TN100A(4) BSD Programmer's Manual TN100A(4)NAME
TN100A - Physical layer (PHY) driver for built-in TI TN100A PHYceiver
SYNOPSIS
tn100a* at tl? phy ?
DESCRIPTION
The tn100a driver supports the Texas Instruments TN100A built-in PHYceiv-
er device (PHY) for 10 Mb/s 10baseT/BNC Ethernet. This device driver is
called upon by network device drivers; no direct administrative control
is provided.
The ifconfig(8) command in conjunction with the device driver making us-
ing of this drivers services provides an administrative interface that
allows various physical level parameters (such as duplex, speed, and
loopback) to be controlled.
This driver does not support NWay automatic negotiation.
Some cards provide either an 10base2 (BNC) or AUI connector; since there
is no way to tell if it exists the driver always assumes it's there. Se-
lecting this interface, if not implemented, may give undesired side ef-
fects.
SEE ALSOifconfig(8), tl(4)4th Berkeley Distribution August 13, 1997 1