参数资料
型号: EWIXP455ABT
厂商: INTEL CORP
元件分类: 微控制器/微处理器
英文描述: 266 MHz, RISC PROCESSOR, PBGA544
封装: LEAD FREE, PLASTIC, BGA-544
文件页数: 137/163页
文件大小: 1123K
代理商: EWIXP455ABT
Package Information
May 2005
Intel IXP45X and Intel IXP46X Product Line of Network Processors Datasheet
75
Document Number: 306261-002
ETHC_COL
Z
VI
I
MII Mode of Operation:
Asserted by the PHY when a collision is detected by the PHY. This MAC contains hardware
hashing capabilities local to the interface.
When NPE C is configured in MII mode of operation and the signal is not being used, it
should be pulled low through a 10-K
resistor.
SMII Mode of Operation:
Not used.
When NPE C is configured in SMII mode of operation, this signal must be pulled high
through a 10-K
resistor.
When this interface is disabled via the NPE-C Ethernet soft fuse (refer to the Expansion Bus
Controller chapter of the Intel IXP45X and Intel IXP46X Product Line of Network Processors
Developer’s Manual
) and is not being used a system desing, this interface/signal is not required
for any connection.
ETHC_CRS
Z
VI
I
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 ETHC_RXCLK.
This MAC contains hardware hashing capabilities local to the interface.
Should be pulled high through a 10-K
resistor when not being utilized in the system or when in
SMII mode of operation.
Table 16.
MII/SMII Interfaces (Sheet 8 of 8)
Name
Power
on
Reset
Normal
After
Reset
Until
Software
Enables
Normal
After
Software
Enables
Type
Description
NOTE:
This table discusses all features supported on the Intel IXP45X and Intel IXP46X Product Line of Network Processors. For details on feature support listed by processor,
see Table 1 on page 14.
For a legend of the Type codes, see Table 10 on page 46.
Please refer to Intel
IXP45X and Intel IXP46X Product Line of Network Processors Developer’s Manual for information on how to select the interface desired
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