82563EB Datasheet, PDF (35/52 Pages) Intel Corporation – Intel® 82563EB/82564EB Gigabit Ethernet Controllers

82563EB/82564EB Gigabit Platform LAN Connect Networking Silicon
Table 28. Kumeran (Serial) Receive Specifications
Symbol
Parameter
Min
Typ
Common Mode Return
Loss
6
-
TDR Rise
-
85
Impedance at Connection
70
100
Max
Unit
-
dB
-
Ω
130
Note: TDR measurements are recorded times. Record time = TDR transmit time *2.
The receiver expects to receive a signal meeting the following eye diagram.
Notes
675mV
100mV
0mV
-100mV
-675mV
0
2.4 4 5.6
8
Time (ns)
Figure 8. Kumeran (Serial) Receive Eye Diagram
4.6.3
Electrical Idle
The Kumeran interface also implements electrical idle. As a result, it needs to:
• Detect when the 631xESB/632xESB has gone into electrical idle
• Go into electrical idle
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