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