PRIXP425ABC 885156 Intel, PRIXP425ABC 885156 Datasheet - Page 85

• Manufacturer Part Number: PRIXP425ABC 885156
• Manufacturer: Intel

Specifications of PRIXP425ABC 885156

• Lead Free Status / Rohs Status: Supplier Unconfirmed

Design Checklist—Intel
Table 26.
A.6
Table 27.
December 2007
Document Number: 252817-008US
MII Interfaces (Sheet 2 of 2)
UTOPIA-2 Interface
UTOPIA-2 Interface (Sheet 1 of 2)
ETH_MDIO
ETH_MDC
ETH_TXCLK1
ETH_TXDATA1[3:0]
ETH_TXEN1
ETH_RXCLK1
ETH_RXDATA1[3:0]
ETH_RXDV1
ETH_COL1
ETH_CRS1
†
††
UTP_OP_CLK
UTP_OP_FCO
UTP_OP_SOC
†
††
®
Name
Name
IXP42X product line and IXC1100 control plane processors
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.
Type
Intel
Type
I/O
O
O
O
I
I
I
I
I
I
O
O
I
®
†
Type
Type
†
IXP42X Product Line of Network Processors and IXC1100 Control Plane Processor
Must be pulled high through a 1.5-KΩ resistor when being
utilized in the system.
Should be pulled high
being utilized in the system.
No external circuitry needed.
Externally supplied transmit clock.
Should be pulled high
being utilized in the system.
This signal is a N/C on the IXP421,
No external circuitry needed.
This signal is a N/C on the IXP421.
No external circuitry needed.
This signal is a N/C on the IXP421.
Externally supplied receive clock.
Should be pulled high
being utilized in the system.
This signal is a N/C on the IXP421,
Should be pulled high
being utilized in the system.
This signal is a N/C on the IXP421,
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.
This signal is a N/C on the IXP421.
Should be pulled high
being utilized in the system.
This signal is a N/C on the IXP421.
• 25 MHz for 100 Mbps operation
• 2.5 MHz for 10 Mbps
• 25 MHz for 100 Mbps operation
• 2.5 MHz for 10 Mbps
• Should be pulled high
• This signal is a N/C on the IXP420, IXP422, and IXC1100.
• No external circuitry needed.
• This signal is a N/C on the IXP420, IXP422, and IXC1100.
• No external circuitry needed.
• This signal is a N/C on the IXP420, IXP422, and IXC1100.
codes, see
codes, see
being utilized in the system using the IXP421 or IXP425.
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
81.
81.
Hardware Design Guidelines
Complete?
Complete?
85