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Intel
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82575EB Gigabit Ethernet Controller — Transmit FIFO
Intel
®
82575EB Gigabit Ethernet Controller 324632-003
Software Developer’s Manual and EEPROM Guide Revision: 2.1
272 January 2011
11.8.2.5 Low-Pass Filter
To aid with EMI, this filter attenuates signal components more than 180 Mhz. In 1000BASE-T, the
fundamental symbol rate is 125 Mhz.
11.8.2.6 Line Driver
The line driver drives the 4DPAM5 waveforms onto the four twisted-pair channels (A, B, C, D), adding
them onto the waveforms that are simultaneously being received from the link partner.
11.8.2.7 Transmit/Receive Flow
Figure 31. 1000BASE-T Transmit Flow And Line Coding Scheme
Figure 32. 1000BASE-T Receive Flow