Datasheet

Figure 32-33. I
2
C Timing
I2CSCL
I2CSDA
I1
I2
I6
I7 I8
I5
I3 I9
I4
I10
32.19 Ethernet Controller
32.19.1 DC Characteristics
The parameters listed in Table 32-49 on page 2146, with the exception of R
BIAS
, apply to transmit pins
of the Ethernet PHY, which are generally the EN0TXOP and EN0TX0N signals during standard
operation but can also be the EN0RXIN EN0RXIP signals if Auto-MDIX is enabled.
Table 32-49. Ethernet PHY DC Characteristics
UnitMaxNomMinParameter NameParameter
kΩ4.924.874.82Value of the pull-down resistor on the RBIAS
pin
R
BIAS
V1.0510.95100M transmit voltageV
TPTD_100
%2--2100M transmit voltage symmetryV
TPTDSYM
%5--Output overshootV
OVRSHT
V2.82.52.210M transmit voltageV
TPTD_10
mV-200-10Base-T Receive thresholdV
TH1
32.19.2 Clock Characteristics
Table 32-50. MOSC 25-MHz Crystal Specification
a
UnitMaxNomMinParameter NameParameterParameter No.
MHz-25-FrequencyF
MOSC25
N1
ppm±50-0Frequency tolerance at operational
temperature
F
TOL
-
ppm±5--Frequency stability at 1-year agingT
STA
-
a. Refer to Table 32-23 on page 2119 for additional MOSC requirements.
Figure 32-34. MOSC Crystal Characteristics for Ethernet
OSC0
N1
December 13, 20132146
Texas Instruments-Advance Information
Electrical Characteristics