Texas Instruments TM4C1294NCPDT User Manual

Table 27-51. MOSC Single-Ended 25-MHz Oscillator Specification
a
(continued)
UnitMaxNomMinParameter NameParameterParameter
No.
ps-50-Jitter (cycle-to-cycle)
T
J
-
ns1--Jitter (over 10 ms)
%60-40Duty cycleDC-
Figure 27-35. Single-Ended MOSC Characteristics for Ethernet
OSC0
N4 N5 N5
27.19.3 AC Characteristics
Table 27-52. Ethernet Controller Enable and Software Reset Timing
UnitMaxNomMinParameter NameParameterParameter No.
µs--45Time from the System Control enable of the
PHY to energy on the PMD output pin
ab
T
EN
N16
ns--110Time from software reset of the PHY to energy
on the PMD output pin
T
SWRST
N17
a. The PHY is enabled through System Control by setting the P0 bit in the PCEPHY register and the R0 bit in the RCGCPHY
register.
b. This minimum timing assumes the PHYHOLD bit in the EMACPC register is not set.
Figure 27-36. Reset Timing
CLK
N16
PMD Output Pair
PHY Enable
PHY SW Reset
N17
Table 27-53. 100Base-TX Transmit Timing (t
R/F
and Jitter)
UnitMaxNomMinParameter NameParameterParameter No.
ns543100 Mb/s PMD output pair t
R
and t
F
a
T
RF
N38
ps500--100 Mb/s t
R
and t
F
symmetry
bc
T
RF_MM
June 18, 20141872
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Electrical Characteristics

Texas Instruments TM4C1294NCPDT Specifications

General

Brand	Texas Instruments
Model	TM4C1294NCPDT
Category	Microcontrollers
Language	English