8.2 K Ω pull-up resistor to
VCC3.3
May leave as no connect
May leave as no connect
May leave as no connect
No extra pull-ups needed
Ensure this is connected
Feedback clock.
to PXPCLK04 through a
33 Ω resistor
Reason/Impact