Motorola MCF5281 用户手册
MOTOROLA
Chapter 17. Fast Ethernet Controller (FEC)
17-3
Modes of Operation
17.2.2.2 10 Mpbs 7-Wire Interface Operation
The FEC supports a 7-wire interface as used by many 10 Mbps ethernet transceivers. The
RCR[MII_MODE] bit controls this functionality. If this bit is deasserted, the MII mode is
disabled and the 10 Mbps, 7-wire mode is enabled.
RCR[MII_MODE] bit controls this functionality. If this bit is deasserted, the MII mode is
disabled and the 10 Mbps, 7-wire mode is enabled.
17.2.3 Address Recognition Options
The address options supported are promiscuous, broadcast reject, individual address (hash
or exact match), and multicast hash match. Address recognition options are discussed in
detail in Section 17.4.8, “Ethernet Address Recognition”.
or exact match), and multicast hash match. Address recognition options are discussed in
detail in Section 17.4.8, “Ethernet Address Recognition”.
17.2.4 Internal Loopback
Internal loopback mode is selected via RCR[LOOP]. Loopback mode is discussed in detail
in Section 17.4.13, “Internal and External Loopback”.
in Section 17.4.13, “Internal and External Loopback”.