All ports have the same link speed and run in full duplex mode.
2.
SPI devices communicate in full duplex mode using a frame for reading and writing.
3.
In full duplex mode, one lane is used for Transmit while the other is used for Receive.
4.
Furthermore, the 10BASE-T standard introduced a full duplex mode of operation which became common with Fast Ethernet and the de facto standard with Gigabit Ethernet.
5.
This is because data can be sent in both directions at the same time in full duplex mode, but only in one direction at a time in half duplex mode.
6.
Duplex mismatch may be caused by manually setting two connected network interfaces at different duplex modes or by connecting a device that performs autonegotiation to one that is manually set to a full duplex mode.
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