LM3S6918 Datasheet, PDF (649/689 Pages) Texas Instruments – ARM and Thumb are registered trademarks and Cortex is a trademark

Stellaris^® LM3S6918 Microcontroller
Figure 20-15. I²C Timing
I2
I6
I5
I2CSCL
I1
I4
I7
I8 I3
I9
I2CSDA
20.2.11 Ethernet Controller
Table 20-23. 100BASE-TX Transmitter Characteristics^a
Parameter Name
Peak output amplitude
Output amplitude symmetry
Output overshoot
Rise/Fall time
Rise/Fall time imbalance
Duty cycle distortion
Jitter
a. Measured at the line side of the transformer.
Min
Nom
950
-
98
-
-
-
3
-
-
-
-
-
-
-
Max
1050
102
5
5
500
-
1.4
Unit
mVpk
%
%
ns
ps
ps
ns
Table 20-24. 100BASE-TX Transmitter Characteristics (informative)^a
Parameter Name
Min
Nom
Max
Unit
Return loss
16
-
-
dB
Open-circuit inductance
350
-
-
µH
a. The specifications in this table are included for information only. They are mainly a function of the external transformer
and termination resistors used for measurements.
Table 20-25. 100BASE-TX Receiver Characteristics
Parameter Name
Min
Signal detect assertion threshold
600
Signal detect de-assertion threshold
350
Differential input resistance
-
Jitter tolerance (pk-pk)
4
Baseline wander tracking
-75
Signal detect assertion time
-
Signal detect de-assertion time
-
Nom
700
425
20
-
-
-
-
Max
-
-
-
-
+75
1000
4
Unit
mVppd
mVppd
kΩ
ns
%
µs
µs
Table 20-26. 10BASE-T Transmitter Characteristics^a
Parameter Name
Min
Peak differential output signal
2.2
Harmonic content
27
Link pulse width
-
Nom
-
-
100
Max
Unit
2.8
V
-
dB
-
ns
June 19, 2012
649
Texas Instruments-Production Data