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Intel
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IXP43X Product Line of Network Processors—Hardware Design Guidelines
Intel
®
IXP43X Product Line of Network Processors
HDG April 2007
48 Document Number: 316844; Revision: 001US
3.11.3 PCI Option Interface
The IXP43X network processors can be used in a design as a host or as an option
device. This section describes how the IXP43X network processors can be connected as
an option device to obtain proper functionality. There are slight differences in the
hardware interface when designing for option mode. All routing and board
recommendations described in this document apply, however the design must use the
device pin connections listed in Table 18.
Figure 13. PCI Interface
Intel® IXP43X
Product Line of
Network Processors
Transparent P CI
Bridge
cPCI J2
Compact PCI Bus
PCI Bus
cPCI J1
PCI Slots
PCI Interface
B4110-003
Table 18. PCI Host/Option Interface Pin Description (Sheet 1 of 3)
Name
Type
Field
Device-Pin Connection
Option
Type
Field
Description
PCI_AD[31:0] I/O
All address/data signals must be
connected between the two devices.
I/O PCI Address/Data bus
PCI_CBE_N[3:0] I/O
Connect signals to same pins between
the two devices.
I/O PCI Command/Byte Enables
PCI_PAR I/O
Connect signal to same pin between
the two devices.
I/O PCI Parity
PCI_FRAME_N I/O
Connect signal to same pin between
the two devices.
Connect a 10-KΩ pull-up resistor.
I/O PCI Cycle Frame
PCI_TRDY_N I/O
Connect signal to same pin between
the two devices.
Connect a 10-KΩ pull-up resistor.
I/O PCI Target Ready