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EP(4)               FreeBSD Kernel Interfaces Manual (i386)              EP(4)

     ep - Ethernet driver for 3Com Etherlink III (3c5x9)

     device ep

     The ep device driver supports the 3c509 (ISA), 3c529 (MCA), 3c579 (EISA),
     and various PCMCIA cards including the 3c589.  Various models of these
     cards come with a different assortment of connectors:

     AUI/DIX               Standard 15 pin connector, also known as 10base5

     10Base2               BNC, also known as thin-net

     10BaseT               UTP, also known as twisted pair

     The default port to use is the port that has been selected with the setup
     utility.  To override this, use the following media options with
     ifconfig(8) or in your /etc/rc.conf file.

     10base5/AUI           Use the AUI port.

     10base2/BNC           Use the BNC port.

     10baseT/UTP           Use the UTP port.

     If there are multiple cards in the computer, they are searched for in the
     following order: bus, slot, then ethernet address.

     The 3c509 card has no jumpers to set the address.  3Com supplies software
     to set the address of the card in software.  To find the card on the ISA
     bus, the kernel performs a complex scan operation at IO address 0x110.
     Beware!  Avoid placing other cards at that address!

     Furthermore, the 3c509 should only be configured in EISA mode when
     installed in a computer that has actual EISA slots (and an EISA-aware
     BIOS).  The normal driver auto-detection support is sufficient for non-
     EISA systems.

     ep0: reset (status: %x)  The driver has encountered a FIFO underrun or
     overrun.  The driver will reset the card and the packet will be lost.
     This is not fatal.

     ep0: eeprom failed to come ready  The eeprom failed to come ready.  This
     probably means the card is wedged.

     ep0: 3c509 in test mode. Erase pencil mark!  This means that someone has
     scribbled with pencil in the test area on the card.  Erase the pencil
     mark and reboot.  (This is not a joke).

     ed(4), el(4), ie(4), intro(4), le(4), ng_ether(4), vx(4), ifconfig(8)

     are great.  There's so many to choose from.

FreeBSD 11.0-PRERELEASE        February 4, 1993        FreeBSD 11.0-PRERELEASE


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