DragonFly On-Line Manual Pages  DC(4)                 DragonFly
Kernel Interfaces Manual                 DC(4)     device miibus
device dc   The dc driver provides support for several PCI fast
ethernet adapters and embedded controllers based on the
following chipsets: * DEC/Intel 21143 * Macronix 98713, 98713A,
98715, 98715A and 98725 * Davicom DM9100, DM9102 and DM9102A *
ASIX Electronics AX88140A and AX88141 * ADMtek AL981 Comet and
AN985 Centaur * Lite-On 82c168 and 82c169 PNIC * Lite-
On/Macronix 82c115 PNIC II * Conexant LANfinity RS7112 (miniPCI)
* Abocom FE2500 All of these chips have the same general
register layout, DMA descriptor format and method of operation.
All of the clone chips are based on the 21143 design with
various modifications. The 21143 itself has support for 10baseT,
BNC, AUI, MII and symbol media attachments, 10 and 100Mbps
speeds in full or half duplex, built in NWAY autonegotiation and
wake on LAN. The 21143 also offers several receive filter
programming options including perfect filtering, inverse perfec