EWIXP425BCT Intel, EWIXP425BCT Datasheet - Page 84

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EWIXP425BCT

Manufacturer Part Number
EWIXP425BCT
Description
Manufacturer
Intel
Datasheet

Specifications of EWIXP425BCT

Core Operating Frequency
400MHz
Package Type
BGA
Pin Count
492
Mounting
Surface Mount
Lead Free Status / Rohs Status
Compliant
Table 25.
A.5
Table 26.
Intel
Hardware Design Guidelines
84
®
IXP42X Product Line of Network Processors and IXC1100 Control Plane Processor
High-Speed, Serial Interface 1 (Sheet 2 of 2)
MII Interface
The MII-1 interface is disabled on the IXP421. Pull-ups and pull-downs are not needed
on the interface when using this processor.
MII Interfaces (Sheet 1 of 2)
HSS_TXDATA1
HSS_TXCLK1
HSS_RXFRAME1
HSS_RXDATA1
HSS_RXCLK1
††
ETH_TXCLK0
ETH_TXDATA0[3:0]
ETH_TXEN0
ETH_RXCLK0
ETH_RXDATA0[3:0]
ETH_RXDV0
ETH_COL0
ETH_CRS0
††
Name
Name
For a legend of the
For new designs, this signal should be pulled high with a 10-KΩ resistor when not being utilized in the
system. No change is required to existing designs that have this signal pulled low.
For a legend of the
For new designs, this signal should be pulled high with a 10-KΩ resistor when not being utilized in the
system. No change is required to existing designs that have this signal pulled low.
Intel
Type
®
Type
I/O
I/O
I/O
IXP42X product line and IXC1100 control plane processors—Design Checklist
O
I
O
O
I
I
I
I
I
I
Type
Type
Externally supplied transmit clock.
Should be pulled high
being utilized in the system.
No extra circuitry required.
No extra circuitry required.
Externally supplied receive clock.
Should be pulled high
being utilized in the system.
Should be pulled high
being utilized in the system.
Should be pulled high
being utilized in the system.
Should be pulled low through a 10-KΩ resistor when not being
utilized in the system.
Should be pulled high
being utilized in the system.
• Must be pulled high with a 10-KΩ resistor to V
• This signal is a N/C on the IXP420, IXP422, and IXC1100.
• Should be pulled high
• This signal is a N/C on the IXP420, IXP422, and IXC1100.
• Should be pulled high
• This signal is a N/C on the IXP420, IXP422, and IXC1100.
• Should be pulled high
• This signal is a N/C on the IXP420, IXP422, and IXC1100.
• Should be pulled high
• This signal is a N/C on the IXP420, IXP422, and IXC1100.
• 25 MHz for 100 Mbps operation
• 2.5 MHz for 10 Mbps
• 25 MHz for 100 Mbps operation
• 2.5 MHz for 10 Mbps
system using the IXP421 or IXP425.
being utilized in the system using the IXP421 or IXP425.
being utilized in the system using the IXP421 or IXP425.
being utilized in the system using the IXP421 or IXP425.
being utilized in the system using the IXP421 or IXP425.
codes, see
codes, see
Table 21 on page
Table 21 on page
††
††
††
††
††
Recommendation
Recommendation
through a 10-KΩ resistor when not
through a 10-KΩ resistor when not
through a 10-KΩ resistor when not
through a 10-KΩ resistor when not
through a 10-KΩ resistor when not
††
††
††
††
through a 10-KΩ resistor when not
through a 10-KΩ resistor when not
through a 10-KΩ resistor when not
through a 10-KΩ resistor when not
81.
81.
Document Number: 252817-008US
CCP
in a
December 2007
Complete?
Complete?

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