PRIXP422ABB Intel, PRIXP422ABB Datasheet - Page 39

• Manufacturer Part Number: PRIXP422ABB
• Description: Network Proc 1.3V/3.3V 266MHz 492-Pin BGA
• Manufacturer: Intel

Specifications of PRIXP422ABB

• Package: 492BGA
• Core Operating Frequency: 266 MHz
• Operating Supply Voltage: 1.3|3.3 V
• Package Type: BGA
• Pin Count: 492
• Mounting: Surface Mount
• Operating Temperature (max): 70C
• Operating Temperature (min): 0C
• Operating Temperature Classification: Commercial
• Lead Free Status / Rohs Status: Compliant

Functional Signal Descriptions
Table 11.
June 2007
39
MII Interfaces (Sheet 2 of 2)
ETH_TXCLK1
ETH_TXDATA1[3:0]
ETH_TXEN1
ETH_RXCLK1
ETH_RXDATA1[3:0]
ETH_RXDV1
ETH_COL1
ETH_CRS1
†
††
Name
For a legend of the Type codes, see
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.
Power
or Sys
Reset
Reset
Z
Z
Z
Z
Z
Z
Z
Z
Reset
Post
VI
VI
VI
VI
VI
VI
0
0
Type
O
O
I
I
I
I
I
I
Table 5 on page
†
Externally supplied transmit clock.
Should be pulled high
Transmit data bus to PHY, asserted synchronously with respect to ETH_TXCLK1.
Indicates that the PHY is being presented with nibbles on the MII interface. Asserted synchronously, with
respect to ETH_TXCLK1, at the first nibble of the preamble, and remains asserted until all the nibbles of a
frame are presented.
Externally supplied receive clock.
Should be pulled high
Receive data bus from PHY, data sampled synchronously, with respect to ETH_RXCLK1.
Receive data valid, used to inform the MII interface that the Ethernet PHY is sending data.
Should be pulled high
Asserted by the PHY when a collision is detected by the PHY.
Asserted by the PHY when the transmit medium or receive medium are active. De-asserted when both the
transmit and receive medium are idle. Remains asserted throughout the duration of collision condition. PHY
asserts CRS asynchronously and de-asserts synchronously with respect to ETH_RXCLK1.
Should be pulled high
• 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
• Should be pulled low through a 10-KΩ resistor when not being utilized in the system.
30.
††
††
††
††
through a 10-KΩ resistor when not being utilized in the system.
through a 10-KΩ resistor when not being utilized in the system.
through a 10-KΩ resistor when not being utilized in the system.
through a 10-KΩ resistor when not being utilized in the system.
††
through a 10-KΩ resistor when not being utilized in the system.
Intel
®
IXP45X and Intel
Description
®
IXP46X Product Line of Network Processors Datasheet
Document Number:
252479-007US