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1.\" $NetBSD: le.4,v 1.22 2004/10/04 19:12:52 rumble Exp $
2.\"
3.\"-
4.\" Copyright (c) 1992, 1993
5.\" The Regents of the University of California. All rights reserved.
6.\"
7.\" This software was developed by the Computer Systems Engineering group
8.\" at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and

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29.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33.\" SUCH DAMAGE.
34.\"
35.\" from: Header: le.4,v 1.2 92/10/13 05:31:33 leres Exp
36.\" from: @(#)le.4 8.1 (Berkeley) 6/9/93
37.\" $FreeBSD: head/share/man/man4/le.4 162005 2006-09-04 16:45:08Z marius $
37.\" $FreeBSD: head/share/man/man4/le.4 162871 2006-09-30 15:14:49Z ru $
38.\"
39.Dd September 4, 2006
40.Dt LE 4
41.Os
42.Sh NAME
43.Nm le
44.Nd "AMD Am7900 LANCE and Am79C9xx PCnet Ethernet interface driver"
45.Sh SYNOPSIS

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238.Tn AMD Am79C976 PCnet-PRO
239.It
240.Tn AMD Am79C978 PCnet-Home
241.El
242.Pp
243The
244.Nm
245driver supports the following media types with these chips:
246.Pp
247.Bl -tag -width xxxxxxxxxxxxxxxxxxxx
248.It autoselect
246.Bl -tag -width ".Cm 10base5/AUI"
247.It Cm autoselect
248Enable autoselection of the media type.
250.It 10baseT/UTP
249.It Cm 10baseT/UTP
250Select UTP media.
252.It 10base5/AUI
251.It Cm 10base5/AUI
252Select AUI/BNC media.
253.El
254.Pp
255The following media option is supported with these media types:
257.Pp
258.Bl -tag -width xxxxxxxxxxxxxxxxxxxx
259.It full-duplex
256.Bl -tag -width ".Cm full-duplex"
257.It Cm full-duplex
258Select full duplex operation.
259.El
260.Pp
261Note that unlike the
262.Xr pcn 4
263driver, the
264.Nm
265driver does not support selecting 100Mbps (Fast Ethernet) media types.
266.Ss sparc64
267The
268.Nm
269driver supports the on-board
270.Tn LANCE
271interfaces found in
272.Tn Sun Ultra 1
273machines.
274The following media types are available with these:
277.Pp
278.Bl -tag -width xxxxxxxxxxxxxxxxxxxx
279.It autoselect
275.Bl -tag -width ".Cm 10base5/AUI"
276.It Cm autoselect
277Enable autoselection of the media type.
281.It 10baseT/UTP
278.It Cm 10baseT/UTP
279Select UTP media.
283.It 10base5/AUI
280.It Cm 10base5/AUI
281Select AUI media.
282.El
283.Pp
284When using autoselection, a default media type is selected for use by
285examining all ports for carrier.
286The first media type with which a carrier is detected will be selected.
287Additionally, if carrier is dropped on a port, the driver will switch
288between the possible ports until one with carrier is found.

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