Networking Silicon — GD82559ER
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The PHY unit does not differentiate between the fields of the MAC frame containing preamble, Start of Frame Delimiter, data and Cyclic Redundancy Check (CRC). The PHY unit encodes the first byte of the preamble as the “JK” symbol, encodes all other pieces of data according to the 4B/ 5B lookup table, and adds the “TR” code after the end of the packet. The PHY unit scrambles and serializes the data into a 125 Mbps stream, encodes it as
The transmit differential pair lines are implemented with a digital slope controlled current driver that meets the
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The magnetics module that is external to the PHY unit converts ITDP and ITDN to the 2.0 Vpp, as required by the
also work in
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Delta | LF8200A | Yes | Yes |
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Pulse Engineering | Yes | Yes | |
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Pulse Engineering | H1012 | Yes | Yes |
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Datasheet | 39 |