EP(4) BSD/i386 Kernel Interfaces Manual EP(4)NAMEep — Ethernet driver for 3Com Etherlink III (3c5x9)
SYNOPSIS
device epDESCRIPTION
The ep device driver supports the 3c509 (ISA), 3c529 (MCA), 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
(thick-net)
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.
NOTES
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!
DIAGNOSTICS
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).
SEE ALSOed(4), el(4), ie(4), ifmedia(4), intro(4), le(4), ng_ether(4), vx(4),
ifconfig(8)STANDARDS
are great. There's so many to choose from.
BSD February 4, 1993 BSD
