Initialize both Triple-Speed Ethernets with the base address, assign the required MAC address in a register, specify the address of the required PHY device to be accessed through MDIO interface, set the PCS to operate at SGMII mode, and enable SGMII autonegotiation
. Set PHY address for accessing the PHY chip for Ethernet port 2 and another for port 1, enable automatic crossover for all modes of the PHY, and software-reset the PHY chip and wait.
- IEEE 802.3bp, IEEE Draft Standard for Ethernet Amendment: Physical Layer Specifications and Management Parameters for 1 Gb/s Operation over a Single Twisted Pair Copper Cable, defines physical layer (PHY) specifications (including optional single- pair autonegotiation
and Energy Efficient Ethernet) and parameters for full-duplex 1 Gb/s Ethernet operating in harsh environments found in automotive and industrial applications.
In 1994, National proposed that the 802.3 Working Group adopt its autonegotiation
technology, referred to as "NWay," into the Fast Ethernet standard.
It features one 10/100/1000-Ethernet port operating in autonegotiation
mode for seamlessly adapting to Ethernet infrastructures, and supports all relevant encryption methods, including WPA and WPA2.
The TC3240 provides 10/100-Mbps autonegotiation
and automatically adapts to full- or half-duplex mode.
rate adaptation feature ensures ease of use, as it allows the Prestige 641 to automatically adapt to whatever ADSL line settings are being used.
While maintaining the autonegotiation
feature, the latest release also offers the ability to disable autonegotiation
and force the copper port to 10 Mbps or 100 Mbps, and to force both the copper and fiber ports to full or half duplex.
Each 10/100TX port on an AT-FS700 switch supports half/full duplex operation and is IEEE 802.3u autonegotiation
The copper port supports 10/100/1000-Mbps speeds and half or Full-duplex autonegotiation
, with both hardware and software manual override controls to set the desired speed and duplex mode.
provides automatic selection of either the 10- or 100-Mbps data rate, and the MDI/MDIX feature allows the use of either straight-through or crossover electrical interface cables to simplify installation.--International Fiber Systems