Texas Instruments TM4C1294NCPDT User Manual

27.19 Ethernet Controller
27.19.1 DC Characteristics
The parameters listed in Table 27-49 on page 1871, 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 27-49. 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
27.19.2 Clock Characteristics
Table 27-50. 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 27-23 on page 1838 for additional MOSC requirements.
Figure 27-34. MOSC Crystal Characteristics for Ethernet
OSC0
N1
Table 27-51. MOSC Single-Ended 25-MHz Oscillator Specification
a
UnitMaxNomMinParameter NameParameterParameter
No.
MHz-25-FrequencyF
OSC
N4
ppm±50-0Frequency tolerance at operational
temperature
F
TOL
-
ppm±50--Frequency stability at 1-year agingT
STA
-
ns1--Frequency rise and fall timeT
RF
N5
1871June 18, 2014
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TM4C1294NCPDT Microcontroller

Texas Instruments TM4C1294NCPDT Specifications

General

Brand	Texas Instruments
Model	TM4C1294NCPDT
Category	Microcontrollers
Language	English