82544EI Datasheet, PDF (31/52 Pages) Intel Corporation – Gigabit Ethernet Controller

82544EI Gigabit Ethernet Controller Networking Silicon Datasheet
Figure 9. T_VAL Test Load (PCI 5V Signalling Environment)
Pin
Test
1/2 inch max.
Point
50 pF
Note: 50 pF load used for maximum times. Minimum times are specified with 0 pF load.
Figure 10. Output Slew Rate Test Load (PCI-X only)
Pin
Test
1/2 inch max.
Point
140 Ω
10 pF
V_CC
140 Ω
4.5.2
Targeted Link Interface Timing
4.5.2.1 Link Interface Rise and Fall Time
Table 15. Rise and Fall Time Definition
Symbol
T_R
T_F
T_R
T_F
Parameter
Clock Rise Time
Clock Fall Time
Data Rise Time
Data Fall Time
Condition
Min
0.8V to 2.0V
0.7
2.0V to 0.8V
0.7
0.8V to 2.0V
0.7
2.0V to 0.8V
0.7
Max
Units
ns
ns
ns
ns
Datasheet
27