我现在设计一个PC104加HUB的系统.HUB用RTL8309SB实现,现在PC104出来就是经过网变的差分传输信号(就是RJ45的四根线)。而RTL8309SB手册上说
The ninth port of the RTL8309SB implements a MAC module without a PHY transceiver to provide an MII interface for connection with an external PHY or MAC in specific applications.This MII interface may be set to MII PHY mode,SNI PHY module,or MII MAC mode to work with an external MAC module in a routing engine application,PHY module in a HomePNA application,or other physical layer transceivers.In order to operate correctly,both sides of the connection must be configured to the same speed,duplex,and flow control setting.Four pins are used for the ninth port to force the link status.
也就是RTL8309SB上输入网口没有PHY，我是不是要在前面加一个网络芯片再接到RTL8309SB上，至少基本理解是这样。问题是怎么连接，我第一次接触网络，概念都没有，无良的BOSS。谁用这个东西做过交换机给点意见，谢谢先！
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